| Patents for D21C 1 - Pretreatment of the finely-divided materials before digesting (1,872) |
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| 06/07/2007 | WO2007063171A1 Process for producing chemi-mechanical pulp |
| 06/07/2007 | US20070125507 Process of producing high-yield pulp |
| 06/07/2007 | CA2631767A1 Process for producing chemi-mechanical pulp |
| 06/06/2007 | CN1974921A Method for producing bamboo pomace |
| 06/05/2007 | US7226756 isolated polynucleotide encoding Enzymatic proteins for use in food processing, paper making and recycling |
| 05/30/2007 | EP1789624A1 Method and arrangement for impregnation of chips |
| 05/30/2007 | CN1318690C In ball washing classifying digesting technology |
| 05/30/2007 | CN1318688C Impregnation pretreatment technology of raw material used in soda process pulp making |
| 05/18/2007 | WO2005018435A3 Thermally modified microbial-derived cellulose for in vivo implantation |
| 05/16/2007 | CN1965024A Gelled starch compositions and methods of making gelled starch compositions |
| 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 |
| 05/02/2007 | EP1778910A1 Method and arrangement for impregnating chips |
| 05/02/2007 | CN1313674C Production method of stencil tissue paper |
| 04/25/2007 | CN1952162A Method for improving straw enzymolysis efficiency by synergistic pretreatment of Steam Explosion and ultra micro-pulverization |
| 04/18/2007 | CN1950437A Methods to enhance brightness of pulp and optimize use of bleaching chemicals |
| 04/18/2007 | CN1311131C Method of manufacturing pulp using sunflower seed skin |
| 04/11/2007 | CN1944791A Environment-friendly pulping agent and process |
| 03/29/2007 | WO2005062892A3 Device and methodology for improved mixing of liquids and solids |
| 03/22/2007 | WO2007033091A2 Processes used in the manufacture of paper products |
| 03/21/2007 | EP1328679A4 Cellulose production from lignocellulosic biomass |
| 03/15/2007 | US20070056702 Arundo donax pulp, paper products and particle board |
| 03/14/2007 | CN1928220A Process for making pulp with white paper mulberry |
| 03/08/2007 | WO2006127880A3 Modified kraft fibers |
| 03/07/2007 | CN1924187A Paper making method for straw fiber pulping by 'enzymatic conversion and puffing' |
| 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 |
| 02/21/2007 | EP1753907A1 Method and apparatus for removing gas from particulated material |
| 02/15/2007 | DE102005038190A1 Calender, to satinize paper webs, has two stacks of seven rollers at an angle to each other giving the web an upward incoming path and a downward outgoing path |
| 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 |
| 02/06/2007 | US7172148 Grooved pyramid disperger plate |
| 01/31/2007 | CN1297708C Black liquid with washing graded cooking process production in ball |
| 01/25/2007 | CA2831082A1 Method and apparatus for conversion of cellulosic material to ethanol |
| 01/24/2007 | CN1900417A Pulping process for kenaf alkaline hydrogen peroxide mechanical pulping |
| 01/23/2007 | CA2174875C Method and apparatus for pulping sawdust |
| 01/17/2007 | CN1295396C Method for fabrication food wrap paper and cultural paper by using corn stalk to make chlorine-free bleached pulp |
| 01/11/2007 | CA2613717A1 Production of cellulase |
| 01/10/2007 | CN1294322C Process for preparing bamboo grout cakes used for production of secondary cellulose acetate sheets |
| 12/21/2006 | WO2005004812A3 Gelled starch compositions and methods of making gelled starch compositions |
| 12/13/2006 | EP1730227A1 Methods to enhance brightness of pulp and optimize use of bleaching chemicals |
| 12/07/2006 | WO2006128304A1 Method of continuous processing of lignocellulosic feedstocks |
| 12/07/2006 | US20060272786 Method and apparatus for removing gas from particulated material |
| 12/07/2006 | CA2610797A1 Method of continuous processing of lignocellulosic feedstocks |
| 12/03/2006 | CA2549576A1 Method and apparatus for estimating relative proportion of wood chips species to be fed to a process for producing pulp |
| 11/30/2006 | WO2006127880A2 Modified kraft fibers |
| 11/30/2006 | CA2608137A1 Modified kraft fibers |
| 11/28/2006 | CA2222694C Impregnation of fiber material |
| 11/22/2006 | CN1865583A Pulping process for mixed Devil's Rush herb and reed |
| 11/07/2006 | CA2277931C Method and device for the continuous cooking of chemical pulp |
| 11/02/2006 | US20060246570 Isolation and use of decay fungi |
| 11/02/2006 | US20060243403 Microwave pretreatment of logs for use in making paper and other wood products |
| 10/26/2006 | WO2006111604A1 Method for separating the main components of lignocellulosic materials |
| 10/26/2006 | CA2603645A1 Method for separating the main components of lignocellulosic materials |
| 10/25/2006 | EP1713825A2 Polypeptides having cellulolytic enhancing activity and polynucleotides encoding same |
| 10/18/2006 | CN1847519A Cotton stalk pulping process with high whiteness of pulp |
| 10/11/2006 | CN1844572A Biocatalytic clean pulping agent and application process thereof |
| 10/11/2006 | CN1844563A Paper pulp manufacturing process and equipment |
| 10/05/2006 | WO2006103317A1 Production of pulp using a gaseous organic agent as heating and reaction-accelerating media |
| 09/28/2006 | US20060213629 Impregnation of chips with an acid liquid prior to a sulphate pulping process |
| 09/28/2006 | CA2611859A1 Cellulases, nucleic acids encoding them and methods for making and using them |
| 09/27/2006 | CN1837458A Chemical and machinery pulping process using complete white mulberry branch as raw material |
| 09/27/2006 | CN1277021C Rice and wheat grass replacing and cooking process |
| 09/20/2006 | EP1702101A1 Batch process for preparing pulp |
| 09/20/2006 | EP1702100A2 Process for removing interfering substances in the production of mechanical pulp and process for producing mechanical pulp |
| 09/14/2006 | US20060201641 Methods for producing pulp and treating black liquor |
| 09/13/2006 | CN1274904C Whole black liqucd large liqucd rate cercal grass cooking technology with digester |
| 09/08/2006 | CA2537033A1 Methods of treating chemical cellulose pulp |
| 09/06/2006 | EP1697026A2 Device and methodology for improved mixing of liquids and solids |
| 09/06/2006 | CN1829840A Chemimechanical desilication of nonwood plant materials |
| 09/06/2006 | CN1827915A Hybrid penisetum NaOH-AQ method for pulp making, bleaching and paper forming |
| 09/06/2006 | CN1273683C Preparation process for high concentration black liquor in vertical kettle and products thereof |
| 08/31/2006 | US20060191652 Steam treatment of chips with the addition of an acid liquid |
| 08/31/2006 | US20060191651 Storing/treating cellulose pulp of medium consistancy for papermaking by inserting a pipe in the conical bottom inlet which can be withdrawn when converting the tower back to the original up-flow; pushing up or pulling down the insertion pipe can adjust the stationary stagnation zone; antifouling agent |
| 08/10/2006 | US20060175029 Batch process for preparing pulp |
| 08/09/2006 | CN1814910A Method for making paper pulp by using hydrogen peroxide and alkali substance reaction together |
| 08/03/2006 | US20060169430 Catalytic hydrolysis of wood chips; impregnating with acid, such as nitric ,and heating; low temperature depolymerization |
| 08/02/2006 | EP1604060A4 Method for producing corn stalk pulp and paper products from corn stalk pulp |
| 08/02/2006 | CN1811054A Cow dung paper pulp producing process with cow dung as material |
| 07/26/2006 | CN1809630A Isolamento e uso de fungos deteriorados |
| 07/25/2006 | US7081183 Method of deresinating pulp using alkyl alcohol alkoxylate surfactants |
| 07/19/2006 | EP0963480B1 Method and device for the continuous cooking of chemical pulp |
| 07/12/2006 | CN1263923C Supersonic chemical pretreating method for bagasse for wood-plastic composite material |
| 07/12/2006 | CN1263922C Bamboo fiber processing process |
| 07/12/2006 | CN1263921C Artificial plate wooden sheet no-bridge preheating bunker and anti-blocking method |
| 07/05/2006 | CN1796653A Quick cleaning pulping production equipment |
| 06/28/2006 | CN1793493A Environment protection pulping and papermaking method |
| 06/28/2006 | CN1793490A Process of preparing mulberry root bark pulp for producing dustless paper |
| 06/28/2006 | CN1793489A Tech. of producing mulberry root bark pulp for making viscose fibre |
| 06/28/2006 | CN1793488A Process for enzyme treating before pulping by plant fibre raw material |
| 06/21/2006 | EP1448846A4 Microwave pre-treatment of logs for use in making paper and other wood products |
| 06/21/2006 | CN1260430C Method for single section bleaching bamboo/bagasse pulp |
| 06/07/2006 | EP1664421A1 Chemimechanical desilication of nonwood plant materials |
| 06/07/2006 | EP1662976A2 THERMALLY MODIFIED MICROBIAL-DERIVED CELLULOSE FOR i IN VIVO /i IMPLANTATION |
| 06/06/2006 | CA2163494C Improvements to air injection devices in a pulp flow to effect deinking |
| 05/31/2006 | EP1360482A4 Method of selecting wood for mechanical pulping |
| 05/31/2006 | CN1779069A Continuous immersion catalytic pyrolytic circulating pulp-making method by non-steaming and boiling biochemical solvent |
| 05/26/2006 | WO2006053948A1 A method and apparatus for processing wood chips |