D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters

Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265)
11/2011
11/23/2011	CN102251421A Method for producing dissolving pulp from bamboo
11/23/2011	CN101806005B Paper pulp making method capable of reducing large amount of waste liquid and lowering consumption of materials
11/22/2011	CA2481447C White pitch deposit treatment
11/17/2011	WO2011141877A1 A process for the production of a composition comprising fibrillated cellulose and a composition
11/17/2011	WO2011141692A1 Freeness of paper products
11/17/2011	WO2011113126A3 Process for producing modified cellulose pulps, cellulose pulp thus obtained and use of biopolymer for producing cellulose pulps
11/17/2011	CA2800647A1 A process for the production of a composition comprising fibrillated cellulose and a composition
11/17/2011	CA2798917A1 Freeness of paper products
11/16/2011	EP2386683A1 Process for the production of gel-based composite materials
11/16/2011	EP2386682A1 Process for the manufacture of structured materials using nano-fibrillar cellulose gels
11/16/2011	CN102242521A Method for preparing pulp by gramineous straw and use of obtained pulp
11/16/2011	CN102242514A Paper pulp high density bleaching method
11/16/2011	CN102242512A Environmentally-friendly paper making and pulping technique and system with high yield
11/16/2011	CN101583759B New composition and process for the treatment of fibre material
11/16/2011	CN101171386B Chlorine dioxide treatment composition and method
11/10/2011	US20110272109 Method and system for pulp processing using cold caustic extraction with alkaline filtrate reuse
11/09/2011	EP2384365A2 Improvement of enzymatic hydrolysis of pretreated lignocellulose-containing material with dissolved air flotation sludge
11/09/2011	CN102234949A Bamboo dissolved pulp manufacturing process capable of reducing discharge of adsorbable organic halides (AOX) and dioxin
11/09/2011	CN101805933B Method for preparing apocynum venetum regenerated fibers
11/08/2011	US8052839 Rotating surface on which a pulp web is formed; feed; discharge; remove filtrates; especially well suited for washing pulp; sulfate pulp industry; liquid removed; pulp washed after digestion and between and after bleaching stages; remarkable space saving; reduced number of apparatus; decrease expenses
11/08/2011	CA2512906C Method for washing pulp in a bleaching line and a bleaching line
11/03/2011	WO2011134939A1 Process for the manufacture of structured materials using nano-fibrillar cellulose gels
11/03/2011	WO2011134938A1 Process for the production of gel-based composite materials
11/03/2011	US20110265964 Process in a (D) stage bleaching of softwood pulps in a presence of Mg(OH)2
11/03/2011	CA2796135A1 Process for the manufacture of structured materials using nano-fibrillar cellulose gels
11/03/2011	CA2796132A1 Process for the production of gel-based composite materials
11/02/2011	CN102230291A Method for removing fluorescent substance in waste paper pulp
11/02/2011	CN102230290A High-concentration steaming and rinsing integrative storage reaction bin
11/02/2011	CN102230288A Straw bio-enzyme degradation aid and degradation pulping process
11/02/2011	CN102230286A Process for manufacturing bamboo dissoluble pulp without discharging AOX and dioxin
11/01/2011	US8048264 Composition and process for the treatment of fibre material
11/01/2011	US8048263 Four stage alkaline peroxide mechanical pulpings
11/01/2011	US8048262 Rapid fatty acid assay for use in pulp pitch control
10/2011
10/28/2011	CA2737709A1 Pulp bleaching and alkaline extraction method
10/27/2011	WO2011131843A1 The use of acidic water in the manufacture of paper
10/27/2011	WO2011110745A3 A method and a reactor for mixing one or more chemicals into a process liquid flow
10/27/2011	CA2794128A1 The use of acidic water in the manufacture of paper
10/26/2011	EP2379195A1 Method and arrangement for fixing an endless wire
10/26/2011	CN202017154U Double-roll pulp washer
10/26/2011	CN202017153U Filtering roller for double-roller pulp washer
10/26/2011	CN102227245A Method and arrangement for fixing endless wire
10/26/2011	CN102226320A Method for producing bleached dissolving pulp for viscose fibers through denaturation of uncolored unbleached dissolving pulp
10/26/2011	CN101591864B Environment friendly pulping process
10/26/2011	CN101451325B Low brightness pulp prepared by alkaline steam cooking wheat straw raw material, preparation method and use thereof
10/26/2011	CN101245565B Zero discharge clean method for producing corn cane man-made fiber pulp, xylitol
10/26/2011	CN101171389B Ligno cellulosic materials and the products made therefrom
10/25/2011	US8044013 Complex of manganese, titanium, nickel, copper, cobalt, iron and ligands
10/19/2011	EP2377992A1 Highly refined fiber mass, process of their manufacture and products containing the fibers
10/19/2011	CN102220720A Auxiliary vacuum unit of vacuum pulp washer and method for increasing vacuum degree
10/19/2011	CN102220719A Corncob bark pulp for chemical fiber and preparation method thereof
10/19/2011	CN101545226B Method for improving bagasse alkaline cooking effect through wet process with CEH bleaching waste liquor
10/13/2011	WO2011066935A3 Bleach catalyst compounds, method for the production thereof and use thereof
10/12/2011	EP1086211B1 Novel mannanases
10/12/2011	CN102212979A High-concentration pulp bleaching device
10/12/2011	CN101305127B A new pulp and process for pulping
10/06/2011	US20110240238 Process of bleaching hardwood pulps in a D1 or D2 stage in a presence of a weak base
10/05/2011	EP2370630A2 Use of a phyllosilicate-based composition for producing paper, phyllosilicate composition and method for producing the same
10/05/2011	CN202000191U High-compression-ratio helical squeezing water extractor
10/05/2011	CN202000190U Novel sealed vacuum device for washing machine
10/05/2011	CN202000189U Novel washing device for increasing dust removal rate of pulping grass type raw materials
10/05/2011	CN102206929A Volumetric intermittent rinsing device and new method for pulping by using same
10/05/2011	CN101838943B Knot energy-saving environment-friendly pulping method and equipment
10/04/2011	US8030039 Method for the production of fermentable sugars and cellulose from lignocellulosic material
09/2011
09/29/2011	WO2011119423A2 Improved bctmp filtrate recycling system and method
09/29/2011	US20110237485 Chrysosporium Cellulase and Methods of Use
09/29/2011	US20110236339 Perhydrolase providing improved specific activity
09/29/2011	US20110236338 Perhydrolase providing improved specific activity
09/29/2011	US20110236337 Perhydrolase providing improved specific activity
09/29/2011	US20110236336 Perhydrolase providing improved specific activity
09/29/2011	US20110236335 Perhydrolase providing improved specific activity
09/29/2011	US20110232853 BCTMP Filtrate Recycling System and Method
09/29/2011	CA2793941A1 Improved bctmp filtrate recycling system and method
09/28/2011	CN201990891U 软化漂白锅 Softening bleach pot
09/28/2011	CN101760977B High-consistency paper pulp bleaching tower bottom discharger
09/27/2011	US8025762 Cooking aid for improving the removal of extractives in pulp production, its production and use
09/27/2011	US8025761 Method for degassing and supplying a fibrous suspension to a headbox or a filter device and degassing device
09/27/2011	CA2658971C Improved compositions and processes for paper production
09/27/2011	CA2456143C Seal at press rollers
09/22/2011	WO2011113998A1 Method for improving the properties of a paper product and forming an additive component and the corresponding paper product and additive component and use of the additive component
09/22/2011	WO2011113126A2 Process for producing modified cellulose pulps, cellulose pulp thus obtained and use of biopolymer for producing cellulose pulps
09/22/2011	WO2011113119A1 Process for the treatment of cellulose pulps, cellulose pulp thus obtained and use of biopolymer for treating cellulose pulps
09/22/2011	US20110230570 Mask pack comprising cosmetic cotton-like material prepared from paper mulberry
09/22/2011	US20110229586 Control of development of biofilms in industrial process water
09/22/2011	US20110226429 Enhanced fiber additive; and use
09/22/2011	CA2793557A1 Process for producing modified cellulose pulps, cellulose pulp thus obtained and use of biopolymer for producing cellulose pulps
09/21/2011	EP2134820B1 Process for drying and purifying a particulate cellulose/plastic waste mixture
09/21/2011	EP1581692B1 Amino-functionalized pulp fibers
09/21/2011	CN102197175A Apparatus and method for dewatering cellulose pulp with improved dewatering efficiency
09/21/2011	CN102197174A Method for manufacturing papermaking pulp
09/21/2011	CN102191708A Method for carrying out elemental chlorine free (ECF) multistage bleaching on masson pine kraft pulp by using glyoxal
09/21/2011	CN101701214B Xylanase XYNA4 with wide pH applicability and gene and application thereof
09/21/2011	CN101597871B Paper pulping bleaching and waste water purification integration technology
09/21/2011	CN101525857B Method and device for evenly distributing fluid medium
09/21/2011	CN101426975B Process for treating a cellulose-lignin pulp
09/21/2011	CN101200862B Clean pulping process
09/20/2011	CA2540618C Cross-linked cellulose fibers and method of making same
09/20/2011	CA2493758C Method of deinking
09/15/2011	WO2011110745A2 A method and a reactor for mixing one or more chemicals into a process liquid flow
09/15/2011	WO2011110742A1 A method and apparatus for mixing various flows into a process liquid flow
09/15/2011	CA2787347A1 A method and apparatus for mixing various flows into a process liquid flow

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