| Patents for D21C 3 - Pulping cellulose-containing materials (5,020) |
|---|
| 09/17/2009 | CA2718427A1 Method and apparatus for lignocellulose pretreatment using a super-cellulose-solvent and highly volatile solvents |
| 09/16/2009 | CN101535562A Method for an energy efficient production of cellulose pulp in a continuous digester |
| 09/16/2009 | CN101535561A Method and composition for improving fiber quality and process efficiency in mechanical pulping |
| 09/16/2009 | CN101532260A Method for pulping by cooking solid base in plant fiber |
| 09/16/2009 | CN101530759A Method for dispersing higher fatty alcohol mixture |
| 09/09/2009 | CN101525856A Control of waste paper stock micro-adhesive material by using low molecular weight and high cation substituted ratio starch |
| 09/09/2009 | CN101525605A Araboxylan degrading enzyme |
| 09/09/2009 | CN100537894C Cold-immersion mechanical pulping process for xyloid raw materials |
| 09/08/2009 | US7585387 Method for converting biomass (for example, sugarcane bagasse) to obtain soluble lignins, hemicellulose, and cellulose by using a strong oxidant solution of a combination of hypochlorite and peroxide; simple, efficient method for depolymerizing lignocellulosic materials |
| 09/03/2009 | WO2009108773A2 System and method for preextraction of hemicellulose through using a continuous prehydrolysis and steam explosion pretreatment process |
| 09/03/2009 | WO2009083652A3 Method of delignifying wood |
| 09/03/2009 | US20090221051 Xylanases, nucleic acids encoding them and methods for making and using them |
| 09/03/2009 | US20090220480 Cellulolytic enzymes, nucleic acids encoding them and methods for making and using them |
| 09/03/2009 | US20090218054 Building material for forming an architectural surface covering and method for producing the same |
| 09/03/2009 | CA2715592A1 System and method for preextraction of hemicellulose through using a continuous prehydrolysis and steam explosion pretreatment process |
| 09/02/2009 | CN101522985A Ionic liquids for solubilizing polymers |
| 09/02/2009 | CN101519856A Method for utilizing noil generated in the treatment process of long vegetable fiber for pulping and papermaking |
| 08/27/2009 | WO2009045654A3 Improved biomass pretreatment |
| 08/26/2009 | CN101514530A Method for preparing bagasse dissolving pulp by improved prehydrolysis alkaline process and product thereof |
| 08/26/2009 | CN101514529A Method for preparing bamboo dissolving pulp by improved prehydrolysis alkaline process and product thereof |
| 08/26/2009 | CN100532713C Papermaking process using enzyme-treated sludge, and products |
| 08/26/2009 | CN100532705C Method for producing paper pulp for papermaking |
| 08/25/2009 | CA2406550C Lyocell fibers having enhanced cv properties |
| 08/20/2009 | US20090205794 Method for the production of tissue paper |
| 08/20/2009 | US20090205143 Process of bleaching |
| 08/19/2009 | EP2089571A1 A method to use heat energy from black liquor |
| 08/19/2009 | CN101512066A Methods for carbonate pretreatment and pulping of cellulosic material |
| 08/19/2009 | CN100529251C Method for producing paper pulp utilizing herbal plant, crop stalk and ore powder |
| 08/13/2009 | US20090199985 Cationized PVA as a Sizing Component in Wet Chop Processing |
| 08/12/2009 | CN101503865A Method for preparing mlcrocrystalline cellulose by corps straw |
| 08/12/2009 | CN100526551C Cotton-short-fiber continuous steam-poaching method and apparatus |
| 08/06/2009 | US20090194243 Method for Treating Lignocellulosic Materials |
| 08/04/2009 | CA2440789C Method for producing pulp |
| 07/30/2009 | WO2009092749A1 Process for pretreating a lignocellulosic material with a view to producing bioethanol, and bioethanol production process |
| 07/30/2009 | CA2712315A1 Process for pretreating a lignocellulosic material with a view to producing bioethanol, and bioethanol production process |
| 07/29/2009 | EP2083117A1 Silica composition |
| 07/29/2009 | EP2082093A2 Method and composition for improving fiber quality and process efficiency in mechanical pulping |
| 07/29/2009 | CN101492892A Method for producing paper-pulp by using cotton stalk core or kendir stalk core |
| 07/29/2009 | CN101492891A Method for producing and bleaching slasher sizing with oil windmill palm empty fruit fibre |
| 07/28/2009 | US7566380 Continuous digester with fluid circulation |
| 07/23/2009 | WO2009090150A1 Silica composition |
| 07/22/2009 | CN101487195A Method for producing paper pulp used in rice paper production by broussonetia papyrifera bark through steam-exploding degumming |
| 07/21/2009 | CA2374913C Method for recovering chemicals in a process of producing kraft pulp |
| 07/16/2009 | WO2009089439A1 Delignification of lignocellulose-containing material |
| 07/15/2009 | CN100513681C Processing technique for sectional type preparing sitallization cellulose with high-temperature high pressure |
| 07/09/2009 | WO2009083652A2 Method of delignifying wood |
| 07/09/2009 | WO2009028969A9 Lignin and other products isolated from plant material, and methods and compositions therefor |
| 07/08/2009 | CN201268810Y Stalk mechanical pulping machine |
| 07/08/2009 | CN101476250A Method for producing pulp for fibre molding environment friendly wall decorative material |
| 07/08/2009 | CN100510246C Method for making paper-pulp by cold immersion for paper-making |
| 07/07/2009 | US7556713 Method and system for feeding cellulose chips to a high pressure continuous cooking system |
| 07/02/2009 | WO2009082338A1 Method for kraft pulp production where hemicelluloses are returned |
| 07/02/2009 | US20090165972 Methods for preparing alkali cellulose and water-soluble cellulose ether |
| 07/02/2009 | US20090165971 Methods for preparing alkali cellulose and water-soluble cellulose ether |
| 07/02/2009 | US20090165969 Enzymatic treatment of pulp for lyocell manufacture |
| 07/01/2009 | EP2074255A1 Ionic liquids for solubilizing polymers |
| 07/01/2009 | CN101469524A Technology for papermaking by using tree root |
| 07/01/2009 | CN100507144C Method for making paper pulp by using hydrogen peroxide and alkali substance reaction together |
| 06/30/2009 | US7553394 Method for removing potassium from ash produced in a kraft pulping process recovery boiler using a Na-type cation exchange organic resin |
| 06/30/2009 | CA2406517C Alkaline pulp having low average degree of polymerization values and method of producing the same |
| 06/24/2009 | CN101466891A Method for the production of tissue paper |
| 06/24/2009 | CN101466890A Method for producing fibrous material |
| 06/24/2009 | CN101466889A Lignocellulosic fibrous material made of wood |
| 06/18/2009 | US20090155413 Enzyme |
| 06/18/2009 | US20090155238 Xylanases, nucleic acids encoding them and methods for making and using them |
| 06/17/2009 | EP2069406A2 Advanced biorefinery process |
| 06/17/2009 | CN101457494A Production method of bamboo chemical dissolving pulp |
| 06/17/2009 | CN100500988C Process of preparing chemical pulp with corn stalk peel |
| 06/17/2009 | CN100500987C Low pressure blast pulping method in palm fiber |
| 06/14/2009 | CA2643780A1 A method and system to enhance fiber development by addition of treatment agent during mechanical pulping |
| 06/11/2009 | WO2009070955A1 Grass type unbleached paper products and production method thereof |
| 06/11/2009 | CA2731073A1 Grass type unbleached paper product and preparation method thereof |
| 06/10/2009 | EP2067793A1 Utilization of a wood hydrolysate |
| 06/10/2009 | CN101451315A Method for comprehensive utilization of grass type stalk |
| 06/10/2009 | CN101451314A Method for preparing high-hardness pulp by using grass type plants as raw materials |
| 06/10/2009 | CN101451313A Method for preparing bleached chemical pulp by using grass type plants as raw materials |
| 06/10/2009 | CN101451312A Method for preparing bleached chemical pulp by using grass type plants as raw materials |
| 06/10/2009 | CN100497810C Pulp and paper making method by continuously boiling hollow palm fruit string fiber |
| 06/10/2009 | CN100497809C Process for pulping by biochemical solvent |
| 06/04/2009 | WO2009068525A1 Utilization of a wood hydrolysate |
| 06/04/2009 | DE102007057580A1 Method for fractionation of lignocellulose containing raw material, involves breaking lignocellulose containing raw material into raw material particles |
| 06/04/2009 | CA2706993A1 Utilization of a wood hydrolysate |
| 06/03/2009 | CN101446052A Secondary decatizing method for preparing bamboo chemical dissolving pulp and application thereof |
| 06/03/2009 | CN100494562C Paper pulp production technology combining physical degradation and biological degradation |
| 06/02/2009 | US7541175 Alkaline extraction stages comprising xylanase |
| 06/02/2009 | US7540937 Method for continuous cooking |
| 05/28/2009 | WO2009067231A1 Use of polysulfide in modified cooking |
| 05/28/2009 | CA2705774A1 Use of polysulfide in modified cooking |
| 05/27/2009 | EP2061927A2 Methods for carbonate pretreatment and pulping of cellulosic material |
| 05/27/2009 | EP2061722A1 Process for producing ammonia and sulfuric acid from a stream comprising ammonium sulfate |
| 05/27/2009 | CN101440586A Paper-making method by mechanical fibration of maize straw |
| 05/27/2009 | CN101440380A Technological process for coproduction of ethanol, fibre and power generation by bamboo wood layered multi-stage conversion |
| 05/27/2009 | CN101440108A Normal atmosphere degreasing crude glycerine pretreatment method for separating wood fiber biomass components |
| 05/26/2009 | CA2418726C Cellulose production from lignocellulosic biomass |
| 05/22/2009 | WO2009063122A1 Method and equipment for decomposing biomass molecular components continuously |
| 05/21/2009 | US20090126882 Generation of active polysulphide |
| 05/20/2009 | CN101435170A Ginger terrestrial stem paper and manufacturing process thereof |
| 05/20/2009 | CN101435167A Cotton stalk non-chlorine bleaching and cleaning pulping process |
| 05/20/2009 | CN101435166A Pulping process mixed with wood chips |
| 05/20/2009 | CN101435165A Two-step isolation type full non-chlorine full cotton stalk bleaching pulp cleaning production process |