Influence the size and quality of chips in the pulping
DOI:
https://doi.org/10.5902/2236117018558Keywords:
Cellulose, Density, Delignification, PulpAbstract
The quality of the chips used in pulp production is considered an important factor for the industry operability and quality of the pulp. Desirable chips are those that have little variations in physical and chemical characteristics, free of contaminants, high bulk density, homogeneous impregnation, polysaccharides low degradation and high performance in the processing of pulp. In manufacturing the chip size classification has been adopted after studies showed that the chip very large and / or too small could interfere in the delignification process and thequality of pulp. The objective of this paper is to present the dimensions and quality of chips for pulping.Downloads
References
ASSOCIAÇÃO BRASILEIRA TÉCNICA DE CELULOSE E PAPEL. Curso de especialização em celulose: processamento da madeira. Telêmaco Borba: ABTCP/UFV,1999. 75 p.
ASSUMPÇÃO, R. M. V. et al. Polpação química. In: INSTITUTO DE PESQUISAS TECNOLÓGICAS DO ESTADO DE SÃO PAULO. Celulose e papel. São Paulo: Escola SENAI “Theobaldo de Nigris”, 1988. v. 1, p. 169- 312.
DOWNES, G. M. et al. Sampling plantation eucalypts: for wood and fibre properties. Collingwood: CSIRO, 1997. 132 p.
FULLER, W. S. Chipping, screnning and cleaning. In: KOCUREK, M. J.; STEVENS, C. F. B. (Ed.). Pulp and paper manufacture. 3rd. ed. Montreal: Canadian Pulp and Paper Association, 1983. p. 128-144.
FOELKEL, C. E. B. O processo de impregnação dos cavacos de madeira de eucalipto pelo licor Kraft de cozimento. Grau Celsius, 2009. Disponível em:<http://www.eucalyptus.com.br/eucaliptos/PT15_ImpregnaçãoCavacos.pdf>. Acesso em: 28 abr. 2010b.
FOELKEL, C. E. B. Elementos de vaso e celuloses de eucalipto. Grau Celsius, 2009. Disponível em: <http://www.eucalyptus.com.br/eucaliptos /PT04_vasos.pdf>. Acesso em: 17 abr. 2010e.
FOELKEL, CELSO. Descascamento de toras de eucaliptos. Disponível em: <http://www.remade.com.br/br/revistadamadeira_materia.php?num=1604&subject=Toras&title=Descascamento de toras de eucaliptos>. Acesso em: 07 abr. 2015.
GRACE, T. M. et al. (Ed.). Chemical reactions of wood constituints. In: GRACE, T. M. Alkaline pulping. 3rd. ed. Montreal: Canadian Pulp and Paper Association, 1989b. chap. 5, p. 23-44.
GRANDE, JOÃO PAULO, 1980- G751d Dimensões de cavacos industriais de eucalipto e relações com polpação, resistência e morfologia de fibras na polpa / João Paulo Grande. – Botucatu: [s.n.], 2012 viii, 77 f. : gráfs., tabs., fots. color.
GULLICHSEN, J.; PAULAPURO, H. (Ed.). Chemical pulping. Helsinki: Fapet Oy, 2000, v.6A, 693 p.
GUSTAFSON, R.R.; JIMENEZ, G.; MCKEAN, W.T.; CHIAN, D.S. The role of penetration and diffusion in nonuniform pulping of softwood chips. Tappi Journal, Atlanta, v.72, n.8,p.163-167, Aug.1989.
HARTLER, N. Achievement and significance of optimal chip quality. TAPPI Journal, Newton, v. 79, n. 2, p. 259-264, Feb. 1996.
MIMMS, A. et al. (Ed.) Kraft pulping: a compilation of notes. Atlanta: Tappi Press, 1993.181 p.
PARHAM, R. A. Wood defects. In: KOCUREK, M. J.; STEVENS, C. F. B. (Ed.). Pulp and paper manufacture. 3rd. ed. Montreal: Canadian Pulp and Paper Association, 1983. p. 66-79.
PROCESSO de Impregnação dos Cavacos de Madeira de Eucalipto pelo Licor Kraft de Cozimento. Disponível em: <http://www.eucalyptus.com.br/eucaliptos/PT15_ImpregnacaoCavacos.pdf>. Acesso em: 05 abr. 2015.
SMOOK, G. A. Characteristics of wood and wood pulp fibers. In: SMOOK, G. A. Handbook for pulp & paper technologists. 3rd. ed. Vancouver: Angus Wilde Publications, 2002. p. 10-19.
TAPPI Journal, Newton, v. 80, n. 6, p. 123-131, Jun. 1997 VITAL, B. R. Métodos de determinação da densidade básica.
TESSIER, P. Chip size distribution for an ultra-high-yield sulfite process. TAPPI Journal, Newton, v. 82, n. 12, p. 01-08, Apr. 2000.
TWADDLE, A. The influence of species, chip length, and ring orientation on chip thickness.
Downloads
Published
How to Cite
Issue
Section
License
![Creative Commons License](http://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png)
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
DECLARATION