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Temperature and effective alkali effect on brown pulp kraft cooking
(2021-01-01)
One way to obtain high quality pulp production is to improve selectivity delignification of step, maximize yield. Brown pulp yield and chemical composition were studied, with variation of temperature and effective alkali ...
A influência dos ácidos hexenurônicos no rendimento e na branqueabilidade da polpa kraft
(Soc Brasileira Quimica, 2009-01-01)
This study investigated the impact of pulp hexenuronic acids (HexAs) content on pulping yield by changing cooking reaction temperature. The bleachability of pulps containing variable amounts of HexAs was also investigated. ...
As xilanas nas propriedades de polpas marrons de eucalipto
(Ciência Rural, 2019)
KRAFT AND KRAFT/AQ PULPING FROM PREHIDROLYZED WOOD OF HYBRID Eucalyptus urophylla x grandis
(Centro Pesquisas Florestais, Ufsm, 2016-10-01)
The wood of the gender Eucalyptus occupies a prominence place among other cellulose sources due to its chemical composition, its low cost, abundance and availability. Among the chemical pulping processes, kraft process is ...
Otimização do cozimento kraft para produção de celulose a partir de madeiras de Eucalyptus globulus com diferentes teores de lignina
(Universidade Federal de Santa MariaBrasilRecursos Florestais e Engenharia FlorestalUFSMPrograma de Pós-Graduação em Engenharia FlorestalCentro de Ciências Rurais, 2002-07-04)
In this research, it was optimized the kraft pulping for pulp production
using Eucalyptus globulus woods with two different lignin contents.
Seventy-two laboratory cooking were made with wood chips obtained from
six ...
Kraft pulp from juvenile and mature woods of corymbia citriodora
(2013-05-01)
Kraft pulp produced from juvenile and mature wood from thirty-two-year-old Corymbia citriodora trees was evaluated. The stem was subdivided into regions of juvenile and mature wood, and then it was transformed into chips. ...
Kraft pulp from juvenile and mature woods of corymbia citriodora
(2013-05-01)
Kraft pulp produced from juvenile and mature wood from thirty-two-year-old Corymbia citriodora trees was evaluated. The stem was subdivided into regions of juvenile and mature wood, and then it was transformed into chips. ...