Matches 1 - 12 out of 12


Match Document Document Title
US20050051288 Extended retention and medium consistency pulp treatment  
Treatment of digested or O2 delignified cellulosic pulp in a chlorine dioxide (Do) delignification stage, preceding bleaching of the pulp, at a medium pulp consistency for an extended period of...
US20140284008 MODIFIED CELLULOSE FROM CHEMICAL KRAFT FIBER AND METHODS OF MAKING AND USING THE SAME  
A modified kraft pulp fiber with unique properties is provided. The modified fiber can be a modified bleached kraft fiber that is almost indistinguishable from its conventional counterpart, except...
US20120175073 MODIFIED CELLULOSE FROM CHEMICAL KRAFT FIBER AND METHODS OF MAKING AND USING THE SAME  
A modified kraft pulp fiber with unique properties is provided. The modified fiber can be a modified bleached kraft fiber that is almost indistinguishable from its conventional counterpart, except...
US20060201642 Methods of treating chemical cellulose pulp  
A single pulp bleaching stage comprises an acid treatment, A, a neutralization treatment, n, and a chlorine dioxide treatment, D0. The AnD0 bleaching stage may optionally include washing between...
US20050028953 Methods for making carboxylated pulp fibers  
An apparatus for carboxylating wood pulp which utilizes the wood pulp bleach plant and the method of carboxylating the pulp which takes place in the bleach plant.
US20050150618 Methods of processing lignocellulosic pulp with cavitation  
Methods of treating lignocellulosic pulp with cavitation are disclosed. The methods include delignifying a slurry comprising lignocellulos pulp in the presence of cavitation and bleaching a...
US20110174451 Process for Delignifying and Bleaching Chemical Pulp  
The delignification and bleaching of chemical pulp by a bleaching stage, in which the chemical pulp is reacted first with chlorine dioxide and, after reaction of the chlorine dioxide, is further...
US20060070711 Low pH treatment of pulp in a bleach sequence to produce pulp having low D.P. and low copper number for use in lyocell manufacture  
A high pH and a low pH process for reducing the degree of polymerization of a pulp having a hemicellulose content of at least 7%. The high pH is greater than 8, and the low pH process is 2 to 8....
US20050045291 Reduction of organically bound chlorine formed in chlorine dioxide bleaching  
A reduction in AOX levels is obtained when the process conditions in the chlorine dioxide stage are elevated to above 91° C. and extended to more than 90 minutes. A major reduction of AOX up to...
US20110240238 Process of bleaching hardwood pulps in a D1 or D2 stage in a presence of a weak base  
This invention relates to an improved bleaching process for bleaching pulp comprising at least one bleaching stage which comprises treating a hardwood pulp with a bleaching agent comprising ClO2...
US20110265964 Process in a (D) stage bleaching of softwood pulps in a presence of Mg(OH)2  
This invention relates to an improved bleaching process for bleaching pulp comprising at least one bleaching stage which comprises treating a softwood pulp with a bleaching agent comprising ClO2...
US20170145632 MODIFIED CELLULOSE FROM CHEMICAL KRAFT FIBER AND METHODS OF MAKING AND USING THE SAME  
A modified kraft pulp fiber with unique properties is provided. The modified fiber can be a modified bleached kraft fiber that is almost indistinguishable from its conventional counterpart, except...

Matches 1 - 12 out of 12