| Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265) |
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| 02/08/2012 | EP2414435A1 Process for the production of nano-fibrillar cellulose gels |
| 02/08/2012 | EP1730348B1 A process for the treatment of fibre material and new composition |
| 02/08/2012 | CN102345241A Bleaching process of coniferous wood and deciduous wood mixed chemical pulp stewed by sulfate process |
| 02/08/2012 | CN102345227A Bleaching agent |
| 02/08/2012 | CN101967771B 一种改善纸浆漂白性能的方法 A method of improving the bleaching performance of the pulp |
| 02/01/2012 | EP2411576A1 Method and arrangement for wash after completed digestion in a continuous digester for the production of cellulose pulp |
| 02/01/2012 | EP2411498A1 Gentle bleaching agent |
| 02/01/2012 | EP2411496A1 Gentle bleaching agent |
| 02/01/2012 | EP2411495A1 Protective bleaching agent |
| 02/01/2012 | CN102337695A High-concentration double-mesh pulp extruder |
| 02/01/2012 | CN102337694A Process for bleaching needlebush and hardwood mixed chemical pulp stewed by using sodium hydroxide anthraquinone method |
| 02/01/2012 | CN102337693A Process for stewing and washing dissolving pulp |
| 02/01/2012 | CN102337688A Mixed pulp used for producing viscose fiber and its production process |
| 02/01/2012 | CN101851872B 一种用于配抄高档文化印刷纸的废纸脱墨浆的制浆方法 A copy with high-grade cultural paper printing paper for deinking pulp pulping methods |
| 02/01/2012 | CN101748642B 一种邮资票品专用防伪宣纸、邮资票品及其生产方法 A postage stamps dedicated security rice paper, postage stamps and production method |
| 01/26/2012 | WO2012012633A1 Process for preparing fluff pulp sheet with cationic dye and debonder surfactant and fluff pulp sheet made from same |
| 01/26/2012 | WO2012012316A1 Composition containing a multivalent cationic metal and amine-containing anti-static agent and methods of making and using |
| 01/25/2012 | EP2408721A1 Composition for inhibiting calcium salt scale formation |
| 01/25/2012 | CN101542041B A method and a device for the dewatering of a fibre suspension supplied by a nozzle assembly |
| 01/25/2012 | CN101451313B Method for preparing bleached chemical pulp by using grass type plants as raw materials |
| 01/19/2012 | WO2012008909A1 A method of drying a cellulose pulp web and an arrangement for drying such a web |
| 01/19/2012 | WO2012007642A1 Improved method of processing chemical pulp |
| 01/19/2012 | US20120012271 Device for Dilution of Cellulose Pulp |
| 01/19/2012 | DE112009002297T5 Verfahren und Anordnung zur Zellstoffverarbeitung Method and system for pulp processing |
| 01/18/2012 | EP2407135A2 Absorbent structures of chemically treated cellulose fibers |
| 01/18/2012 | EP2406427A1 Twin wire press |
| 01/18/2012 | EP2406183A1 Method for providing water glass for an industrial application |
| 01/18/2012 | CN202116932U Hydraulic system of pulp package pressing machine |
| 01/18/2012 | CN202116931U Oxygen delignification system |
| 01/18/2012 | CN102321990A Method for preparing bamboo pulp with full liquid phase pre-hydrolytic sulfate rapid displacement cooking |
| 01/18/2012 | CN101824764B Production process of feather-weight high-strength fireproof plaster board mask paper |
| 01/17/2012 | US8097442 Laccases, nucleic acids encoding them and methods for making and using them |
| 01/12/2012 | WO2011045740A3 Methods of photoprotecting a material against solar uv radiation using photonic particles; compositions |
| 01/11/2012 | EP2405056A1 Method for producing a pulp |
| 01/11/2012 | CN202107938U Slag discharging device of spiral dehydrator |
| 01/11/2012 | CN202107937U Screw shaft of spiral press master |
| 01/11/2012 | CN202107936U High density bleaching device for paper pulp |
| 01/11/2012 | CN202107935U High-concentration boiling and bleaching integrated storage and reaction bin |
| 01/11/2012 | CN101553617B Method and unit for seal adjustment in a washing arrangement and a washing arrangement comprising such a unit |
| 01/11/2012 | CN101457494B Production method of bamboo chemical dissolving pulp |
| 01/05/2012 | WO2012001195A1 Method for the delignification of lignocellulosic materials |
| 01/05/2012 | WO2012001145A1 Bleaching of pulp |
| 01/05/2012 | US20120000619 Arrangement, system and method for treatment of cellulose pulp |
| 01/05/2012 | CA2803541A1 Bleaching of pulp |
| 01/04/2012 | EP2402087A1 Performed transition metal catalyst salts |
| 01/04/2012 | CN202099665U Water filtering device of paper pulp dehydration device |
| 01/04/2012 | CN202099664U Bamboo pulp oxygen delignification reaction tube |
| 01/04/2012 | CN202099663U Reaction equipment of bamboo pulp two-segment oxygen delignification |
| 01/04/2012 | CN202099662U Bamboo pulp bleaching system |
| 01/04/2012 | CN202099661U Bamboo pulp bleaching equipment |
| 01/04/2012 | CN202099660U Bamboo pulp steam heater |
| 01/04/2012 | CN202099659U Mounting structure for rotor in hydraulic washing machine |
| 01/04/2012 | CN202099658U Pulp inlet reflux device for pulp washer |
| 01/04/2012 | CN202099657U Bamboo pulp washer |
| 01/04/2012 | CN202099656U Filtrate tank of bamboo pulp washer |
| 01/04/2012 | CN202099655U Bamboo pulp washing system |
| 01/04/2012 | CN202099654U Finished bamboo pulp purifying system |
| 01/04/2012 | CN102304869A High water absorbent wet-strength paper and application thereof |
| 01/04/2012 | CN101638866B Natural color paper for wiping hands and preparation method thereof |
| 01/04/2012 | CN101122101B Processes and systems for the pulping of lignocellulosic materials |
| 01/03/2012 | CA2533535C Multi-stage ap mechanical pulping with refiner blow line treatment |
| 12/29/2011 | US20110315331 Process for manufacturing pulp, paper and paperboard products |
| 12/28/2011 | EP2286028B1 Method for reduction of light-induced yellowing of lignin-containing material |
| 12/28/2011 | CN202090226U 一种滚筒脱水机 A drum dryer |
| 12/28/2011 | CN102296476A 光动力化学转化制浆技术及制浆机 Photodynamic chemical pulping technology conversion and pulp machine |
| 12/28/2011 | CN101748632B 一种纸品浆料的成浆工艺 One kind of paper pulp into pulp process |
| 12/21/2011 | EP1534892B1 Chemically cross-linked cellulosic fiber and method of making same |
| 12/21/2011 | CN102292499A 控制酶分解过氧化物的方法和其产物 Control enzymatic decomposition of peroxide in the method and product thereof |
| 12/21/2011 | CN102286893A 洗浆机 Washer |
| 12/20/2011 | US8080129 Environmentally benign TCF bleaching sequences for AS/AQ wheat straw pulp |
| 12/20/2011 | CA2330245C Cellulase producing actinomycetes, cellulase produced therefrom and method of producing same |
| 12/15/2011 | WO2011156708A1 Method of manufacturing pulp for corrugated medium |
| 12/15/2011 | CA2802237A1 Method of manufacturing pulp for corrugated medium |
| 12/15/2011 | CA2801736A1 Method for contaminant removal in paper production |
| 12/14/2011 | EP2395147A1 Freeness of paper products |
| 12/14/2011 | CN102277766A 一种浆料分选兼脱水装置 A paste sorting and dewatering device |
| 12/14/2011 | CN102277765A 一种化纤浆的制备方法 Method for preparing fiber pulp |
| 12/14/2011 | CN102277762A 利用漂白木浆板生产溶解浆的工艺 Use of dissolving pulp production process bleached pulp board |
| 12/14/2011 | CN102277759A 改性造纸级木浆生产工艺 Modified paper grade pulp production process |
| 12/13/2011 | CA2509692C Polymer composition for peroxide bleaching of cellulosic fibre material and processes for peroxide bleaching |
| 12/09/2011 | CA2707139A1 Process for reducing specific energy demand during refining of thermomechanical and chemi-thermomechanical pulp |
| 12/08/2011 | WO2011151260A1 Control of enzymes in the production of pulp |
| 12/08/2011 | CA2800849A1 Control of enzymes in the production of pulp |
| 12/07/2011 | EP2392730A1 Paper pulp composition and article formed therefrom |
| 12/07/2011 | EP1664421B1 Chemimechanical desilication of nonwood plant materials |
| 12/07/2011 | EP1592840B1 Method for washing pulp in e bleaching line |
| 12/07/2011 | CN202064224U 造纸黑液的预提取装置 Prefetch unit of black liquor |
| 12/07/2011 | CN102272315A 用溶解空气浮选淤渣改进经预处理的含木素纤维素材料的酶水解 Enzymatic hydrolysis of lignocellulose-containing material with a dissolved air flotation sludge is pre-treated to improve |
| 12/07/2011 | CN102268833A 一种农作物秸秆蒸汽爆破预水解硫酸盐法制备溶解浆的方法 One kind of crop stalks steam explosion method prehydrolysis kraft pulp prepared by dissolving legal |
| 12/07/2011 | CN102268830A 用于与漂白结合洗涤浆的方法和装置 Method and apparatus for washing and bleaching pulp for binding |
| 12/07/2011 | CN101575820B 一种纸浆金属离子去除及漂白的方法 One kind of metal ion removal and pulp bleaching methods |
| 12/07/2011 | CN101565909B 纸浆仿酶预处理少氯少污染漂白工艺 Pulp biomimetic pretreatment less pollution and less chlorine bleaching process |
| 11/30/2011 | EP2390408A1 Control of enzymes in the production of pulp |
| 11/30/2011 | CN102261020A 无氯绝缘纸生产工艺 Chlorine-free insulating paper production process |
| 11/30/2011 | CN101864686B 一种罗布麻浆的制备方法 A process for producing pulp apocynum |
| 11/30/2011 | CN101578416B 烘干箱 Drying box |
| 11/23/2011 | EP0932688B1 Chrysosporium cellulase and methods of use |
| 11/23/2011 | CN102251429A Colored kraft paper and production method thereof |
| 11/23/2011 | CN102251427A Two-stage high-efficiency bleaching method for poplar chemical-mechanical pulp |
| 11/23/2011 | CN102251422A Method for producing ultrahigh-viscosity refined cotton |