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EFFECT OF RESIDUAL LIGNIN AND HEXENURONIC ACIDS ON THE GENERATION OF ORGANOCHLORINES WITH CHLORINE DIOXIDE
(Editura Acad Romane, 2019-01-01)
The pulp and paper industry is one of the leading economic sectors that contribute to the contamination of the environment because of the use of organochlorine compounds, especially during the pulp bleaching process. For ...
Effect of residual lignin and hexenuronic acids on the generation of organochlorines with chlorine dioxide
(2019-01-01)
The pulp and paper industry is one of the leading economic sectors that contribute to the contamination of the environment because of the use of organochlorine compounds, especially during the pulp bleaching process. For ...
Influência do número kappa, dos ácidos hexenurônicos e da lignina no desempenho da deslignificação com oxigênio
(2006-10-25)
This study aimed at determining the effect of kappa number, lignin and hexenuronic acid contents on oxygen stage performance. Industrial brown pulps produced by the ITC and KobudoMARI cooking technologies, of kappa number ...
Influência do número kappa, dos ácidos hexenurônicos e da lignina no desempenho da deslignificação com oxigênio
(2006-10-25)
This study aimed at determining the effect of kappa number, lignin and hexenuronic acid contents on oxygen stage performance. Industrial brown pulps produced by the ITC and KobudoMARI cooking technologies, of kappa number ...
Hexenuronic acid and lignin effects on ozonolysis performance in different reaction pHs
(Soc Brasileira Quimica, 2006-09-01)
The effect of pH on the performance of the ozonolysis stage in pulp production was evaluated for conventional and acid treated brown and oxygen delignified eucalyptus kraft pulps. The objective was to determine separately ...
Reaction rates of lignin and hexenuronic acids with chlorine dioxide, ozone, and a sulfuric acid
(2008-04-01)
The reaction rates of lignin and hexenuronic acids (HexA) with chlorine dioxide, ozone, and sulfuric acid were investigated. In unbleached and oxygen-delignified eucalyptus kraft pulps containing both lignin and HexA, only ...
Hexenuronic acid removal from unbleached kraft eucalyptus pulp by peroxymonosulfuric acid
(SOC CHILENA QUIMICA, 2004)
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. ...