| Patents for D21C 3 - Pulping cellulose-containing materials (5,020) |
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| 09/26/2013 | WO2013141687A1 Pulp composition, pulp article(s) and preparation process thereof |
| 09/26/2013 | WO2013141686A1 Pulp article(s) comprising protease and preparation process thereof |
| 09/26/2013 | US20130248128 Process for decomposing lignin in biomass |
| 09/26/2013 | US20130248127 Method and arrangement for measuring and controlling chip and/or liquid level |
| 09/24/2013 | US8541220 Isomerases, nucleic acids encoding them and methods for making and using them |
| 09/19/2013 | WO2013135965A1 Preparation of levulinic acid |
| 09/18/2013 | CN103306153A Method for co-producing dissolving pulp and lignin through bagasse pith |
| 09/11/2013 | CN101903590B Method for kraft pulp production where hemicelluloses are returned |
| 09/10/2013 | US8529731 Process for fractionating sugarcane bagasse into high α-cellulose pulp, xylan and lignin |
| 09/06/2013 | WO2013128196A1 Cellulose platelet compositions, methods of preparing cellulose platelet compositions and products comprising same |
| 09/04/2013 | CN103276617A Oxygen alkaline pulping cooking device |
| 09/03/2013 | US8524474 Process for producing a concentrated sugar solution by enzymatic saccharification of polysaccharide enriched biomass |
| 09/03/2013 | US8524037 Continuous digestion of chip blends containing a western red cedar chip furnish |
| 09/03/2013 | CA2668158C Method and composition for improving fiber quality and process efficiency in mechanical pulping |
| 08/28/2013 | CN1809630B Isolation and use of decay fungi |
| 08/28/2013 | CN103270214A A method of controlling a pulping process in a feed-forward manner |
| 08/28/2013 | CN103266517A Technology for pulping broussonetia papyrifera white barks by using phosphoric acid pretreatment and magnesiumsulfite process |
| 08/28/2013 | CN102433785B Bamboo displacement cooking process |
| 08/28/2013 | CN101861426B Use of polysulfide in modified cooking |
| 08/22/2013 | WO2013122917A1 Methods for detoxifying a lignocellulosic hydrolysate |
| 08/21/2013 | CN103261514A Process for delignification and bleaching of paper pulp by using activated hydrogen peroxide |
| 08/21/2013 | CN103255661A Preparation method of straw pulp |
| 08/21/2013 | CN103254318A Method for preparing sodium carboxymethyl cellulose from straws |
| 08/21/2013 | CN102365405B Method and arrangement for wash after completed digestion in a continuous digester for the production of cellulose pulp |
| 08/21/2013 | CN102268833B Method for preparing dissolving pulp by carrying out steam explosion on crop straw and adopting prehydrolysis for sulfate |
| 08/20/2013 | US8512512 System and method for preextraction of hemicellulose through using a continuous prehydrolysis and steam explosion pretreatment process |
| 08/20/2013 | CA2720393C Simplified method for digestion of cellulosic biomass |
| 08/20/2013 | CA2539500C Materials useful in making cellulosic acquisition fibers in sheet form |
| 08/15/2013 | WO2013119977A1 Method of digesting lignocellulosic material |
| 08/14/2013 | CN103243598A Pulping method for increasing extraction ratio of black liquor |
| 08/14/2013 | CN103243596A Acetate-grade pulp and preparation method thereof |
| 08/14/2013 | CN102493243B Papermaking and pulping method capable of obtaining black liquor at high concentration |
| 08/14/2013 | CN102174399B Method for preparing herbal biological fiber and biological paper pulp |
| 08/14/2013 | CN101275374B Pulp cleaning agent, pulp manufacturing method and pulp cleaning method |
| 08/07/2013 | CN103233384A Manufacturing method of silk paper |
| 08/07/2013 | CN103233383A Production process of purified cotton with super-high viscosity |
| 08/07/2013 | CN103233381A High efficiency composite precipitating agent and method for extracting cellulose |
| 07/31/2013 | CN103225235A Anti-myopia paper, as well as preparation method and application thereof |
| 07/30/2013 | US8497410 Method for making absorbent products |
| 07/30/2013 | US8496782 Methods for preparing alkali cellulose and water-soluble cellulose ether |
| 07/25/2013 | WO2013107948A1 Method for preprocessing lignocellulosic biomass with a hydrated inorganic salt, including a preliminary acid hydrolysis step |
| 07/25/2013 | WO2013107947A1 Method for pretreating lignocellulosic biomass with a hydrated inorganic salt to obtain a cellulosic fraction and a hemicellulosic fraction |
| 07/24/2013 | CN103215834A Energy-saving environment-friendly continuous cooking process |
| 07/24/2013 | CN102352572B Preparation method for bamboo wood dissolving pulp |
| 07/24/2013 | CN102182087B Method for preparing nano cellulose by alkali/toluene method |
| 07/18/2013 | WO2013106703A1 A low viscosity kraft fiber having reduced yellowing properties and methods of making and using the same |
| 07/17/2013 | CN203065881U Cotton stalk pulping device |
| 07/17/2013 | CN103205912A Method for using kelp residues to prepare nano-crystalline cellulose whisker hydrosol |
| 07/16/2013 | CA2568594C Method for producing a dissovling pulp |
| 07/11/2013 | US20130178563 Processes for recovery of derivatives of native lignin |
| 07/11/2013 | US20130174993 Process of Extraction of Hemicellulose From Corn Fiber |
| 07/10/2013 | CN203049361U Pulp intermittent replacement cooking production system |
| 07/10/2013 | CN103201332A Method of dissolving lignocellulosic materials |
| 07/10/2013 | CN101120137B Method for altering the tack of materials |
| 07/04/2013 | US20130172628 Organosolv process |
| 07/04/2013 | US20130167603 Methods and systems for processing plants and converting cellulosic residue to crude bio-oils |
| 07/03/2013 | CN103184700A Preparation method for dissolving pulp used for viscose fiber through modification of chemical pulp |
| 07/02/2013 | CA2567046C Central screen |
| 06/27/2013 | WO2013070969A3 A solid or concentrated lignocellulosic hydrolysate and methods to prepare the hydrolysate from pretreated lignocellulosic biomass |
| 06/26/2013 | CN103174047A Process for refining wheat-straw pulp by hydrogen peroxide enzyme method |
| 06/26/2013 | CN102277761B Method for preparing oligosaccharide and paper pulp |
| 06/26/2013 | CN102154871B Method for pulping without producing strongly alkaline high-pollution black liquor |
| 06/25/2013 | CA2602580C Arrangement for feeding a slurry of chips and liquid |
| 06/20/2013 | US20130153163 Method of dissolving lignocellulosic materials |
| 06/19/2013 | CN103161091A Production method of full hemp hand-rolled paper |
| 06/19/2013 | CN103161089A Powder cellulose |
| 06/18/2013 | CA2651483C Methods for carbonate pretreatment and pulping of cellulosic material |
| 06/13/2013 | WO2013082735A1 Chemical mechanical pulping method |
| 06/12/2013 | CN103147331A Method for extracting biomass cellulose of lignocellulose by using imidazolium ionic liquid |
| 06/12/2013 | CN103147330A Manufacturing method for environment-friendly paper pulp |
| 06/12/2013 | CN103145236A Course bamboo fiber sewage treatment filler and preparation method thereof |
| 06/12/2013 | CN101638874B Method for preparing fiber wallboard through wet process |
| 06/06/2013 | US20130139981 Cross-linked glycerol based polymers as digestion aids for improving wood pulping processes |
| 06/06/2013 | US20130139980 Method And System For Producing Market Pulp And Products Thereof |
| 06/05/2013 | CN103132355A Papermaking stewing accessory ingredient and preparing method thereof |
| 06/05/2013 | CN103131637A Bacteria compsite inoculum used in lignin decomposition |
| 06/05/2013 | CN102493257B Masson pine dissolving pulp and production method thereof |
| 06/05/2013 | CN102016164B Feeding system comprising pumps in parallel for a continuous digester |
| 06/05/2013 | CN101235095B Method for completely dissolving lignocellulose biomass, device and application thereof |
| 06/04/2013 | CA2606543C Installation and method for producing paper pulp, lignins and sugars |
| 05/29/2013 | EP2596110A2 Method for producing sugars from lignocellulosic biomass pretreated with a mixture of hydrated inorganic salts and metal salts |
| 05/29/2013 | CN103122593A Catalytic carboxylation of cellulose fibers in a continuous process |
| 05/29/2013 | CN103122592A Method for preparing microcrystalline cellulose from waste cotton |
| 05/29/2013 | CN101260635B Physical extraction method for agriculture waste straw fibre |
| 05/28/2013 | US8449717 Method for preventing clogging in a strainer construction for a continuous digester |
| 05/28/2013 | CA2705774C Use of polysulfide in modified cooking |
| 05/23/2013 | US20130126109 Silicate Free Refiner Bleaching |
| 05/21/2013 | US8444809 Method and system for direct contact of hot liquor with wood chips in transfer circulation |
| 05/16/2013 | WO2013070969A2 A solid or concentrated lignocellulosic hydrolysate and methods to prepare the hydrolysate from pretreated lignocellulosic biomass |
| 05/16/2013 | WO2013068092A1 Use of carbonium ion scavengers in the treatment of lignocellulosic biomass |
| 05/15/2013 | EP2592185A1 Silica composition |
| 05/15/2013 | CN103109014A Process for producing modified cellulose pulps, cellulose pulp thus obtained and use of biopolymer for producing cellulose pulps |
| 05/15/2013 | CN103103844A Sodium hydroxide wheat straw normal-pressure pulping method using microwave radiation |
| 05/15/2013 | CN103103843A Plant fiber potassium-based solvent (TCF) chemical clean pulping method |
| 05/15/2013 | CN101688361B Method to remove hemicellutose from cellutosic fibres using a solution of ammonia and hydrogen peroxide |
| 05/15/2013 | CN101387087B Method and system for semi-chemical pulping |
| 05/14/2013 | US8440159 Method for extracting ammonium salt and methanol from a liquid obtained from foul condensates in a cellulose pulp mill |
| 05/14/2013 | US8440052 Method and arrangement for feeding chemicals into a pulp process stream |
| 05/10/2013 | WO2013066196A1 Method for removal of toxic waste from timber |
| 05/09/2013 | US20130112359 Product and processes from an integrated forest biorefinery |