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)
03/2014
03/19/2014CN101333779B Processes and systems for the bleaching of lignocellulosic pulps following cooking with soda and anthraquinone
03/18/2014US8673113 Process for reducing specific energy demand during refining of thermomechanical and chemi-thermomechanical pulp
03/13/2014US20140069599 Method And Composition For Enzymatic Treatment Of Fiber For Papermaking, And Paper Products Made Therewith
03/12/2014CN103635628A Catalytic biomass conversion
03/12/2014CN103628343A Low-basis-weight compact fine soft tissue and production method thereof
03/12/2014CN103628342A Dehydration device
03/12/2014CN103628341A Dissolving-grade bamboo pulp chlorine dioxide bleaching method
03/12/2014CN102877346B Totally chlorine-free bleaching process using coniferous and broadleaf mixed sulfate chemical pulp
03/05/2014EP2703363A1 Use of ash as an alternative alkalising agent
03/05/2014EP2703361A1 Use of ash as an alternative alkalising agent
03/05/2014EP2703050A1 Use of ash as an alternative alkalising agent
03/05/2014CN203462355U Waste paper deinking machine
03/05/2014CN103614939A Pulping process method for synchronously quenching and bleaching rice straws
03/05/2014CN102816749B Xylanase, and coding gene and application thereof
03/05/2014CN102561083B Method for bleaching broadleaf wood pre-conditioning refiner chemical pretreatment alkaline peroxide mechanical pulp (P-RC APMP) by using H2O2/optical brightening agent (OBA)
02/2014
02/27/2014WO2014031737A1 Surface enhanced pulp fibers, methods of making surface enhanced pulp fibers, products incorporating surface enhanced pulp fibers, and methods of making products incorporating surface enhanced pulp fibers
02/27/2014WO2014029909A1 Method and intermediate for the production of highly refined or microfibrillated cellulose
02/27/2014WO2014029478A1 Polyester
02/27/2014WO2014029468A1 Polyester for the paper industry
02/27/2014WO2014029001A1 Purification process for partly-hydrolyzed cellulose
02/26/2014CN103608515A Method of monitoring macrostickies in recycling and paper or tissue making process involving recycled pulp
02/26/2014CN103603219A Ultrahigh-viscosity food-grade refined cotton and production method thereof
02/26/2014CN102677504B Manufacturing process of antibacterial bamboo pulp used for high-wet-modulus fibre
02/26/2014CN102635008B Technique for producing dissolving pulp from whole cotton stalks
02/19/2014CN103590277A Method for preparing nano-crystalline cellulose spheres by utilizing onionskins
02/19/2014CN101680168B Method in connection with the washing of pulp at a chemical pulp mill
02/18/2014CA2707205C Method and apparatus for measuring deposition of particulate contaminants in pulp and paper slurries
02/13/2014US20140041821 Method for dry spinning neutral and anionically modified cellulose and fibres made using the method
02/12/2014EP2694726A1 A sealing arrangement for sealing between a first drum and an end casing member
02/12/2014EP2694723A1 Lignocellulose processing
02/12/2014CN203429498U Anti-skidding and anti-blocking device
02/12/2014CN203429497U Shell of papermaking press master
02/12/2014CN103572639A Paper pulp prepared from corn stalks and preparation method of paper pulp
02/12/2014CN103572634A Preparation method of hydrogen peroxide stabilizer
02/12/2014CN103572633A Chlorine dioxide bleaching method
02/12/2014CN103572631A Preparation method of pulp for regenerating papermaking pulp into viscose staple fiber
02/12/2014CN103571801A Fermentation production method of fungal laccase and application of laccase
02/12/2014CN102444047B Method for preparing high-viscosity bagasse pulp by using oxygen and alkali cooking and ozone bleaching
02/11/2014CA2624846C Catalytic bleaching of industrial substrates
02/06/2014DE102012213769A1 Scheibenfilter Disc Filters
02/05/2014CN203420170U High-pressure spraying and cleaning device of squeezing pulp washer provided with double rollers
02/05/2014CN103556520A High-speed cleaning device for surface pulp purification
02/05/2014CN103556517A Method for improving oxygen-alkali pulping effect through laccase pretreatment
02/05/2014CN103556515A Papermaking pulping technology
02/05/2014CN103555701A Production method and application of compound enzyme liquid for paper pulp bleaching
02/04/2014US8641865 Method and system for thin chip digester cooking
02/04/2014US8641863 Catalytic carboxylation of cellulose fibers in a continuous process with multiple additions of catalyst, secondary oxidant and base to a moving slurry of cellulose fibers
01/2014
01/30/2014WO2014017912A1 Anti-cracking agent for water-borne acrylic paint and coating compositions
01/29/2014EP2689064A1 A device for adjusting a press nip
01/29/2014EP2689063A1 Method and arrangement for treating filtrate after oxygen delignification of chemical pulp cooked to a high kappa number
01/29/2014CN203411845U Helix dehydrator high-pressure water backwashing device
01/29/2014CN203411844U Continuous bleaching and washing experimentation device for pulp
01/29/2014CN103547732A A sealing arrangement for sealing between a first drum and an end casing member
01/22/2014CN203403322U Pulp extruder for papermaking industry
01/22/2014CN103534409A Process for treating cellulose and cellulose treated according to the process
01/22/2014CN103534408A Process for treating microfibrillated cellulose and microfibrillated cellulose treated according to the process
01/22/2014CN103526629A Pulping process of waste paper with high wet strength
01/22/2014CN103526626A 鼓式洗涤机洗涤鼓 Drum washing machine washing drum
01/22/2014CN103525793A Alkaline xylanase with improved heat stability, and coding gene and application thereof
01/22/2014CN102337693B Process for stewing and washing dissolving pulp
01/21/2014CA2435527C Xylanases with enhanced thermophilicity and alkalophilicity
01/16/2014WO2014009517A1 Low energy method for the preparation of non-derivatized nanocellulose
01/16/2014US20140014283 Single-step method for production of nano pulp by acceleration and disintegration of raw material
01/15/2014CN102517968B Method for preparing dissolving pulp used for viscose fiber by using mulberry twig stem core
01/08/2014CN103498381A Pineapple fiber pulp and preparation method thereof
01/08/2014CN103498376A Process in a (D) stage bleaching of hardwood pulps in a presence of Mg (OH)2
01/08/2014CN103498375A Method for pulping by broussonetia papyrifera white-bark
01/07/2014CA2608440C Process of bleaching with a preformed transition metal catalyst salt together with hydrogen peroxide
01/02/2014US20140000825 Chemical Activation and Refining of Southern Pine Kraft Fibers
01/02/2014DE10085362B3 Verfahren zur Herstellung einer Zusammensetzung für die Geruchskontrolle oder die Freisetzung eines Agens, derartige Zusammensetzung und diese umfassender Formkörper und Verfahren zur Herstellung eines Cyclodextrin umfassenden Materials A process for preparing a composition for odor control or the release of an agent, such a composition and this comprehensive body form and method of producing a cyclodextrin material comprising
01/01/2014EP2678474A1 Single-step method for production of nano pulp by acceleration and disintegration of raw material
01/01/2014CN103485228A Method for protecting carbohydrates in paper pulp oxygen bleaching process
12/2013
12/31/2013CA2658112C Hydrophobically modified poly[ethylene glycol] for use in pitch and stickies control in pulp and papermaking processes
12/27/2013WO2013191803A1 Methods of using combinations of a lipase and an oxidant for pitch control in paper making processes and products thereof
12/27/2013CA2877095A1 Methods of using combinations of a lipase and an oxidant for pitch control in paper making processes and products thereof
12/26/2013US20130340959 Methods Of Using Combinations Of A Lipase And An Oxidant For Pitch Control In Paper Making Processes And Products Thereof
12/25/2013EP2142348B1 Method for the production of bleached wood particles and wood materials ranging from light-toned to white
12/25/2013CN203360924U Dry bleaching system for lignocellulose
12/25/2013CN103469696A Kraft paper and making method thereof
12/25/2013CN103469692A Production method of renewable environment-friendly thermosensitive base paper
12/25/2013CN103469664A Green liquor flocculation and desilication method of alkali recovery working section
12/25/2013CN103469663A Method for optimization of paper pulp chlorine dioxide bleaching by response surface methodology
12/18/2013CN103459711A Method and arrangement for treating filtrate after oxygen delignification of chemical pulp cooked to a high kappa number
12/18/2013CN103451988A Method for bleaching paper pulp by using TEMPO/NaBr/NaClO oxidation system
12/12/2013WO2013183007A1 High solids content microfibrillated cellulose and manufacturing thereof
12/12/2013WO2013181760A1 Novel cell wall deconstruction enzymes of scytalidium thermophilum, myriococcum thermophilum, and aureobasidium pullulans, and uses thereof
12/11/2013CN103438678A Efficient energy-saving pulp dewatering and drying equipment
12/11/2013CN103437232A High-grade coating white paper board production process
12/11/2013CN103437227A Production method of deinked pulp and environmentally-friendly white cardboard made of deinked pulp
12/11/2013CN101842533B Process for bleaching pulp
12/05/2013WO2013178875A1 A process for the treatment of fibre material and a new composition
12/04/2013EP2668329A1 A method for the use of oxidants for microbial control under reducing conditions
12/04/2013CN203320328U Pulp bleaching tower
12/04/2013CN203315849U Vacuum collection device for multi-disc filter
12/04/2013CN103422387A Disinfecting, sterilizing and deodorizing (TCF) photocatalytic writing and painting paper and manufacturing method thereof
12/04/2013CN103422382A A method and a composition for reducing viscosity of organic contaminants in pulp processes and papermaking processes
12/04/2013CN103422380A Needlebush high-yield slurrying method
12/04/2013CN103422379A Preparation method for bagasse cellulose nanofiber membrane
12/04/2013CN103061182B Enzymatic clean production method of straw spinning pulp
12/04/2013CN102165231B Sealing arrangement and apparatus for treating cellulose pulp
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