Personal data Full name Paulo Jorge Tavares Ferreira Birth Place and date Mozambique / 05-10-1963 Nationality Portugal Profissional Address Chemical Engineering Department Universidade de Coimbra Polo II R. Sílvio Lima 3030-790 Coimbra PORTUGAL Contact data Telefone: 351.239.798.700 / 747 Fax: 351.239.798.703 Email: [email protected] URL: ww2.eq.uc.pt Academic degrees 2000: PhD.; University of Coimbra 1987: Graduation in Chemical Engineering; Chemical Engineering Department / Faculty of Sciences and Technology (DEQ/FCTUC) - University of Coimbra Previous and current scientific and/or professional activities Main activities: 1987 - 1988: Process Engineer; Soporcel Pulp and Paper Mill; 1988 - 1992: Teaching Assistant; DEQ/FCTUC; 1992 - 2000: Assistant; DEQ/FCTUC; Since October 2000: Auxiliar Professor; DEQ/FCTUC Others: 1994 – 2003: Manager of the Laboratory Quality System; Labgran; 1994 – 1999: Member of the Senate of the University of Coimbra 1994-1999: Member of the Scientific Commission of the Senate of the University of Coimbra 2001 - 2004: Member of DEQ/FCTUC Executive Committee; 2003 - 2004: Vice-President of DEQ/FCTUC 06.2008 - 10.2009: Vice President of the Scientific Board of DEQ/FCTUC 2008 - 2012 : Member of the Directive Board of TECNICELPA (Associação Nacional dos Técnicos de Celulose e Papel) 10.2009- : Vice-Director of DEQ/FCTUC 1/15 2010 – 2012: Vice-President of TECNICELPA (Associação Nacional dos Técnicos de Celulose e Papel) Domain of specialization The scientific activity includes both the Pulp and Paper Science and Technology and the Particle Science and Technology, and therefore the domain of specialization comprises the characterization of the fibrous and the particulate materials used in the pulping and the papermaking processes, as well as their influence on the performance of these processes and on the end-products properties. Therefore, in the last few years, several studies were undertaken concerning fibres, fines, fillers and pigments. Another domain of study has been the evaluation of the pulp properties (e.g., beatability and wet-web resistance) and the structure and properties of fine papers (e.g., formation, porosity, higroexpansivity and optical properties). More recently, new projects with other academic and industrial institutions have began, regarding the surface characterization of fine papers and the interactions with surface sizing agents, coating-colours and inks. Some attention is now directed also towards the flocculation and fibre flow processes in papermaking. Present research interests - Analysis and characterization of pulps, fibres and fines Pulp and paper surface studies: physico-chemical characterization; Surface sizing, pigmentizing, nanocoating, and printability in woodfree printing and writing papers; Characterization of paper fillers and pigments; Flocculation studies in papermaking; Fibres flow suspension Paper higroexpansivity studies Pulp and paper porosity studies; Supervising experience in advanced training PhD. Thesis: - Physical and Chemical Interactions on Paper's Surface – Impact on the Printability of Papers Produced whit E. globullus Kraft Pulps, PhD student Isabel Maria Teixeira Moutinho (FCT grant holder – SFRH/BD/18197/2004) (2004-2008). - Biorefining of Sugar maple and Eucalypt, PhD. student Gustavo Vieira Gonçalves Pacheco Duarte (FCT grant holder– SFRH/BD/18193/2004) at the State University of New York, in the domain of New forest based materials - pulp and paper technology (2005-2010). MSc Thesis: - Beatability of bleached E. Globulus kraft pulps and influence on the dimentional stability of decorative papers (2005) - Evaluation of ink penetration n in inkjet printing for printing and writing papers (2008) - Surface sizing studies of printing and writing papers by FT-IR (2008). - Influence of the cooking parameters in the cooking yield of eucalypt wood (2008). 2/15 - New paper coating formulations for the improvement of printing quality (2009). Printing quality of glossy and mate offset papers (2009). Coating of paper fillers by sol-gel methods (2009). Flocculation studies and fillers retention using polyampholites (2010) Seminar work (final year of the graduation studies): - Fillers characterization in commercial printing and writing papers. - Influence of the long fiber and filler content on the wet-web strength of commercial kraft pulps. - Influence of the papermaking process in the characteristics of the fillers in printing and writing papers. - Studies of mechanisms of breaks at the wet-end of the papermachine - Influence of the industrial kraft pulping conditions on eucalyptus pulp properties - Influence of surface sizing on paper structure- a chemical analysis. - Pigment production for the improvement of printing and writing papers surfaces. - Relationship between the conditions of the bottom of the digestor on the industrial kraft pulping process and the eucalyptus pulp quality. - Evaluation of the long fiber effect on E. globulus kraft pulp resistance. - Surface characterization of P&W papers - Higroexpansivity studies along a paper machine - The influence of recycled fibers on the properties of P&W papers and packaging papers - Studies of the flushability of tissue papers - Coating of PCC particles for paper filling - On the manipulation of PCC particles produced in lab - Influence of PCC blends on the properties of P&W papers - Surface characterization of E. grandis pulps and papers: the influence of the bleaching conditions and of the biological treatment. Jury: PhD thesis: Estudi fonamentali aplicat de l’etapa d’eliminació de tinta per flotació (Girona, Spain); Vegetales alternativos a los agroalimentarios de usos múltiples para la obtención de pastas celulósicas mediante tecnologías limpias (Huelva, Spain); Impregnation treatments with alcali and hydrogen peroxide for the reduction of the energy consumption in the production of mechanical pulps: lignin structural modifications Scientific adviser for the submission to an European PhD. Degree (Madrid, Spain); Application of polypyrrole and polyaniline polymer-laden pulps in removing metal ions from aqueous solutions – PhD Candadicy Exam, Department of Paper and Bioprocess Engineering – College of Environmental Science and Forestry da State University of New York. Master degree: 3/15 Papermaking potential of short fibres pulps for the production of decorative papers; Papermaking potential of Pinus pinaster; Influence of the conditions of a pilot refiner on the fibre and paper properties of E. globulus kraft pulps; Influence of temperature, pH and alkalinity on the ASA sizing of E. globulus pulps; Powerful methods for the evaluation of paper dimensional stability. Participation in research projects - Contribution of portuguese Eucalyptus fibres to printing paper quality, funding FCT, POCTI/1999/ctm/34159 (2000-2003); - Optimization of paper surface quality with engineered pigments (funding FCT, POCTI/2002/equ/45364) (2003-2005); - Paper excellence network (funding PRAI – Centro (Programa Regional de Acções Inovadoras do Centro de Portugal / FEDER) (2002-2004); - NODESZELOSS – Novel device to study pulp suspensions behaviour in order to move towards zero energy losses in papermaking (CRAFT Program, European Comission, Proponent institution: Universidad Complutense de Madrid) (2004-2006). - Paper-ink interactions – inkjet printing (funding from Raiz – Instituto de Investigação da Floresta e Papel) (2005-2010). - Influence of cooking and ECF bleaching conditions on the surface properties of of Eucalyptus grandis kraft pulps – Joint Project Portugal/Argentina (funding GRICES/SECYT) (2005-2006). - Hydroexpasivity of Copy Paper Produced with Eucalyptus Fibers in an Industrial Machine – Project developed in association with Dr. Song Won Park, Professor from the Chemical Engineering Department from University of S. Paulo, Brazil (2004-2006). - Desenvolvimento de novas pastas para papéis especiais (funding from Grupo PortucelSoporcel – Fábrica de Cacia) (2007-2008). - Paper-ink interactions – offsett printing (funding from Raiz – Instituto de Investigação da Floresta e Papel) (2007-2010). - Internal sizing (funding from Raiz – Instituto de Investigação da Floresta e Papel and Grupo Portucel-Soporcel – Fábrica da Figueira da Foz) (2007-2009). - Development of an experimental strategy to predict polyelectrolytes flocculation mechanisms: application to papermaking – POLYFLOC – funding FCT, PTDC/EQUEQU/66669/2006 2007-2010). - Red Iberoamericana para la revalorización del reciclado celulósico – RIARREC – Funding from CYTED - Programa iberoamericano de ciencia y tecnología para el Desarrollo (20082011). - PADIS – Papéis de alto desempenho à impressão – Funding QREN 5348 (SI I&DT) (20092011). - PAPERBRIGHT - Pastas branqueadas de elevado desempenho: do conhecimento fundamental à tecnologia avançada – funding FCT, PTDC/EQU-EQU/113547/2009 (20112014). - FIBERFLOW - Aplicação de Ferramentas de CFD à Modelização do Escoamento de Suspensões de Fibras – funding FCT, PTDC/EQU-EQU/112388/2009 (2011-2014). - NANOHIBRID - Preparation of stimuli-responsive magnetic functionalized hybrid nanoparticles via Self Assembly of the ABCDE type block copolymers for high performance coatings applications – funding FCT, PTDC/EQU-EPR/114354/2009 (2011-2014). 4/15 Comissions and Working Groups - Member of the Advisory Board of the journal “O Papel” (journal of the Associação Brasileira Técnica de Celulose e Papel). - National delegate of COST E32 – “Characterisation of paper surfaces for improved printing paper grades” (2004-2007). - National delegate of COST E54 – “Characterisation of the fine structure and properties of papermaking fibres using new technologies” (2007-2011). - Member of COST FP 1005 – Fibre suspension flow modelling - a key for innovation and competitiveness in the pulp & paper industry (2011-2015) - National delegate of RIADICYP – Red Iberoamericana de Docencia e Investigación en Celulosa Y Papel (2004- ). - Member of the Special Interest Group on Fibre Flow - ERCOFTAC (2008- ). - National delegate of RIARREC – Red Iberoamericana para la Revalorización del Reciclado Celulósico (2009- ) Training courses and organization of workshops, seminars and conferences - Pulp and Paper Technology - BEST Program (Board of European Students of Technology) (2002). - O Grande Mundo de uma Pequena Folha de Papel – workshop at IPN - Instituto Pedro Nunes (2003). - Training courses at: o Celbi- StoraEnso (2003, 2005) o Prado Karton (2008-2009) o Celbi (2011) - Member of the Organizing Committee of: o III Iberoamerican Conference on Pulp and Paper Research (Spain, 2004). o CHEMPOR’2005 – 9th International Chemical Engineering Conference (Portugal, 2005). o IV Iberoamerican Conference on Pulp and Paper Research (Chile, 2006). o COST E54 Conference and Management Committee Meeting – “Characterisation of the fine structure and properties of papermaking fibres using new technologies” (Portugal, 2010). o XXI Tecnicelpa National Conference / VI Iberoamerican Conference on Pulp and Paper Research (Portugal, 2010). o Management Committee Meeting of RIARREC – Red Iberoamericana para la Revalorización del Reciclado Celulósico (Portugal, 2010) o Management Committee Meeting of RIADICYP – Red Iberoamericana de Docencia e Investigación en Celulosa Y Papel (Portugal, 2010) - Member of the Scientif Committee of: o IV Iberoamerican Conference on Pulp and Paper Research (Chile, 2006). o V Iberoamerican Conference on Pulp and Paper Research (México, 2008). Publications 5/15 Books: Thesis Ferreira, P. J. (1992) – Experimental techniques to measuring solids concentration in mixing tanks, MSc. thesis, Faculty of Sciences and Technology, University of Coimbra, 169 pp. Ferreira, P. J. (2000) – Eucalyptus globulus kraft pulps studies: Structure characteristics and papermaking potential, PhD. thesis, Chemical Engineering, University of Coimbra, 400 pp Others: Ferreira, P. J. (1992) – Influence of particle shape on particle size analysis, Report of the lecture for the Pedagogical Aptitude and Scientific Capacity examination, Faculty of Sciences and Technology, University of Coimbra, 127 pp. Ferreira, P. J. (1995) – Granulate materials characterization – Part 2: Particle Shape, Chemical Engineering Book Series nº 3, Faculty of Sciences and Technology, University of Coimbra, 31 pp. Book Chapters Zanuttini, M., Antúnez, C., Clemente, A., Torres, A.L., Ferreira, P., Mochiutti, P. (2008) – Propiedades del papel, in Panorama de la Industria de Celulosa y Papel en Iberoamérica 2008, Area, M.C. (Ed.), Red Iberoamericana de Docência e Investigacion en Celulose y Papel, Misiones (Argentina), 235-275, ISBN 978-987-24513-0-1. Ferreira, Paulo (2008) – Panorama de los países miembros de la RIADICYP – Portugal, in Panorama de la Industria de Celulosa y Papel en Iberoamérica 2008, Area, M.C. (Ed.), Red Iberoamericana de Docência e Investigacion en Celulose y Papel, Misiones (Argentina), 498-505, ISBN 978-987-24513-0-1. Gamelas J.A.F., Santos J.M.R.C.A. and Ferreira P.J. (2011) - Surface energetics of Common Pulps I and II by Inverse Gas Chromatography. In Fine Structure of Papermaking Fibres, COST Action E54 “Characterisation of the fine structure and properties of papermaking fibres using new technologies”. Eds: Ander P., Bauer W., Heinemann S., Kallio P., Passas R. and Treimanis A. Swedish University of Agricultural Sciences, 39-50. ISBN 978-91-576-9007-4. Book Editor: COST Action E54 - “Characterisation of the fine structure and properties of papermaking fibres using new technologies” (2010), Paulo Ferreira and Jorge Canhoto (Eds.), Faculdade de Ciências e Tecnologia, Universidade de Coimbra, Proc. Scientific Workshop, MC9 and WGs Meeting, Coimbra (Portugal), 128 pp., ISBN 978-972-805517-2. Papers in international scientific periodicals with referees Ferreira, P. J., Rasteiro, M. G., Figueiredo, M. M. (1993) – Influence of shape on particle size analysis, Particulate Science and Technology, 11 (3-4): 199-206. Ferreira, P. J., Rasteiro, M. G., Figueiredo, M. M. (1994) – A new approach to measuring solids concentration in mixing tanks, Advanced Powder Technology, 5 (1): 15-24. 6/15 7/15 Fátima. M. Barreiros, Paulo J. Ferreira, M. Margarida Figueiredo (1996) – Calculating shape factors from particle sizing data, Particle & Particle Systems Characterization, 13: 368-373. Carvalho, M. G., Ferreira, P. J., Martins, A. A., Figueiredo, M. M. (1997) – A comparitive study of two automated techniques for measuring fiber length, Tappi Journal, 80 (2):137142. Paulo J. Ferreira, Sandra M. Matos, M. Margarida Figueiredo (1999) – Size characterisation of fibres and fines in hardwood kraft pulps, Particle & Particle Systems Characterization, 16: 20-24. Ferreira, P. J., Sousa, M. N., Vaz, M. H., Figueiredo, M. M. (2000) – Aplicação da microscopia confocal ao estudo de fibras de E. globulus - medição das dimensões transversais, O Papel (Revista da Associação Brasileira de Tecnologia em Celulose e Papel), LXI (4): 83-89.Resumo publicado na revista Appita Journal, 53 (4), 330 (2000). Ferreira, P. J., Martins, A. A., Figueiredo, M. M. (2000) – Primary and secondary fines from Eucaliptus globulus kraft pulps. Characterisation and influence, Paperi Ja Puu Paper and Timber, 82 (6): 403-408. Carvalho, M. G., Ferreira, P. J., Figueiredo, M. M. (2000) – Cellulose depolymerization and paper properties in E. globulus kraft pulps, Cellulose, 7 (4): 359-368. Ferreira, P. J., Figueiredo, M. M. (2001) – Efeito do cozimento e da refinação nas dimensões transversais de fibras de E. globulus, O Papel (Revista da Associação Brasileira de Tecnologia em Celulose e Papel), LXII, (1), 73-80. Carvalho, M. G., Ferreira, P. J., Santos, J. M. R. C. A., Amaral, J. L., Figueiredo, M. M. (2005) – Effect of extended cooking and oxygen pré-bleaching on the surface energy of Eucalyptus globulus kraft pulps, Journal of Pulp and Paper Science, 31 (2): 90-94. M.J. Moura, P.J. Ferreira, M.M. Figueiredo (2005) – Mercury intrusion porosimetry - a valuable tool for the characterization of wood, pulp and paper, Powder Technology 160 (2): 61-66. P.Ferreira, J.Velho, A.Mendes, M.Figueiredo (2005) – Effect of thermal treatment on the structure of PCC particles, Tappi Journal 4 (11):18-22. M. Graça Carvalho, João R. Fernandes, Luís A. Ferreira, Carlos A. Van Zeller, João Pinho Ferreira, Paulo J. T. Ferreira (2005) – Efeito da secagem no potencial papeleiro de pastas kraft de eucalipto – uma experiência industrial, O Papel (Revista da Associação Brasileira de Tecnologia em Celulose e Papel) LXVI (10), 2-10. Moutinho, I., Figueiredo, M., Ferreira, P. (2007) – Evaluating the surface energy of laboratory paper sheets by contact angle measurements, Tappi Journal 6 (6):26-32. Ventura, C.A.F., Garcia, F., Ferreira, P., Rasteiro, M.G. (2007) – Modelling the rheology of pulp fibre suspensions, Tappi Journal 6 (7):17-23. Isabel M. T. Moutinho, Paulo J. T. Ferreira, Margarida L. Figueiredo (2007) – Impact of surface sizing on inkjet printing quality, Ind.Eng.Chem.Res., 46 (19): 6183-6188. Ferreira, P., Santos, N., Oliveira, P., Velho, J. (2007) – A Influência das formulações de revestimento na qualidade de impressão de papeis para jacto de tinta, O Papel / Tecnicelpa – Suplemento Técnico, VII (2), 11-18. M. G. Rasteiro, F. A. P. Garcia, P. Ferreira, A. Blanco, C. Negro and E. Antunes (2008) – Evaluation of flocs resistance and reflocculation capacity using the LDS technique, Powder Technology, 183: 231-238. M.G. Rasteiro, F.A.P. Garcia, P. Ferreira, A. Blanco, C. Negro, E. Antunes (2008) – The use of LDS as a tool to evaluate flocculation mechanisms, Chem. Eng. Process., 47 (8): 1329-1338. 8/15 E. Antunes, F. A. P. Garcia, P. Ferreira, A. Blanco, C. Negro and M. G. Rasteiro (2008) – Effect of Water Cationic Content on flocculation, flocs resistance and reflocculation capacity of PCC induced by polyelectrolytes, Ind.Eng.Chem.Res., 47 (16): 6006-6013. Ventura, C.A.F., Garcia, F., Ferreira, P., Rasteiro, M.G. (2008) – Flow dynamics of pulp fibre suspensions, Tappi Journal 7 (8): 20-26. M. G. Rasteiro, F. A. P. Garcia, P. Ferreira and E. Antunes (2008) – Flocculation of PCC filler in papermaking: influence of the particle characteristics, Chemical Engineering Research and Design, 86: 1155-1160. E. Antunes, F.A.P. Garcia, P. Ferreira, A. Blanco, C. Negro and M.G. Rasteiro (2008) – Use of new branched polyacrylamides to improve retention and drainage in papermaking, Ind.Eng.Chem.Res, 47 (23): 9370-9375. Isabel T. Moutinho, Marjatta Kleen, Margarida L. Figueiredo, Paulo T. Ferreira (2009) – Effect of surface sizing on the surface chemistry of Eucalyptus containing paper, Holzsforschung, 63 (3): 282-289. Paulo J. Ferreira, José A. Gamelas, Isabel M. Moutinho, Ana G. Ferreira, Nuria Gómez, Cristina Molleda, M. Margarida Figueiredo (2009) – Application of FT-IR-ATR to evaluate the penetration of surface sizing agents into the paper structure, Ind.Eng.Chem.Res, 48 (8), 3867–3872. Loureiro, P.E.G. Ferreira, P.J., Evtyugin, D.V., Carvalho, M.G.S.V. (2009) – Effect of the Final Bleaching Stage on Eucalyptus Kraft Pulp Properties – a Comparison between Hydrogen Peroxide and Chlorine Dioxide, Pulp & Paper Canada 110 (9), 23 (Full peerreviewed manuscript available on www.paptac.ca) Area, M.C., Carvalho, M.G., Ferreira, P.J., Felissia, F.E., Barboza, O.M., Bengoechea, D.I,. (2010) – Bioresources Technology, 101, 1877-1884. Isabel Moutinho, Petri Ihalainen, Margarida Figueiredo, Jouko Peltonen, Paulo Ferreira (2010) – On the evaluation of the topography of surface sized Eucalyptus based papers, Ind.Eng.Chem.Res, 49 (1), 1-5. M. Saraiva, J. A. F. Gamelas, A. P. Mendes de Sousa, B. M. Reis, J. L. Amaral, P. J. Ferreira (2010) – New Approach for the Paper Surface Properties Modification Using Polyometalates and Cationic Starch, Materials, Special Issue "Polyoxometalate Compounds", 3, ISSN 1996-1944, 201-215. Maria da Graça Rasteiro, Fernando. A. P. Garcia, Paulo J. Ferreira, Elisabete Antunes, Christine Wandrey, David Hunkeler (2010) – Flocculation by cationic polyelectrolytes: relating efficiency with polymer characteristics, Journal of Applied Polymer Science, 3603-3612. Elisabete Antunes; Fernando Garcia; Paulo Ferreira; Angeles Blanco; Carlos Negro; Maria da Graca Rasteiro (2010) – Modelling PCC flocculation by bridging mechanism using population balances: effect of polymer characteristics on flocculation, Chemical Engineering Science, 65, 3798-3807. Simona Peterlin, Odon Planinsˇek, Isabel Moutinho, Paulo Ferreira, Darko Dolenc (2010) – Inverse gas chromatography analysis of spruce fibers with different lignin content, Cellulose (doi: 10.1007/s10570-010-9444-4, published online 2010.08.28) E. Antunes, P. Ferreira, M.G. Rasteiro, F.A.P. Garcia (2010) – Evaluation of Polyelectrolytes Performance on PCC Flocculation Using the LDS Technique, Particulate Science and Technology, 28 (5): 426–441. Mendes, A.H.T., Park, S.W., Almeida, F.S., Ferreira, P.J. (2010) – Characteristics of reprographic paper produced with eucalyptus fibre and relationship with dimensional stability, O Papel (Revista da Associação Brasileira de Tecnologia em Celulose e Papel), 71 (8): 63-73. Tiago G. Costa, José A. Gamelas, Isabel M. Moutinho, M. Margarida Figueiredo, Paulo J. Ferreira (2010) – The influence of the paper surface sizing on the inkjet pigment penetration, Appita Journal, 63 (5), 392-398. Theresa Chimamkpam, Maria da Graça Rasteiro, Fernando P. Garcia, Elisabete Antunes, Paulo Ferreira, David Hunkeler, Christine Wandrey – Solution viscosity and flocculation characteristics of linear polymeric flocculants in various media, Chemical Engineering Research and Design (doi: 10.1016/j.cherd.2010.10.022, published online 2010.10.20). I. Moutinho, M. Figueiredo, P.J. Ferreira – Comparative study of Inverse Gas Chromatography and Contact Angle Measurements in the Analysis of Paper Surfaces, Colloids and surfaces A: Physicochemical and Engineering Aspects (submitted). Carla A.F. Ventura, F. Garcia, P. Ferreira, M.G. Rasteiro – Modelling the Pipe friction loss of pulp fibre suspensions, Tappi Journal (submitted). Carla A.F. Ventura, F. Garcia, P. Ferreira, M.G. Rasteiro – Dynamic factor - A parameter to characterize pulp rheology, The Canadian Journal of Chemical Engineering (submitted). Carla A.F. Ventura, Fernando A.P. Garcia, Paulo J. Ferreira, M. Graça Rasteiro – Modelling the turbulent flow of pulp suspensions, Ind.Eng.Chem.Res, (submitted). M. Graça Rasteiro, Fernando A.P. Garcia, Paulo J. Ferreira, Carla A.F. Ventura – Modelling fibre suspension flow using a continuum approach experimental characterization and simulation, Fibre Suspensions flows, ERCOFTAC Bulletin (submitted). Area, María; Felissia, Fernando; Carvalho, M. Graça; Ferreira, Paulo; Barboza, Olga; Bengoechea, Dora – Characterization of Eucalyptus Grandis Kraft Pulps Treated with Phosphonates in Different Stages of Tcf Bleaching, Journal of Chemical Technology & Biotechnology (submitted). Afonso H. T. Mendes, Song W. Park, Paulo J. T. Ferreira, Fabio S. Almeida Hygroexpansivity Profiles on a Commercial Paper Machine, Nordic Pulp & Paper Research Journal (submitted). Afonso H. T. Mendes, Hae Y. Kim. Paulo J. T. Ferreira, Song W. Park – The importance of the measurement of paper differential CD shrinkage, Tappi Journal (submitted). José A. F. Gamelas, Ana F. Lourenço, Paulo J. Ferreira - New modified filler for papermaking obtained by silica formed in situ on precipitated calcium carbonate, Journal of Sol-Gel Science and Technology (submitted). Maria G. Rasteiro , Ineide Pinheiro, Fernando A. P. Garcia, Paulo Ferreira, David Hunkeler – Using Light Scattering to Screen PEL Performance in Flocculation, Polymers (submitted). Papers in conference proceedings Ferreira, P. J., Rasteiro, M. G., Figueiredo, M. M. (1993) – Measurements of solids concentration in a mixing tank (in portuguese), Proc. CHEMPOR´93 - International Chemical Engineering Conference, Oporto, 525-533. Ferreira, P. J., Rasteiro, M. G., Figueiredo, M. M. (1993) – Particle size analysis - Why? How? (in portuguese), Proc. Materiais 93 – 6º Conference of the Portuguese Materials Society, Oporto, 501-511. Ferreira, P. J., Carvalho, M. G., Martins, A. A., Figueiredo, M. M. (1996) – Dimensional characterization of E. globulus fibres (in portuguese), Proc. XV Tecnicelpa National Conference, Aveiro, 208-218. 9/15 Paulo J. Ferreira, Sandra M. Matos, M. Margarida Figueiredo (1998) – Size characterisation of fibres and fines in hardwood kraft pulps, Proc. World Congress on Particle Technology 3, Brighton – Reino Unido (CD-ROM). Ferreira, P. J., Carvalho, M. G., Martins, A. A., Figueiredo, M. M. (1998) – Effect of the kraft cooking conditions on the beatability of portuguese E. globulus pulp – evaluation of the papermaking potential (in portuguese), Proc. CHEMPOR´98 - International Chemical Engineering Conference, Lisbon, 353-360. Ferreira, P. J., Vaz, M. H., Sousa, M. N., Figueiredo, M. M. (1998) – Study of Eucalyptus globulus kraft pulp fibres by confocal microscopy – cross dimension measurements (in portuguese), Proc. XVI Tecnicelpa National Conference, Covilhã, 335-364. Ferreira, P. J., Carvalho, M. G., Martins, A. A., Figueiredo, M. M. (1998) – Influence of the chemical characteristics of E. globulus kraft pulps on their beating potential and paper properties, Proc. Final European Conference of the COST Action E1 “Paper Recyclability”, Las Palmas de Gran Canaria, LXXXIII-LXXXIV. Ferreira, P. J., Carvalho, M. G., Figueiredo, M. M. (2001) –Effect of the chemical characteristics of E. globulus kraft pulps on the fibre length changes during beating (in portuguese), Proc. CHEMPOR´2001 - International Chemical Engineering Conference, Aveiro, 1223-1230. Ferreira, P. J., Henriques, R. A. Figueiredo, M. M. (2001) – Influence of secondary fines on the properties of E. globules kraft pulps (in portuguese), Proc. XVIII Tecnicelpa National Conference, Figueira da Foz, 41-49. Ferreira, P. J., Vaz, M. H., Figueiredo, M. M. (2002) – A contribution to the measurement of the cross dimensions of wood pulp fibres, Proc. World Congress on Particle Technology 4, Sidney – Austrália (CD-ROM). Moura, M.J., Ferreira, P.J., Figueiredo, M. M. (2002) – The use of mercury intrusion porosimetry to the characterization of eucalyptus wood, pulp and paper, Proc. Congresso Iberoamericano de Investigação em Celulose e Papel, Campinas – Brasil (CD-ROM). A. I. Aquino, P. J. Ferreira, M. G. Carvalho, J.L. Amaral, M. M. Figueiredo (2002) Influence of cooking and bleaching conditions on the surface characterization and paper properties of Eucalyptus globulus bleached kraft pulps, Proc. Congresso Iberoamericano de Investigação em Celulose e Papel, Campinas – Brasil (CD-ROM). Ferreira, P. J., Mendes, A. J., Figueiredo, M. M. (2002) – Fillers removal in printing and writing papers (in portuguese), Proc. 35º Cellulose and paper annual congress, S. Paulo – Brasil (CD-ROM). Ferreira, P. J., Guimarães, N.M. (2003) – Effect of softwoods on the wet-web strength of E. globulus bleached kraft based furnishes, Proc. 28th Eucepa Conference, Lisbon, 108112. Velho, J., Santos, N. F., Conceição, S., Ferreira, P. J., Carvalho, M. G., Ferreira, J. M. (2004) – Technical aspects for surface, structure and print characterization f coated papers, Proc. PulPaper 2004 – 1-3 June 2004, Helsinki – Finland, (CD-ROM,8 pp.). Moutinho, I., Figueiredo, M.M., Ferreira, P.J. (2004) – Influência dos agentes de colagem superficial na estrutura do papel, Proc. Congresso Iberoamericano de Investigação em Celulose e Papel, Córdova – Espanha, 377-383. M. Graça Carvalho, João R. Fernandes, Luís A. Ferreira, Carlos A. Van Zeller, João Pinho Ferreira, Paulo J. T. Ferreira (2005) – Efeito da secagem no potencial papeleiro de pastas kraft de eucalipto – uma experiência industrial, Proc. XIX Encontro Nacional Tecnicelpa, Tomar, 247-255. 10/15 Amaro, B.J., Mendes, A.H., Park, S.W., Ferreira, P.J. (2005) – Studies of hygroexpansivity along a paper machine, Proc. VIII AVTCP Conference, Maracay, Venezuela. Simona Peterlin, Tjaša Drnovšek, Darko Dolenc, Anton Perdih, Paulo Ferreira, Isabel Moutinho (2006) – Fibre surface activity analyzed by the method of selective staining and inverse gas chromatography. Proc. 9th European Workshop on Lignocellulosics and Pulp – EWLP, Viena – Áustria. Moutinho, M. Figueiredo, P.J. Ferreira (2006) – Efeito do tratamento de superfície do papel na qualidade de impressão, Proc. Congresso Iberoamericano de Investigação em Celulose e Papel, Santiago – Chile (CD-ROM,8 pp.). Area, M.C., Carvalho, M.G., Ferreira, P.J., Felissia, F.E., Jorge, C.S., Vilalba, L. (2006) – Relaciones entre las condiciones de procesamiento y las propiedades de pulpas kraft de eucalyptus grandis, Proc. Congresso Iberoamericano de Investigação em Celulose e Papel, Santiago – Chile (CD-ROM,9 pp.). Velho, J., Ferreira, P., Santos, N. (2006) – Ângulo de contacto: uma ferramenta para a avaliação da eficiência de revestimento de papéis finos Proc. Congresso Iberoamericano de Investigação em Celulose e Papel, Santiago – Chile (CD-ROM,8 pp.). S.C. Neves, M.G. Rasteiro, P.J. Ferreira (2006) – Evaluation of the flushability of tissue papers, Proc. Congresso Iberoamericano de Investigação em Celulose e Papel, Santiago – Chile (CD-ROM, 7 pp.). Rasteiro, M.G., Garcia, F.A.P, Ferreira, P. Antunes, E. – The use of LDS to assess flocculation dynamics, Proc. PARTEC 2007 – International Congress on Particle Technology, Nuremberg – Alemanha (CD-ROM, 5 pp.) (2007). Carla A.F. Ventura, F. Garcia, P. Ferreira, M.G. Rasteiro – The flow dynamics of pulp fibre suspensions, Proc. XX Encontro Nacional Tecnicelpa, Tomar, 143-150 (2007). I. Moutinho, M. Figueiredo, P. J. Ferreira - Evaluating the surface energy of surface sized printing and writing papers, Proc. XX Encontro Nacional Tecnicelpa, Tomar, 65-72 (2007). E. Antunes, F. Garcia, P. Ferreira, M.G. Rasteiro – Effect of water cationic content on PCC flocculation induced by CPAM, Proc. XX Encontro Nacional Tecnicelpa, Tomar, 177-184 (2007). A.P. Mendes de Sousa, J.L. Amaral, N. J. Oliveira, Cidália Torre, Dmitry Evtuguin, Paulo Ferreira, Isabel Moutinho, Ana Maria Ramos, Sónia Sousa, Rogério Simões, J. Lopes Velho, Natércia Santos – Estudo da interacção tinta-papel em impressão inkjet, Proc. XX Encontro Nacional Tecnicelpa, Tomar, 109-116 (2007). Velho, J., Santos, N.F., Ferreira, P. – Influência da formulação da calda de revestimento na qualidade de impressão de papéis finos, Proc. XX Encontro Nacional Tecnicelpa, Tomar, 159-166 (2007). Paulo J. T. Ferreira, M. Graça V. S. Carvalho, Neusa Barbeiros, Fernando Felissia, M. Cristina Área – Estudo de tratamentos alternativos no processo de branqueamento de pastas kraft de eucalipto - caracterização da superfície das folhas por técnicas não convencionais, Proc. XX Encontro Nacional Tecnicelpa, Tomar, 239-242 (2007). Castanheira, Sónia; Torre Abreu, Cidália; Heitor, Maria José; Ataíde, José; Ferreira, Paulo – Variability of kraft pulps opacity – a case study, Proc. XX Encontro Nacional Tecnicelpa, Tomar, 231-243 (2007). Pedro Loureiro, Ana Rita Oliveira, Vera Lourenço, Susana Pinto, M. Helena Gil, Margarida Figueiredo, Paulo Ferreira – Polymeric coatings on PCC particles as fillers for printing and writing papers, Proc. XX Encontro Nacional Tecnicelpa, Tomar 235-238 (2007). 11/15 Mendes, A.H.T., Park, S.W., Ferreira, P.J., Amaro, B.J., Almeida, F.S. – Higroexpansibilidade de papel reprográfico produzido com fibras de eucalipto – Parte 1: Princípios de medição de higroexpansibilidade, Proc. 40º Congresso Anual de Celulose e Papel - ZELLCHEMING, S. Paulo – Brasil (CD-ROM, 20 pp.) (2007). Mendes, A.H.T., Park, S.W., Ferreira, P.J., Amaro, B.J., Almeida, F.S. – Higroexpansibilidade de papel reprográfico produzido com fibras de eucalipto – Parte 2: Variação ao longo da máquina de papel, Proc. 40º Congresso Anual de Celulose e Papel ZELLCHEMING, S. Paulo – Brasil (CD-ROM, 12 pp.) (2007). Mendes, A.H.T., Park, S.W., Ferreira, P.J., Amaro, B.J., Almeida, F.S. – Higroexpansibilidade de papel reprográfico produzido com fibras de eucalipto – Parte 3: Variação na direcção transversal da máquina de papel, Proc. 40º Congresso Anual de Celulose e Papel - ZELLCHEMING, S. Paulo – Brasil (CD-ROM, 10 pp.) (2007). Isabel Moutinho, Pedro Oliveira, Margarida Figueiredo, Paulo Ferreira – Surface sizing as a tool to modify paper properties and printing quality, Proc. VIIIth Seminar in Graphic Arts, Pardubice – Rep. Checa, 143-150 (2007). Carla A. F. Ventura, F. Garcia, P. Ferreira, M.G. Rasteiro - Turbulent pulp flow simulation”, Proc. International Conference “Modelling and simulation in the Pulp and Paper Industry” – Cost E36, Madrid – Spain, 244-257 (2008). M. G. Rasteiro, E. Antunes, F. Garcia, P. Ferreira, C. Wandrey, D. Hunkeler – Flocculation by Polyelectrolytes: Correlating the Flocculation Process with Polymer Characteristics, 7th International Symposium on Polyelectrolytes - Polyelectrolytes 2008, Portugal, OC#3.12, 49 (2008). Carla A.F. Ventura, F. Garcia, P. Ferreira, M.G. Rasteiro – Pipe friction loss mechanisms of pulp fibre suspensions, Proc. Chisa 2008 – Czech Society of Chemical Engineering, Praga – Rep. Checa (CD-ROM, 16 pp.) (2008). E. Antunes, F.A.P. Garcia, P. Ferreira, M.G. Rasteiro – Monitoring Flocculation of Precipitated Calcium Carbonate Using LDS: study of the influence of polyelectrolyte branching, Proc. PSA 2008 – Particulate Systems Analysis, Stratford-upon-Avon – Reino Unido, #012 (2008). Loureiro, P.E.G. Ferreira, P.J., Evtyugin, D.V., Carvalho, M.G.S.V. – Effect of the Final ECF Bleaching Stage on the Eucalyptus Kraft Pulp Properties – a Comparison between Hydrogen Peroxide and Chlorine Dioxide, Proc. International Pulp Bleaching Conference, Québec – Canadá, 259-263 (2008). Isabel M. T. Moutinho, M. Margarida L. Figueiredo, Paulo J. T. Ferreira – Physicochemical characterization of surface sized paper surfaces, Proc. CHEMPOR’2008 – 10th International Chemical Engineering Conference, Braga, 345, (CD-ROM, PA074, 6 pp.) (2008). Area, María C., Felissia, Fernando E., Ferreira, Paulo J., Carvalho, M. Graça, Barboza, Olga, Bengoechea, D. – Characterization of TCF bleached Eucalyptus grandis kraft pulp treated with phosphonates in different stages, Proc. V Congresso Iberoamericano de Investigação em Celulose e Papel, Guadalajara – México, 50-53 (CD-ROM, 10 pp.) (2008) - ISBN 978-987-24513-5-6. P.J. Ferreira, I. Moutinho, M. Figueiredo – How topography affects contact angle measurements, Proc. V Congresso Iberoamericano de Investigação em Celulose e Papel, Guadalajara – México, 66-68 (CD-ROM, 9 pp.) (2008) - ISBN 978-987-24513-5-6. Mendes, Afonso Henrique Teixeira; Almeida, Fábio Sérgio; Ferreira, Paulo Jorge Tavares; and Park, Song Won – Caracteristicas do papel reprográfico a partir de fibras de eucalipto e sua relação com estabilidade dimensional, Proc. V Congresso Iberoamericano de 12/15 Investigação em Celulose e Papel, Guadalajara – México, 20-21 (CD-ROM, 12pp.) (2008) - ISBN 978-987-24513-5-6. Antunes, Elisabete, Garcia, Fernando A.P., Ferreira, Paulo J., Rasteiro, M. Graça – The use of new branched c-pams to improve retention and drainage in papermaking, Proc. V Congresso Iberoamericano de Investigação em Celulose e Papel, Guadalajara – México, 149-151(CD-ROM, 9 pp.) (2008) - ISBN 978-987-24513-5-6. Carla A.F. Ventura, F.A.P. Garcia, P.J. Ferreira, M.G. Rasteiro – CFD simulation of the turbulent flow of pulp fibre suspensions, 2008 AIChE Annual Meeting, Philadelphia – USA, pres. 292 b (2008) - ISBN 978-0-8169-1050-2. E. Antunes, F.A.P. Garcia, P. Ferreira, M.G. Rasteiro – Correlating retention and drainage in papermaking with flocculation: effect of polyelectrolyte branching, 2008 AIChE Annual Meeting, Philadelphia – USA, pres. 484 b (2008) - ISBN 978-0-8169-1050-2. Mendes, A.H.TY., Park, S.W., Ferreira, P.J., Almeida, F.S. – Higroexpansivity of reprographic paper manufactures from eucalyptus fibres – measurement principles and results from an industrial paper machine, Proc. XVIII Congreso Internacional Acotepac Asociación Colombiana de Técnicos de la Industria de Pulpa, Papel y Cartón, Cali – Colômbia (2009). Carla A.F. Ventura, F.A.P. Garcia, P.J. Ferreira, M.G. Rasteiro – Modelling the turbulent flow of pulp suspensions, Proc. PRS 2009 – Paper Reserach Symposium 2009, Kuopio – Finland, pp 73 (CD-ROM, 12pp.) (2009). Elisabete Antunes, Fernando A.P. Garcia, Paulo Ferreira, Maria da Graça Rasteiro – Flocculation Process Modelling: Correlating Model Parameters With Retention And Drainage In Papermaking, Proc. 8th World Congress of Chemical Engineering, Montréal, Québec – Canada (2009) Ana F. Lourenço, José A.F. Gamelas, Paulo J. Ferreira – Papers coated with a modified pigment obtained by in situ synthesis of silica film on PCC, Proc. 2010 International Conference on Nanotechnology for the Forest Products Industry being Espoo – Finland (2010). C. Wandrey, H. Ahmadloo, F. Garcia, P. Ferreira, G. Rasteiro – Hydrodynamic analysis of permanently charged synthetic polyelectrolytes, Proc. 19th International AUC Conference, Nottingham – UK, September 12-16 (2010). G. V. Duarte, B.V. Ramarao, T.E. Amidon, P. T. Ferreira – Properties of Eucalyptus Globulus Fibers after Hot Water Extraction, Proc. XXI Encontro Nacional Tecnicelpa / VI Congresso Iberoamericano de Investigação em Celulose e Papel, Lisboa – Portugal, O9, p.61 (CD-ROM, 8pp.) (2010) - ISBN 978-989-20-1926-0 Pedro, Lopes, Carlos Preciso, António Mendes de Sousa, Paulo Ferreira – Sizing Evaluation of Uncoated Fine Papers, Proc. XXI Encontro Nacional Tecnicelpa / VI Congresso Iberoamericano de Investigação em Celulose e Papel, Lisboa – Portugal, O16, p.77 (CD-ROM, 8pp.) (2010) - ISBN 978-989-20-1926-0 Mikhail S. Saraiva, José A. F. Gamelas, Paulo J. Ferreira – A New Approach for the Modification of Paper Surface Properties by Polyoxometalates, Proc. XXI Encontro Nacional Tecnicelpa / VI Congresso Iberoamericano de Investigação em Celulose e Papel, Lisboa – Portugal, O26, p.97 (CD-ROM, 8pp.) (2010) - ISBN 978-989-20-1926-0 Isabel M. T. Moutinho, Margarida L. Figueiredo, Paulo J.T. Ferreira – Paper Surface Chemistry as a Tool to Improve Inkjet Printing Quality, Proc. XXI Encontro Nacional Tecnicelpa / VI Congresso Iberoamericano de Investigação em Celulose e Papel, Lisboa – Portugal, O33, p.111 (versão em CD-ROM, 8pp.) (2010) - ISBN 978-989-20-1926-0 Afonso H. T. Mendes, Song W. Park, Paulo J. Ferreira, Fabio S. Almeida – Hygroexpansivity and Dimensional Stability on a Reprographic Paper Machine, Proc. XXI 13/15 Encontro Nacional Tecnicelpa / VI Congresso Iberoamericano de Investigação em Celulose e Papel, Lisboa – Portugal, O38, p.120 (CD-ROM, 8pp.) (2010) - ISBN 978989-20-1926-0 Miguel A. Citroni, Miguel A. M. Zanuttini, Paulo Ferreira – Energía Superficial y su Relación con la Capacidad de Enlace de las Fibras Recicladas no Blanqueadas, Proc. XXI Encontro Nacional Tecnicelpa / VI Congresso Iberoamericano de Investigação em Celulose e Papel, Lisboa – Portugal, P29, p.250 (CD-ROM, 8pp.) (2010) - ISBN 978-98920-1926-0 Pinheiro I., Ferreira P., Garcia F. P., Wandrey C., Amaral L., Hunkeler D,, Rasteiro M. G. - Performance of Cationic Polyacrylamides in Papermaking - Flocculation, Drainage and Retention, Proc. XXI Encontro Nacional Tecnicelpa / VI Congresso Iberoamericano de Investigação em Celulose e Papel, Lisboa – Portugal, P44, p.283 (CD-ROM, 8pp.) (2010) - ISBN 978-989-20-1926-0 Ana F. Lourenço, José A. F. Gamelas, Pedro Faustino, Paulo J. Ferreira – Printing Quality of Papers Coated with a Modified Pigment Obtained by In Situ Synthesis of Silica Film on Pcc, Proc. XXI Encontro Nacional Tecnicelpa / VI Congresso Iberoamericano de Investigação em Celulose e Papel, Lisboa – Portugal, P45, p.285 (CD-ROM, 8pp.) (2010) - ISBN 978-989-20-1926-0 N. Gómez, C. Molleda, J.C Villar, R. Quiles, P. Ferreira – Influencia de la Composición Fibrosa y las Propiedades Estructurales del Papel Prensa en la Densidad de la Impresión y la Capacidad de Secado, Proc. XXI Encontro Nacional Tecnicelpa / VI Congresso Iberoamericano de Investigação em Celulose e Papel, Lisboa – Portugal, P46, p.289 (CDROM, 8pp.) (2010) - ISBN 978-989-20-1926-0. E. Antunes, C. Wandrey, D. Hunkeler, F. Garcia, P. Ferreira, G. Rasteiro - Particle aggregation in papermaking: correlating kinectics with polyelectrolyte characteristics, Proc. World Congress on Particle Technology 6 (2010). Ineide Pinheiro, Christine Wandrey, Paulo Ferreira, Fernando A. P. Garcia, José L. Amaral, David Hunkeler, Maria G. Rasteiro – Adsorption of Cationic Polyacrylamides on Precipitated Calcium Carbonate: Relation with Flocculation, Proc. Polyelectrolytes Conference, Xangai – China (accepted) (2011). I. Pinheiro, P. Ferreira, F. A. P. Garcia, C. Wandrey, L. Amaral, D. Hunkeler, M. G. Rasteiro – An experimental design methodology to evaluate the importance of different parameters on flocculation by polyelectrolytes, Proc. 5th International Granulation Workshop, June 20-22nd, Lausanne – Switzerland (accepted) (2011). I. Pinheiro, P. Ferreira, F. A. P. Garcia, C. Wandrey, D. Hunkeler, M. G. Rasteiro – A systematic approach to the mechanisms of flocculation by polyelectrolytes: evaluation of the influence of the flocculant structure on the adsorption stage and flocculation kinetics, Proc. European Congress on Chemical Eng. (submitted) (2011). Other publications Oliveira, P., Figueiredo, M., Velho, J., Ferreira, P. (2004) – Surface characterization of coated papers, Proc. XIX Meeting of the Portuguese Society of Chemistry, Coimbra, 219. Oral communications by invitation Ferreira, P. J. (1999) – A journey to the world of Quality, 1as Jornadas das Bibliotecas da Universidade de Coimbra, Universidade de Coimbra. 14/15 Ferreira, P. J. (1999) – Comparative studies on particle characterization, Curso de "Técnicas de Caracterização de Materiais Granulares", Instituto Pedro Nunes, Coimbra. Ferreira, P. J. (2000) – Accreditation of the LABGRAN laboratory, Ciclo de seminários "A Qualidade: intervenientes, métodos e práticas", Instituto Pedro Nunes, Coimbra. Ferreira, P.J. (2003) – Fibre characteristics and papermaking properties, Painel "Madeira e produtos derivados", Seminário "A qualidade da madeira – da produção ao produto final", SPCF – Sociedade Portuguesa de Ciências Florestais, Escola Superior Agrária de Coimbra. Ferreira, P.J. (2005) – Refining basics, Workshop sobre Refinação, Universidade da Beira Interior e Tecnicelpa, Covilhã. Ferreira, P.J. (2005) – Capacidades de producción e investigación en Celulosa y Papel en Iberoamérica – o caso de Portugal, Taller para una Acción Estratégica Regional de Celulosa y Papel en México, América Central y el Caribe, Universidade dos Andes, Mérida – Venezuela. Ferreira, P.J., Figueiredo, M.M. (2007) – Papermaking potential of portuguese eucaliptus, Seminário Madeira de eucalipto – produção e novas utilizações, SPCF – Sociedade Portuguesa de Ciências Florestais, Escola Superior Agrária de Coimbra. Posters in conferences Oliveira, P., Figueiredo, M., Velho, J., Ferreira, P. (2004) – Surface characterization of coated papers, Resumos XIX Meeting of the Portuguese Society of Chemistry, Coimbra, 219. Prizes: Best oral presentation: I. Moutinho, M. Figueiredo, P. J. Ferreira - Evaluating the surface energy of surface sized printing and writing papers, Proc. XX Encontro Nacional Tecnicelpa, Tomar, 6572 (2007). Best work developed in Portugal (Tecnicelpa Prize): Isabel M. T. Moutinho, Margarida L. Figueiredo, Paulo J.T. Ferreira – Paper Surface Chemistry as a Tool to Improve Inkjet Printing Quality, Proc. XXI Encontro Nacional Tecnicelpa / VI Congresso Iberoamericano de Investigação em Celulose e Papel, Lisboa – Portugal, O33, p.111 (versão em CD-ROM, 8pp.) (2010) - ISBN 978-989-201926-0 Coimbra, 31.01.2011 15/15