| Patents for D21C 3 - Pulping cellulose-containing materials (5,020) |
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| 01/20/2010 | CN100582360C Pulping paper-making method using hybrid chinese pennisetum as raw material and product |
| 01/14/2010 | US20100006246 Process for increasing bulk of a fiber product, fiber product and use thereof |
| 01/14/2010 | US20100006245 Pulp and process for pulping |
| 01/14/2010 | US20100006243 use in paper recycling; outperforms the conventional caustic deinking treatment |
| 01/13/2010 | EP2142699A1 Method of monitoring and inhibiting scale deposition in pulp mill evaporators and concentrators |
| 01/13/2010 | EP2142348A1 Method for the production of bleached wood particles and wood materials ranging from light-toned to white |
| 01/13/2010 | CN100580077C Plant fiber biological enzyme degrading agent, and degrading and pulping process |
| 01/07/2010 | US20100003234 Cellulase activity; used to make bioethanol, in food and textile treatment, in waste treatment; breaks down lignocellulose |
| 01/06/2010 | CN101619546A Apparatus for producing thermomechanical pulp and production method |
| 01/06/2010 | CN101619545A Low-temperature breaking and bleaching rapid cleaning pulping process and system configuration method |
| 12/30/2009 | CN101617081A Vapour phase digester and a method for continuous cooking |
| 12/30/2009 | CN101613971A Pulping and papermaking process and equipment |
| 12/30/2009 | CN101613970A Method for preparing bagasse dissolving pulp and pre-extracting hemicellulose and product thereof |
| 12/30/2009 | CN101613969A Pulping process for paper product pulp |
| 12/30/2009 | CN101613968A Method for eliminating pollution of closed papermaking factory |
| 12/29/2009 | US7638613 For use in the treatment of paper pulp, stable over wide temperature and pH range |
| 12/29/2009 | US7638016 Method for treating kraft pulp with optical brighteners after chlorine bleaching to increase brightness |
| 12/24/2009 | US20090314443 Method for producing fibrous material |
| 12/24/2009 | US20090314442 Manufacturing process for hybrid organic and inorganic fibre-filled composite materials |
| 12/24/2009 | DE102008029043A1 Stoffauflöser Pulper |
| 12/23/2009 | CN101608411A Process for manufacturing paper pulp by using oxidation-reduction potential water and biological enzyme |
| 12/23/2009 | CN101608410A Method for manufacturing bamboo pulp |
| 12/23/2009 | CN100572657C Wood pomace modification producing technology |
| 12/22/2009 | CA2468740C Papermaking process using enzyme-treated sludge, and products |
| 12/22/2009 | CA2450464C Four stage alkaline peroxide mechanical pulping |
| 12/17/2009 | US20090311751 Wood-rotting basidiomycetes for production of ligninolytic enzymes |
| 12/16/2009 | EP2132377A1 Method for the breakdown of lignin |
| 12/15/2009 | CA2356444C Process for oxygen pulping of lignocellulosic material and recovery of pulping chemicals |
| 12/10/2009 | US20090301673 System and a method for the steam pre-treatment of chips in association with the production of chemical cellulose pulp |
| 12/09/2009 | CN201357060Y Defoaming type stirrer of paper-making industrial brightener |
| 12/09/2009 | CN101597876A New technique of starch addition used for improving paper strength |
| 12/09/2009 | CN101597875A New technique for improving paper strength by joint gelatinization of starch and pulp |
| 12/09/2009 | CN101597871A Paper pulping bleaching and waste water purification integration technology |
| 12/09/2009 | CN101597870A Production process of cotton pulp for cellulose triacetate |
| 12/09/2009 | CN101597575A Composite strain microbial dry powder for bio-pulping and environment-friendly energy-saving type composite strain bio-pulping process |
| 12/09/2009 | CN100567632C Poplar ASGW pulping process |
| 12/02/2009 | EP2126196A1 Vapour phase digester and a method for continuous cooking |
| 12/02/2009 | EP2126195A1 Method for the production of tissue paper |
| 12/02/2009 | EP2124545A1 Hydrolysis resistant organomodified silylated ionic surfactants |
| 12/02/2009 | EP2124544A1 Hydrolysis resistant organomodified silylated ionic surfactants |
| 12/02/2009 | CN101591868A Preparation for carbon fiber paper used for gas diffusion layer of proton exchange membrane fuel cell |
| 12/02/2009 | CN101591866A Clean paper making method by kenaf |
| 12/02/2009 | CN101591864A Environment friendly pulping process |
| 12/02/2009 | CN100564665C Clean production method for rice-wheat straw pulp capable of poaching by acetic acid method |
| 11/26/2009 | WO2009140808A1 A process and system for pulping which are environmental protective, energy saving, circulating and green |
| 11/26/2009 | US20090288788 Pretreating cellulosic biomass |
| 11/25/2009 | CN101586314A Mechanical method for making pulp by extruding sunflower stems |
| 11/18/2009 | EP2118362A1 Fractionation of a lignocellulosic material |
| 11/18/2009 | CN101583758A Manufacturing method of bamboo chip for manufacturing the solubility pulp and thereof |
| 11/18/2009 | CN101581050A Method for degumming and pulping for broussonetia papyrifera bast fiber |
| 11/18/2009 | CN101581049A Method for degumming mulberry bast fiber by microbe |
| 11/18/2009 | CN101579689A Complete system of recycling treatment of city household garbage and a method thereof |
| 11/12/2009 | WO2009069143A3 Synergistic composition and a process for biobleaching of ligno cellulosic pulp |
| 11/12/2009 | US20090280105 Novel Fungal Enzymes |
| 11/11/2009 | CN101575817A Method for degumming mulberry bast fiber microbe in solid state |
| 11/11/2009 | CN101575816A Method for solar temperature raising and maintaining microbial solid degumming of bast fiber |
| 11/11/2009 | CN101575815A Method for solid degumming of broussonetia papyrifera bast fiber |
| 11/11/2009 | CN101575814A Method for microbial solid degumming of kenaf bast fiber |
| 11/10/2009 | US7615134 Method and arrangement of impregnating chips |
| 11/05/2009 | WO2009134746A1 Carbohydrates |
| 10/29/2009 | US20090266500 Process for producing tissue paper |
| 10/28/2009 | CN101568685A Method for treating ligno-cellulosic materials |
| 10/28/2009 | CN101565913A Method for producing corrugated paper with ultralow gram weight and high strength |
| 10/28/2009 | CN101565907A Bagasse alkaline pulping method by pre-extracting hemicellulose and product thereof |
| 10/28/2009 | CN101565906A Method for producing bamboo dissolving pulp by pre-extracting hemicellulose and product thereof |
| 10/22/2009 | WO2009117402A3 Methods of pretreating comminuted cellulosic material with carbonate-containing solutions |
| 10/22/2009 | WO2009108773A3 System and method for preextraction of hemicellulose through using a continuous prehydrolysis and steam explosion pretreatment process |
| 10/22/2009 | WO2009066007A3 Process for defibering a fibrous raw-material |
| 10/22/2009 | US20090264036 Nanofiber sheet, process for producing the same, and fiber-reinforced composite material |
| 10/21/2009 | CN101560739A Pulping process |
| 10/14/2009 | CN101555672A Food wrapper and manufacturing method thereof |
| 10/14/2009 | CN101555668A Paper making method taking canes, leaves and fruit stems of banana tree as raw materials |
| 10/14/2009 | CN101555667A Biorefinery method of wood fiber material |
| 10/08/2009 | WO2009124072A1 Simplified method for digestion of cellulosic biomass |
| 10/08/2009 | US20090250180 Method for Controlling a Pulping Process |
| 10/08/2009 | CA2720393A1 Simplified method for digestion of cellulosic biomass |
| 10/07/2009 | CN101553429A Process for producing ammonia and sulfuric acid from a stream comprising ammonium sulfate |
| 10/01/2009 | WO2009120141A1 Digester vessel for a continuous digester |
| 09/30/2009 | CN101545226A Method for improving bagasse alkaline cooking effect through wet process with CEH bleaching waste liquor |
| 09/30/2009 | CN101545225A Oxide synergy precipitating-silica pulping method |
| 09/30/2009 | CN101545224A Hydroxide synergy precipitating-silica pulping method |
| 09/30/2009 | CN100545347C Method for paper-making pulping with CMP method |
| 09/24/2009 | WO2009117402A2 Methods of pretreating comminuted cellulosic material with carbonate-containing solutions |
| 09/24/2009 | WO2009116946A1 Feeding system comprising parallel pumps for a continuous digester |
| 09/24/2009 | WO2009116943A1 Feeding system comprising parallel pumps for a continuous digester |
| 09/24/2009 | WO2009116942A1 Feeding system comprising parallel pumps and individual flows for a digester |
| 09/24/2009 | WO2009116941A1 Feeding system comprising pumps in parallel for a continuous digester |
| 09/24/2009 | WO2009116940A1 Feeding system comprising pumps in parallel for a continuous digester |
| 09/24/2009 | US20090236060 Method for vapor phase pulping with alcohol and sulfur dioxide |
| 09/24/2009 | US20090236059 Digester wash extraction by individual screen flow control |
| 09/24/2009 | CA2715012A1 Feeding system comprising pumps in parallel for a continuous digester |
| 09/24/2009 | CA2715011A1 Feeding system comprising pumps in parallel for a continuous digester |
| 09/23/2009 | CN101538814A Solid waste paper pulp and manufacturing method thereof |
| 09/23/2009 | CN101538809A A method and system to enhance fiber development by addition of treatment agent during mechanical pulping |
| 09/23/2009 | CN101538536A High-efficiency lignin degrading strain and use thereof |
| 09/23/2009 | CN100543225C Technology of manufacturing paper for daily use by caragana microphylla and salix mongolica as raw material for making pulp |
| 09/22/2009 | CA2417667C Gas phase continuous digester having an inverted top separator with liquor injection |
| 09/17/2009 | WO2009114843A1 Method and apparatus for lignocellulose pretreatment using a super-cellulose-solvent and highly volatile solvents |
| 09/17/2009 | US20090229772 mixing fibrilated fibers of cellulose, hemicelluloses and lignin with lime to form an aqueous slurry; adding CO2 to the slurry to form a bleached mechanical pulp comprising crystallized CaCO3 mechanically bonded to fiber forming coating; resistant to yellowing under light; chemithermomechanical pulp |
| 09/17/2009 | US20090229771 Method for Producing Wood Fibre Pellets |