Influence of alkali charge on hexenuronic acid formation and pulping efficiency for Lo-Solids® cooking of eucalyptus

TAPPI Fall Technical Conference

Volumn , Issue , 2004, Pages 93-105

  De Almeida, Fábio Sérgio ^a   Da Silva Júnior, Francides Gomes ^b  

^a NSK Brasil Ltd   (Brazil)

^b UNIVERSITY OF SÃO PAULO   (Brazil)

Author keywords

Alkali charge; Carbohydrates; Eucalyptus; Hardwood; Hexenuronic acids; Kappa number; Kraft pulping; Lo Solids pulping; Polysaccharides; Pulping; Selectivity; Viscosity; Wood density; Yield

Indexed keywords

CARBOHYDRATES; DISSOLUTION; HARDWOODS; KRAFT PULP; ORGANIC ACIDS; SODIUM COMPOUNDS; VISCOSITY;

ALKALI CHARGE; HEXANURONIC ACIDS; KAPPA NUMBERS; LO-SOLIDS PUMPING;

PULP COOKING;

CARBOHYDRATES; CHEMICAL PULPING; DIGESTION; DISSOLVING; EUCALYPTUS; KRAFT PULPS; SODIUM COMPOUNDS; UNBLEACHED PULPS; VISCOSITY;

EID: 22144442096     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (6)

1. - JIANG, Z.H.; LIEROP, B.V.; BERRY, R. Hexenuronic acid groups in pulping and bleaching chemistry. Tappi Journal, 2000, Vol. 83, No.1, 9p.
2. - LI, J.; GELLERSTEDT, G. The contribution to kappa number from hexeneuronic acid groups in pulp xylan, Carbohydrate Research 302, pp213-180, 1997.
3. - CHAI, X.S.; ZHU, J.Y.; LI, J. A simple and rapid method to determine hexenuronic acid groups in chemical pulp. Journal of pulp and Paper Science 27 (5): 165-169. Atlanta. 2001
4. - WEHR, T.F.A. Variações nas caracteristicas da madeira de E. grandis Hill ex maiden e suas influências na qualidade de cavacos em cozimento kraft. Piracicaba, 1991. 84p. Dissertação (Mestrado) - Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo.
5. - GIDNERT, E.B.; TOMAI, P.E.; DAHLMAN, O. Influence on pulp quality of conditions during the removal of hexenuronic acids. Nordic Pulp and Paper Research Journal, 1998, Vol. 13, 7p.
6. - CHAKAR, F.; ALLISON, L.; RAGAUSKAS, T.; MCDONOUGH, J.; SEZZI, U. Influence of hexenuronic acids on U. S. bleaching operations. Tappi Journal, 83 (11), 2000.