| Patents for D21C 3 - Pulping cellulose-containing materials (5,020) |
|---|
| 06/27/2007 | EP1799364A1 Method for manufacturing pulp from classified wood material |
| 06/21/2007 | WO2007070527A2 Process for treating a cellulose-lignin pulp |
| 06/21/2007 | CA2633540A1 Process for treating a cellulose-lignin pulp |
| 06/20/2007 | EP1797235A1 Improved alkaline process and system for producing pulp |
| 06/14/2007 | WO2007065241A1 A novel catalytic reactor process for the production of commercial grade pulp, native lignin and unicellular protein |
| 06/14/2007 | US20070135622 Method and apparatus for manufacturing lignophenol derivative |
| 06/14/2007 | US20070131364 Process for treating a cellulose-lignin pulp |
| 06/13/2007 | CN1981085A Methods to decrease scaling in digester systems |
| 06/13/2007 | CN1978784A Papermaking pulping process using kangnaifu environmental protection plant as raw material |
| 06/13/2007 | CN1321242C Technology for preparing ryegrass slurry by pharmaceutical soak without boiling |
| 06/12/2007 | US7229525 Methods to enhance pulp bleaching and delignification |
| 06/12/2007 | US7229524 Feeding arrangement for feeding of chips to chip bins |
| 06/07/2007 | WO2007064293A1 Method and device for the continuous cooking of pulp |
| 06/07/2007 | CA2529228A1 A novel catalytic reactor process for the production of commercial grade pulp, native lignin and unicellular protein |
| 06/06/2007 | EP1356156B1 Heat treatment of polysulphide containing white liquors |
| 06/06/2007 | EP1092059B1 Partial autocausticization of alkali liquors for wood pulping processes |
| 06/06/2007 | CN1974922A Method for producing chemical fiber pomace with fiber as raw material |
| 06/06/2007 | CN1974921A Method for producing bamboo pomace |
| 05/30/2007 | EP1789624A1 Method and arrangement for impregnation of chips |
| 05/30/2007 | CN1318690C In ball washing classifying digesting technology |
| 05/30/2007 | CN1318689C Production of paper by agricultural by-product straw and lignin modification process |
| 05/30/2007 | CN1318688C Impregnation pretreatment technology of raw material used in soda process pulp making |
| 05/24/2007 | US20070113994 Apparatus for use in recycling paper material |
| 05/23/2007 | EP1786973A1 Methods to decrease scaling in digester systems |
| 05/18/2007 | WO2007008689A3 Method for treating lignocellulosic materials |
| 05/16/2007 | CN1963017A Process for producing purified pulp |
| 05/15/2007 | US7217338 Process for continuously cooking chemical cellulose pulp |
| 05/10/2007 | WO2007051269A1 Improvements in a process for rapid acid hydrolysis of lignocellulosic material and in a hydrolysis reactor |
| 05/10/2007 | CA2613745A1 Improvements in a process for rapid acid hydrolysis of lignocellulosic material and in a hydrolysis reactor |
| 05/09/2007 | EP0977918B1 A wood delignification chemical process using ammonium magnesium bisulphite as the active reagent |
| 05/09/2007 | CN1958942A Method of ultrasound in use for producing purified pulp |
| 05/08/2007 | US7214292 Addition of THP or THP+ salt to pulping liquors to destroy catalase and/or catalase producing bacteria |
| 05/08/2007 | US7214291 Adding a treatment fluid during alkali cooking or during delignification of cellulose chips in a cellulose suspension;the treatment fluid releasing from the cellulose fibers a concentration of calcium exceeding 20 mg/l |
| 05/03/2007 | US20070095491 Arundo donax pulp, paper products, and particle board |
| 05/03/2007 | US20070095490 Using pressurized fluid withdrawn from the treatment vessel for recovery for expelling the chips from the sluice feeder and subsequently sending the previously pressurized fluid to the recovery system reduces the requirement for high pressure pumps that consume large quantities of electrical energy |
| 05/02/2007 | EP1778912A1 Central screen |
| 05/02/2007 | EP1778910A1 Method and arrangement for impregnating chips |
| 05/02/2007 | CN1955372A Method for cooking wheatgrass pulp at normal temp by microwave radiation alkali method |
| 05/02/2007 | CN1313674C Production method of stencil tissue paper |
| 04/26/2007 | US20070090209 Method for grinding water-suspended paper fibers or cellulose fibers |
| 04/18/2007 | CN1948611A Self coupled oxidation cleaning pulp making method |
| 04/18/2007 | CN1311131C Method of manufacturing pulp using sunflower seed skin |
| 04/17/2007 | US7204914 System and method for controlling a processor including a digester utilizing time-based assessments |
| 04/12/2007 | US20070079944 Product and processes from an integrated forest biorefinery |
| 04/11/2007 | CN1944791A Environment-friendly pulping agent and process |
| 04/05/2007 | WO2007017553B1 Method to decompose the natural structure of biomass |
| 04/03/2007 | US7198695 Method for separating hemicelluloses from a biomass containing hemicelluloses and biomass and hemicelluloses obtained by said method |
| 03/28/2007 | EP1766127A1 A method to destabilize foams and to prevent foaming of fatty acid and/or resin acid soap containing liquids |
| 03/28/2007 | CN1936177A Cotton-short-fiber continuous steam-poaching method and apparatus |
| 03/28/2007 | CN1936176A Clean production method for rice-wheat straw pulp capable of poaching by acetic acid method |
| 03/28/2007 | CN1936175A Pulping method using high active alkali method |
| 03/28/2007 | CN1936174A Method for separating cellulose and lignin from wooden fiber material |
| 03/22/2007 | US20070062661 Process for repulping wet-strength broke |
| 03/22/2007 | US20070062654 Treatment of wood chips using enzymes |
| 03/21/2007 | EP1764441A1 Continuous digester with fluid circulation |
| 03/21/2007 | EP1328679A4 Cellulose production from lignocellulosic biomass |
| 03/21/2007 | CN1932145A Wheat-straw biological clean pulping technology by black liquor bacterizing treatment |
| 03/21/2007 | CN1932001A Enzyme prepn for degrading plant fiber biologically and degrading and pulping process |
| 03/21/2007 | CN1306111C Use of thinnings and other low specific gravity wood for lyocell pulps method |
| 03/20/2007 | CA2300114C Method for the recovery of formic acid |
| 03/15/2007 | US20070056702 Arundo donax pulp, paper products and particle board |
| 03/08/2007 | US20070051483 Process for Bleaching Kraft Pulp |
| 03/08/2007 | US20070051481 Modified kraft fibers |
| 03/07/2007 | CN1924192A Preparation method and device of high voltage raw powder mica paper |
| 03/07/2007 | CN1924187A Paper making method for straw fiber pulping by 'enzymatic conversion and puffing' |
| 03/07/2007 | CN1302837C Method and appts. enabling fluid mixed with freely-flowing medium |
| 03/06/2007 | US7186316 Method for preparing pulp from cornstalk |
| 02/28/2007 | CN1920169A Method for making pulp with smooth cord-grass as raw materials by boiling with sodium anthraquinone |
| 02/28/2007 | CN1920168A Method of preparing pulp by anaerobic fermenting Spartina alterniflora and cooking soda, anthraquinone and fermented Spartina alterniflora |
| 02/28/2007 | CN1920167A Pulping method of non-wood-fiber enzymatic slurry |
| 02/27/2007 | US7182836 pulping, without degrading the cellulose too much; having sulfites in the presence of an alkaline component, in particular sodium hydroxide or sodium carbonate |
| 02/22/2007 | US20070039702 Purification of alkaline washing liquid |
| 02/21/2007 | EP1753908A1 Method for producing a chemical conversion pulp |
| 02/21/2007 | CN1916272A Method for blowing up pretreated APMP pulp by using bamboo as raw material |
| 02/15/2007 | WO2007017553A1 Method to decompose the natural structure of biomass |
| 02/15/2007 | WO2006116126A3 Extracting biopolymers from a biomass using ionic liquids |
| 02/15/2007 | US20070034345 Process for organosolv pulping and use of a gamma lactone in a solvent for organosolv pulping |
| 02/14/2007 | CN2869091Y Thermal-insulating reaction tank |
| 02/14/2007 | CN1912238A Method for producing black liquid by ball cleaning step cooking technology |
| 02/14/2007 | CN1912237A Pulp production technology processed by ZYB5 anaerobic white rot decomposition combine machine |
| 02/14/2007 | CN1912236A Pulp production technology processed by LYH9 brown rot decomposition combine machine |
| 02/14/2007 | CN1912235A Pulp production process technology combined of biolysis (FYR6 soft rot) and mechanical process |
| 02/14/2007 | CN1912234A Pulp production process technology of biolysis (HYH7 black rot) combined with mechanical process |
| 02/07/2007 | CN1908296A Paper making process at high yield with slurry |
| 02/07/2007 | CN1298929C Method for making Dongba paper by hand |
| 02/06/2007 | US7172677 Mixing a selected phosphonate with an aqueous digester composition to inhibit the formation, deposition and adherence of scale to metallic surfaces, particularly in commercial chemical pulp processing equipment |
| 01/31/2007 | CN1297708C Black liquid with washing graded cooking process production in ball |
| 01/24/2007 | CN1900420A Process for making pulp moulding plant fiber pot |
| 01/24/2007 | CN1296556C Environment-friendly cold soaking pulping process with broad-leaved wood material |
| 01/24/2007 | CN1296555C Biological pulping process for paper making |
| 01/23/2007 | CA2174875C Method and apparatus for pulping sawdust |
| 01/18/2007 | CA2614704A1 Method for treating lignocellulosic materials |
| 01/17/2007 | CN1295396C Method for fabrication food wrap paper and cultural paper by using corn stalk to make chlorine-free bleached pulp |
| 01/16/2007 | US7163564 Using aqueous solution containing sodium borohydride, sodium hydroxide with sodium bisulfate |
| 01/11/2007 | WO2007004757A1 Process for producing pulp utilizing bamboo and pulp and papers produced using the same |
| 01/10/2007 | CN1294322C Process for preparing bamboo grout cakes used for production of secondary cellulose acetate sheets |
| 01/04/2007 | US20070000626 Vaporization; slurrying; for producing chemical cellulose pulp from cellulose chips |
| 12/28/2006 | US20060289132 Method of preparing microfibrillar polysaccharide |
| 12/28/2006 | DE102005049231A1 Verfahren zur Behandlung eines Prozessgutes bei der Herstellung von Papier, Karton oder Pappe A process for treating a process material during the production of paper, cardboard or paperboard |
| 12/27/2006 | CN1886552A Methods for producing pulp and treating black liquor |