Patents
Sitemap › D21 - Paper-making; Production of cellulose › D21C - Production of cellulose by removing non-cellulose substances from cellulose- containing materials; Regeneration of pulping liquors; Apparatus therefor › 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)
10/2010
10/07/2010US20100252213 Pulp and paper having increased brightness
10/07/2010CA2755493A1 Process for the production of nano-fibrillar cellulose suspensions
10/06/2010EP2236665A1 Detergent for kraft pulp and process for producing kraft pulp with the same
10/06/2010EP2236664A1 Process for the production of nano-fibrillar cellulose suspensions
10/06/2010EP2236545A1 Process for the production of nano-fibrillar cellulose gels
10/06/2010CN101851873A Manufacturing method of environment-friendly copying paper
10/06/2010CN101851872A Pulping technology for deinked waste paper pulp used for making high-grade culture printing paper
10/06/2010CN101189390B Arrangement for the treatment of cellulose pulp in a washing apparatus arranged with displaced peripheral valve seals
09/2010
09/30/2010WO2010110724A1 Method and arrangement for wash after completed digestion in a continuous digester for the production of cellulose pulp
09/30/2010WO2010108787A1 Protective bleaching agent
09/30/2010WO2010108784A1 Gentle bleaching agent
09/30/2010WO2010108783A1 Gentle bleaching agent
09/30/2010WO2010108782A1 Gentle bleaching agent
09/30/2010US20100243187 Method for Applying Chemical Additives to Pulp During the Pulp Processing and Products Made by Said Method
09/30/2010US20100243185 Apparatus and method for treatment of pulp
09/29/2010EP2231922A1 Removal of stickies from a pulp suspension, reduction of calcium compounds in reject and use of carbon dioxide in papermaking
09/29/2010EP2231921A1 An apparatus for washing and dewatering pulp
09/29/2010EP2231920A1 An apparatus for washing and dewatering pulp, a system for controlling such an apparatus, and a method for processing pulp in such an apparatus
09/29/2010EP2231919A1 An apparatus for washing and dewatering pulp
09/29/2010EP2231918A1 An apparatus for washing and dewatering pulp
09/29/2010CN101849064A Apparatus and method for treatment of pulp
09/29/2010CN101845765A Process for modifying reclaimed pulp
09/29/2010CN101446826B Advanced pulp bleaching process control system
09/29/2010CN101289819B High-pressure and overflowing washing method of paper pulp
09/29/2010CN101220565B Pulping method with zero discharge of sewage water
09/23/2010WO2010106077A1 Composition for inhibiting calcium salt scale formation
09/23/2010CA2755758A1 Composition for inhibiting calcium salt scale formation
09/22/2010CN101842533A Process for bleaching pulp
09/22/2010CN101838944A Waste paper pulp whitening method
09/22/2010CN101838943A Knot energy-saving environment-friendly pulping method and equipment
09/22/2010CN101446053B Whiten method for preparing bamboo chemical dissolving pulp and application thereof
09/22/2010CN101189387B Arrangement for the treatment of cellulose pulp in a washing apparatus adapted to facilitate service and inspection of the apparatus
09/22/2010CN101046072B Pre-treatment process for producing bleached slurry with cotton stalk material
09/21/2010CA2380100C Method and apparatus for washing fibre pulp mixture
09/16/2010WO2010102803A1 Method for providing water glass for an industrial application
09/15/2010EP2227597A1 Surface-mineralized organic fibers
09/15/2010CN101831845A Method for manufacturing thin wrapping paper by deinked pulp
09/15/2010CN101831825A Improved production method of waste paper deinking pulp
09/15/2010CN101831820A Method for producing white pine and poplar chemical and mechanical paper pulp
09/15/2010CN101213339B A roll body for a press roll
09/14/2010US7794604 Method for removing lignin from water
09/10/2010WO2010101518A1 Device in a wash press for counteracting rewetting
09/09/2010US20100226874 Biocidal compositions
09/09/2010US20100224336 Process of bleaching a wood pulp
09/09/2010US20100224333 Method and chemical composition to improve efficiency of mechanical pulp
09/08/2010EP2226414A1 Process for production of cellulose nanofiber, catalyst for oxidation of cellulose, and method for oxidation of cellulose
09/08/2010EP2225416A1 Method for converting lignocellulosic solutions having a high dry-material content
09/08/2010CN201574331U Glass fiber reinforced plastic pre-reaction tower for paper making industry
09/08/2010CN101824765A Production process of low-ration high-strength waterproof plaster board mask paper
09/08/2010CN101824764A Production process of feather-weight high-strength fireproof plaster board mask paper
09/08/2010CN101824763A System for cooking purified cottons
09/07/2010US7789997 Device for cleaning of a filter net of a pulp dryer's fan tower, a pulp dryer's fan and a pulp dryer
09/02/2010WO2010078391A3 Improvement of enzymatic hydrolysis of pretreated lignocellulose-containing material with dissolved air flotation sludge
09/01/2010EP2224059A1 Grass type unbleached paper products and production method thereof
09/01/2010EP2224055A1 Process for production of bleached pulp
09/01/2010CN101818460A Method for preparing wood dissolving pulp by modifying true color unbleached wood pulp
09/01/2010CN101818160A Application of DNA sequence in field of papermaking or textiles
08/2010
08/25/2010EP2220294A1 Method and apparatus for measuring deposition of particulate contaminants in pulp and paper slurries
08/25/2010CN101812812A Elemental chlorine free bleaching method for plant fiber stuff
08/25/2010CN101503865B Method for preparing mlcrocrystalline cellulose by corps straw
08/24/2010USRE41552 Composition for the production of improved pulp
08/24/2010US7780815 Gas free valve for pulp vacuum washer and method
08/19/2010WO2010093220A2 Method for manufacturing tissue using recovered paper from corrugated fiberboard as raw material
08/19/2010US20100206499 Methods for Producing Biomass-Based Fuel With Pulp Processing Equipment
08/18/2010CN101808980A Composition
08/18/2010CN101806008A Pulping process for obtaining non-fibrous matters in dry mode without generating water
08/18/2010CN101806005A Paper pulp making method capable of reducing large amount of waste liquid and lowering consumption of materials
08/18/2010CN101805933A Method for preparing apocynum venetum regenerated fibers
08/18/2010CN101545229B ClO2 bleaching method of bagasse pulp
08/17/2010US7776363 Suppressing microbial growth in pulp and paper
08/11/2010CN201546114U Paper pulp concentrating and extracting device
08/11/2010CN201546113U Spiral dewatering device
08/11/2010CN201546112U Inclined wire concentrating device
08/11/2010CN101802300A Device for dewatering of pulp
08/11/2010CN101802165A Biomass treatment apparatus
08/11/2010CN101801917A Composition
08/11/2010CN101798767A Environmental-protection bio-enzyme explosion pulping method
08/11/2010CN101352296B Cutlery box produced by cereal straw pulp and preparation method thereof
08/11/2010CN101260630B Straw and/ or ryegrass raw material semi-chemical pulp preparation method
08/11/2010CN101161928B Bleaching process for broussonetia papyrifera white bast bio-pulp
08/10/2010CA2418996C Process for bleaching pulp or paper
08/04/2010EP2212470A1 Deposit control
08/04/2010CN101792979A Aramid fiber paper pretreatment method for aerospace
08/03/2010CA2585892C Method of treating cellulose fibres
08/03/2010CA2539095C Chemical activation and refining of southern pine kraft fibers
07/2010
07/29/2010WO2010063475A3 Use of a phyllosilicate-based composition for producing paper, phyllosilicate composition and method for producing the same
07/29/2010WO2010010003A3 Catalysed peroxide bleach ("catalyst-bleach variant 3: all-in-one)
07/29/2010US20100186910 Four stage alkaline peroxide mechanical pulpings
07/28/2010CN101787661A Textbook paper for elementary and secondary school students and preparation method thereof
07/28/2010CN101787660A Writing paper and preparation method thereof
07/28/2010CN101787659A News printing paper and preparation method thereof
07/21/2010EP2207932A1 Apparatus and method for treatment of pulp
07/21/2010CN201530947U Double-screw pulp extruding machine
07/21/2010CN1969086B Device and method for cleaning of a filter net of a pulp dryer's fan tower, a pulp dryer's fan tower and a pulp dryer
07/21/2010CN101781862A Process for integrating pulping and bleaching by using ultrasonic wave
07/21/2010CN101525858B Waste paper deinking pulp chlorine-free bleaching method
07/21/2010CN101314926B Drawing mechanism of medium-high density bleaching column
07/21/2010CN101302728B Sisal hemp pulp and preparation thereof
07/21/2010CN101148833B Paper-making-stage reclaiming wood pulp plate denaturalization producing technique
07/20/2010US7758756 dissociating cations from their counterions by acidification, then pelletization of lignocellulose, adsorbing the cations and incubating the lignocellulose with alkaline fixing agent that catalyzes the exchange of hydrogens of the hydroxyl groups to lignocellulose adsorbing medium having positive charges
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