| Patents for D21C 3 - Pulping cellulose-containing materials (5,020) |
|---|
| 05/20/2009 | CN101435164A Modified production process of paper making level sulphate wood pulp plate |
| 05/20/2009 | CN100489190C Method for producing black liquid by intraball cleaning stepwise cooking technology |
| 05/19/2009 | CA2357864C Process for continuous cooking of pulp |
| 05/14/2009 | DE102007054210A1 Verfahren zur Herstellung von Faserstoffen unter Verwendung von aufbereitetem Abwasser A method for producing fiber materials using treated waste water |
| 05/13/2009 | EP1272705B1 Method for controlling the cooking temperature in a continuous vapour phase digester |
| 05/13/2009 | CN101429735A Isolation type bleaching and cleaning production apparatus |
| 05/13/2009 | CN101429733A Bamboo wood dissolving pulp manufacturing process |
| 05/12/2009 | CA2381414C Process for preventing scaling of heat transfer surfaces |
| 05/07/2009 | WO2009056017A1 A process for comprehensive utilization of stalks of grass-type plants |
| 05/07/2009 | WO2007137127A3 Methods for carbonate pretreatment and pulping of cellulosic material |
| 05/07/2009 | US20090118452 Method to Decompose the Natural Structure of Biomass |
| 05/06/2009 | EP1328679B1 Cellulose production from lignocellulosic biomass |
| 05/06/2009 | CN101426975A Process for treating a cellulose-lignin pulp |
| 05/06/2009 | CN100485393C Separating and analyzing method for high purity cellulose without pollution |
| 04/30/2009 | WO2008011523A3 Improved compositions and processes for paper production |
| 04/30/2009 | US20090107643 Method For Mechanical Pulp Production |
| 04/30/2009 | US20090107642 Method for oxygen delignification of cellulose pulp at high pressure in several steps |
| 04/29/2009 | CN101418531A Method for preparing eucalyptus and poplar mixture material bleached chemical thermomechanical pulp |
| 04/29/2009 | CN101418527A Deinking process for waste paper |
| 04/29/2009 | CN101418289A Trichoderma reesei liquid submerged fermentation cellulase and enzymatic beating process thereof |
| 04/28/2009 | CA2390639C Process and composition for preparing a lignocellulose-based product, and the product obtained by the process |
| 04/28/2009 | CA2373490C Method for avoiding mechanical damage of pulp |
| 04/23/2009 | WO2009050336A1 Method for treating ligno-cellulosic materials |
| 04/23/2009 | CA2670040A1 Method for treating ligno-cellulosic materials |
| 04/22/2009 | CN101413226A Method for producing edible food package paper with bean peel as raw material |
| 04/21/2009 | US7520958 Modified kraft fibers |
| 04/15/2009 | EP2048281A1 Treatment vessel for straw or other light bulky material |
| 04/15/2009 | CN101408007A Two vessel reactor system and method for hydrolysis and digestion of wood chips with chemical enhanced wash method |
| 04/15/2009 | CN100478518C Method of preparing pulp by deinking ONP/OMG mixed wastepaper blended with paper making white water |
| 04/14/2009 | CA2259109C Kraft pulping process |
| 04/10/2009 | CA2639650A1 Treatment vessel for straw or other light bulky material |
| 04/09/2009 | WO2009046283A1 Apparatus and methods for treating biomass |
| 04/09/2009 | US20090090477 Feeder |
| 04/08/2009 | CN101403140A Plant fiber cleaning production and waste cyclic utilization method |
| 04/07/2009 | CA2136350C Xylanases from trichoderma reesei and methods for their production |
| 04/01/2009 | EP2042650A1 Methods to enhance pulp bleaching and delignification |
| 04/01/2009 | CN101397763A Double-support pulper and pulping process thereof |
| 04/01/2009 | CN101397762A Pulp manufacturing technology and material preprocessor |
| 03/31/2009 | US7510860 Xylanases with enhanced thermophilicity and alkalophilicity |
| 03/18/2009 | CN101387087A Method and system for semi-chemical pulping |
| 03/18/2009 | CN101387086A Non-pollution pulping technique by chemical-mechanical method |
| 03/18/2009 | CN101387085A Single vessel reactor system for hydrolysis and digestion of wood chips with chemical enhanced wash method |
| 03/17/2009 | US7503981 Removal of minerals from cellulosic biomass |
| 03/12/2009 | US20090068282 Complex of manganese, titanium, nickel, copper, cobalt, iron and ligands |
| 03/12/2009 | US20090065159 Chemical pulp treatment compositions and methods |
| 03/11/2009 | EP1836181B1 Method and devices for the continuous processing of renewable raw materials |
| 03/11/2009 | CN101381970A Method for co-producing paper pulp and fuel ethanol by wild grass on forest land |
| 03/11/2009 | CN101381967A Clean method for making paper pulp |
| 03/10/2009 | US7501043 Steam treatment of chips with the addition of an acid liquid |
| 03/05/2009 | WO2009028969A1 Lignin and other products isolated from plant material, and methods and compositions therefor |
| 03/05/2009 | US20090056890 Digester wash extraction by individual screen flow control |
| 03/05/2009 | CA2697469A1 Lignin and other products isolated from plant material, and methods and compositions therefor |
| 03/04/2009 | EP2029808A2 Method for producing fibrous material made of wood |
| 03/04/2009 | EP2029807A2 Lignocellulosic fibrous material made of wood |
| 03/04/2009 | EP2029806A2 Method for producing fibrous material |
| 03/04/2009 | CN101377061A Application of strong acidic high oxidized water in biological paper-making pulping process |
| 03/04/2009 | CN100465372C A wheat-straw biological clean pulping technology by the black liquor bacterizing treatment |
| 03/03/2009 | US7497924 Surface treatment with texturized microcrystalline cellulose microfibrils for improved paper and paper board |
| 02/26/2009 | US20090054863 Chemical activation and refining of southern pine kraft fibers |
| 02/25/2009 | EP2027330A1 Process for the production of biofuel from plant materials |
| 02/25/2009 | EP1702101B1 Batch process for preparing pulp |
| 02/25/2009 | CN101372818A Mineral superfine fibre paper pulp and manufacturing method thereof |
| 02/25/2009 | CN101372112A Method for producing bamboo fibre summer sleeping mat |
| 02/19/2009 | WO2008155639A3 A process for separating biomass components |
| 02/18/2009 | CN101368346A Method for full mulberry twigs pulping |
| 02/12/2009 | US20090041896 Use in treatment of paper pulp or animal feeds; enzyme is active over a wide range of temperature and of basic and acid pH |
| 02/12/2009 | US20090038767 Method and System for Semi-Chemical Pulping |
| 02/11/2009 | EP1546450A4 Method of deresinating pulp using alkyl alcohol alkoxylate surfactants |
| 02/11/2009 | CN101363201A Method for preparing edible fruit and vegetable dietary fiber paper |
| 02/11/2009 | CN100460595C Environment-friendly pulping agent and process |
| 02/11/2009 | CN100460594C Thinning wood and other low sprecific wood used for leiser product |
| 02/07/2009 | CA2638196A1 Method and system for semi-chemical pulping |
| 02/05/2009 | WO2009015704A1 Bleached fibrous material |
| 02/05/2009 | WO2009015699A1 Lignocellulosic fibrous material from annual plants |
| 02/05/2009 | WO2009015614A1 Method and equipment for production of glucose, ethanol, furfural, furane and lignin from renewable raw materials |
| 02/05/2009 | WO2009015556A1 Process for producing paper-making pulps from grasses and pulps obtained by the process |
| 02/05/2009 | WO2009015555A1 Grass paper pulp used by papermaking and preparation method thereof |
| 02/05/2009 | US20090032208 Processes and systems for the bleaching of lignocellulosic pulps following cooking with soda and anthraquinone |
| 02/05/2009 | DE102007036383A1 Controlling the duration of dissolving sulfite substances for high-yield fibers involves terminating solubilizing on reaching predefined correlation between quantity of raw material to be solubilized and sulfite content of sulfite solution |
| 02/05/2009 | DE102007036382A1 Lignocellulosischer Faserstoff aus Einjahrespflanzen Lignocellulosic pulp from annual plants |
| 02/05/2009 | DE102007036376A1 Gebleichter Faserstoff Bleached pulp |
| 02/03/2009 | CA2237649C Novel xylanase composition and method for production thereof |
| 01/29/2009 | US20090025893 Method and Apparatus for Determining the Total Peroxide Content of Pulp Suspension |
| 01/28/2009 | CN101353875A Hand tissue made from grass pulp and preparation thereof |
| 01/28/2009 | CN101353874A Offset printing paper made from grass pulp and preparation thereof |
| 01/28/2009 | CN101353873A Food wrapping paper made from grass pulp and preparation thereof |
| 01/28/2009 | CN101353872A Duplicating paper made from grass pulp and preparation thereof |
| 01/28/2009 | CN101353871A Natural color wiping paper and preparation thereof |
| 01/28/2009 | CN101353868A Alkaline process cooking method for preparing high-hardness pulp from gramineae plants |
| 01/28/2009 | CN101352324A Sanitary paper prepared by cereal straw pulp and preparation method thereof |
| 01/28/2009 | CN101352296A Cutlery box produced by cereal straw pulp and preparation method thereof |
| 01/22/2009 | US20090020246 Manufacturing method of mechanical pulp from cornstalk cellulose |
| 01/21/2009 | EP2017382A2 Impregnation vessel with convergence side relief and method for heat injection at convergence |
| 01/20/2009 | CA2364035C Polyester water-based defoamer |
| 01/15/2009 | WO2008109111A3 Method of preparing more digestible animal feed |
| 01/15/2009 | US20090017162 Neutral cellulase catalytic core and method of producing same |
| 01/15/2009 | US20090014138 Production of Pulp Using a Gaseous Organic Agent as Heating and Reaction-Accelerating Media |
| 01/14/2009 | EP2014827A2 Single vessel reactor system for hydrolysis and digestion of wood chips with chemical enhanced wash method |
| 01/14/2009 | CN101343844A Equipment and method for manufacturing high-density large-piece insulating paperboard |
| 01/14/2009 | CN100451235C Paper pulp manufacturing process and equipment |