| Patents for D21C 3 - Pulping cellulose-containing materials (5,020) |
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| 05/05/2011 | WO2011053203A1 Method and arrangement for steaming and impregnating wood chips in a down flow vessel |
| 05/05/2011 | US20110100572 Method for kraft pulp production where hemiculluloses are returned |
| 05/04/2011 | CN102046876A Simplified method for digestion of cellulosic biomass |
| 05/04/2011 | CN101575817B Method for degumming mulberry bast fiber microbe in solid state |
| 05/04/2011 | CN101575814B Method for microbial solid degumming of kenaf bast fiber |
| 05/04/2011 | CN101418289B Trichoderma reesei liquid submerged fermentation cellulase and enzymatic beating process thereof |
| 05/04/2011 | CN101250831B Method for producing cattle manure paper-pulp using cattle manure as raw material |
| 04/28/2011 | US20110094505 Acid hydrolysis process of cellulosic and lignocellulosic materials |
| 04/27/2011 | CN102037182A Feeding system comprising parallel pumps for a continuous digester |
| 04/27/2011 | CN102037181A Feeding system comprising pumps in parallel for a continuous digester |
| 04/27/2011 | CN102031714A Production method of vinegar-grade bamboo pulp |
| 04/27/2011 | CN102031713A Preparation method of sunflower seed husk pulp |
| 04/27/2011 | CN101591868B Preparation for carbon fiber paper used for gas diffusion layer of proton exchange membrane fuel cell |
| 04/21/2011 | US20110088858 Fibrous structures comprising non-naturally occurring hardwood pulp fibers |
| 04/20/2011 | EP1570042B1 Methods and systems for pretreatment and processing of biomass |
| 04/20/2011 | CN102027021A Method and apparatus for lignocellulose pretreatment using a super-cellulose-solvent and highly volatile solvents |
| 04/20/2011 | CN102021859A Paper-making pulping method by using kenaf aggregate |
| 04/20/2011 | CN101694078B Plant fiber mulching film raw material and pollution-free manufacture method thereof |
| 04/19/2011 | CA2601095C Process for the production of pulp from lignocellulosic material |
| 04/13/2011 | CN102016165A Feeding system comprising parallel pumps for a continuous digester |
| 04/13/2011 | CN102016164A Feeding system comprising pumps in parallel for a continuous digester |
| 04/13/2011 | CN102016163A Feeding system comprising parallel pumps and individual flows for a digester |
| 04/13/2011 | CN102011334A Method for pulping and making paper by using eucalyptus bark |
| 04/13/2011 | CN101718049B Clean pulping process for straws by mechanical method |
| 04/12/2011 | US7922991 Basic magnesium carbonate, production method and use of the same |
| 04/06/2011 | CN102002876A Chlorine-free and sulfur-free clean pulping method adopting grass raw materials |
| 04/06/2011 | CN102002875A Method for preparing microcrystalline cellulose by using carrot pomace |
| 04/06/2011 | CN101440108B Normal atmosphere degreasing crude glycerine pretreatment method for separating wood fiber biomass components |
| 04/06/2011 | CN101368295B Preparation method for Chinese red pine dissolving pulp |
| 04/06/2011 | CN101158121B Process for manufacturing dissolved pulp by using ethanol, sulfate and acetic acid |
| 04/05/2011 | US7919667 Absorbent products and methods of preparation thereof |
| 04/05/2011 | US7918967 Apparatus for decreasing scaling in digester systems |
| 03/31/2011 | US20110073264 Kraft-Pulping of Hot Water Extracted Woodchips |
| 03/31/2011 | US20110073263 Enhanced method for monitoring the deposition of organic materials in a papermaking process |
| 03/30/2011 | CN101644011B Totally chlorine-free clean pulping method by separation and utilization of full-stalk kenaf component |
| 03/30/2011 | CN101555667B Biorefinery method of wood fiber material |
| 03/30/2011 | CN101457503B High strength fiberboard and production method thereof |
| 03/24/2011 | US20110067829 Maintenance of sulfur concentration in kraft pulp processes |
| 03/24/2011 | US20110067828 Continuous digester system |
| 03/23/2011 | CN101988281A Pulp tableware production method |
| 03/23/2011 | CN101314924B Pulping paper-making process with zero discharge of sewage water |
| 03/17/2011 | US20110061825 Grass type unbleached paper products and production method thereof |
| 03/16/2011 | EP2294228A2 Method for pretreating plant starting material for the production, from sacchariferous and lignocellulosic resources, of bioethanol and/or of sugar, and plant |
| 03/16/2011 | EP2293876A1 Ethylene-tetrafluoroethylene phosphate composition |
| 03/10/2011 | US20110060077 Process for Manufacturing High-Performance Natural Fiber Reinforced Composites |
| 03/10/2011 | US20110056636 Method for degassing and supplying a fibrous suspension to a headbox or a filter device and degassing device |
| 03/08/2011 | US7901541 Method and arrangement for impregnating chips |
| 03/03/2011 | US20110053245 Isomerases, nucleic acids encoding them and methods for making and using them |
| 03/02/2011 | CN101476250B Method for producing pulp for fibre molding environment friendly wall decorative material |
| 02/24/2011 | US20110042022 Process of chlorine dioxide bleaching of chemical pulps using magnesium hydroxide or magnesium oxide |
| 02/24/2011 | US20110042021 Wood Composition Containing Olefins, Use of Olefins for Rendering Raw Wood Materials Water Repellent, and Method for the Production of Wood Materials |
| 02/24/2011 | US20110042020 Liquid Composition Sensor in Scaling Environment |
| 02/23/2011 | CN101781862B Process for integrating pulping and bleaching by using ultrasonic wave |
| 02/22/2011 | US7892397 Method of degumming cellulosic fibres |
| 02/16/2011 | EP1969176B1 Method for controlling a process for the production of short-fibred cellulose pulp |
| 02/15/2011 | US7887672 Method for making natural cellulosic fiber bundles from cellulosic sources |
| 02/09/2011 | CN101624799B Pulping softener and pulping method adopting same |
| 02/09/2011 | CN101530759B Method for dispersing higher fatty alcohol mixture |
| 02/09/2011 | CN101519856B Method for utilizing noil generated in the treatment process of long vegetable fiber for pulping and papermaking |
| 02/09/2011 | CN101333774B Process for making full-degradable paper mulching film for agricultural use from agronomic crop stalks |
| 02/02/2011 | CN101965424A Process for pretreating a lignocellulosic material with a view to producing bioethanol and bioethanol production process |
| 01/29/2011 | CA2710975A1 Pulper with a torque motor |
| 01/26/2011 | EP2276795A2 Processing biomass |
| 01/26/2011 | CN1997791B Method for mechanical pulp production |
| 01/26/2011 | CN1886552B Methods for producing pulp and treating black liquor |
| 01/26/2011 | CN101525856B Control of waste paper stock micro-adhesive material by using low molecular weight and high cation substituted ratio starch |
| 01/26/2011 | CN101265673B Biological paper making and pulping method |
| 01/20/2011 | WO2011007369A1 High temperature lignin separation process |
| 01/20/2011 | US20110016545 Xylanases, Nucleic Acids Encoding Them and Methods For Making and Using Them |
| 01/20/2011 | CA2767201A1 High temperature lignin separation process |
| 01/19/2011 | EP2274472A1 Simplified method for digestion of cellulosic biomass |
| 01/19/2011 | CN101671974B Sunflower stalk pulping technology |
| 01/19/2011 | CN101492891B Method for producing and bleaching slasher sizing with oil windmill palm empty fruit fibre |
| 01/18/2011 | US7871491 gives a cellulose pulp fibre with high tensile durability, tear strength and beatability; having a maintained high fluid/wood ration throughout the complete cook with essentially the same cooking fluid at the end of the cook as at its beginning, reduced retention time |
| 01/13/2011 | WO2011004855A1 Method for manufacturing calcium carbonate by causticization using fired shells |
| 01/13/2011 | US20110008850 Process for the conversion of lignocellulosic solutions containing a high proportion of dry material |
| 01/13/2011 | US20110005696 Device and method for dilution of cellulose pulp |
| 01/12/2011 | CN101220569B Pulping bleaching assistant and cold soaking pulping process |
| 01/11/2011 | US7867360 Generation of active polysulphide with manganese and bismuth catalysts |
| 01/11/2011 | US7867357 high molecular weight; stable aqueous polymer solution contains a homopolymer of acrylic acid, methacrylic acid or maleic acid, or a copolymer of acrylic acid and/or methacrylic acid with an unsaturated dicarboxylic acid; acidic pH; easily adjusted for the right pH |
| 01/06/2011 | WO2010093812A3 Methods for producing biomass-based fuel with pulp processing equipment |
| 01/05/2011 | EP2268862A1 Feeding system comprising pumps in parallel for a continuous digester |
| 01/05/2011 | EP2268861A1 Feeding system comprising pumps in parallel for a continuous digester |
| 01/05/2011 | CN101613975B Method for preparing bleached chemi-mechanical pulp for culture paper making by using cotton wood to process remainder |
| 01/05/2011 | CN101451327B Low brightness pulp prepared by alkaline steam cooking wheat straw raw material, preparation method and use thereof |
| 01/05/2011 | CN101100818B Pulping technique for straw fibre |
| 01/04/2011 | CA2387822C Fibers from plant seeds and use |
| 12/30/2010 | US20100326610 System and method for continuously treating biomass |
| 12/29/2010 | EP2265759A1 Method for an energy efficient production of cellulose pulp in a continuous digester |
| 12/29/2010 | CN101932769A Method and equipment for decomposing biomass molecular components continuously |
| 12/29/2010 | CN101929089A Wet catalytic oxidation clean pulping process and equipment for implementing same |
| 12/29/2010 | CN101929088A Waste paper pulping method |
| 12/29/2010 | CN101597870B Production process of cotton pulp for cellulose triacetate |
| 12/29/2010 | CN101235607B Method for producing natural antibacterial bamboo fiber |
| 12/23/2010 | WO2010147812A1 Alkaline peroxide treatment of rejects in an integrated neutral-alkaline paper mill |
| 12/23/2010 | WO2010147118A1 Apparatus for producing pulp and process for producing pulp |
| 12/23/2010 | US20100319862 Ionic liquid systems for the processing of biomass, their components and/or derivatives, and mixtures thereof |
| 12/22/2010 | EP1392914B1 Method and aqueous composition for the production of improved pulp |
| 12/22/2010 | CN101435164B Modified production process of paper making level sulphate wood pulp plate |
| 12/21/2010 | US7854847 a portion of the caustic (NaOH) and borate are recovered from the hemicaustic effluent streams and recycled back into the extraction process; hemicellulose in hemicaustic streams is recovered and used as feedstock in higher value end uses; nanofiltration membrane filters the hemicaustic stream |