| Patents for D21B 1 - Fibrous raw materials or their mechanical treatment (6,805) |
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| 03/19/2009 | WO2009034056A1 Removal of stickies from a pulp suspension, reduction of calcium compounds in reject and use of carbon dioxide in papermaking |
| 03/19/2009 | US20090071616 Method of upgrading biomass, upgraded biomass, biomass water slurry and method of producing same, upgraded biomass gas, and method of gasifying biomass |
| 03/18/2009 | CN201209229Y Energy-saving spiral feeding device |
| 03/18/2009 | CN101389808A A method for manufacturing mechanical pulp |
| 03/18/2009 | CN101387084A Method for steam blasting cellulose-containing material |
| 03/11/2009 | CN101381970A Method for co-producing paper pulp and fuel ethanol by wild grass on forest land |
| 03/11/2009 | CN101381966A Non-adhering disintegration device and disintegration method |
| 03/05/2009 | US20090062523 Method for Separating the Main Components of Lignocellulosic Materials |
| 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 | EP1320640B1 Steaming process |
| 03/04/2009 | CN201200868Y Intermittent exploding spray pulping device |
| 03/04/2009 | CN201200867Y Continuous exploding spray pulping device |
| 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 | CN101374994A Method and arrangement for feeding chemicals into a process stream |
| 02/18/2009 | CN201195813Y Intermittent steam blasting device |
| 02/18/2009 | CN201195812Y Environment friendly apparatus for pulping, preparing material and crushing grass |
| 02/18/2009 | CN101368353A Preparation method of technique paperboard |
| 02/18/2009 | CN101368346A Method for full mulberry twigs pulping |
| 02/17/2009 | CA2517228C Sluice feeder |
| 02/11/2009 | CN101365569A Manufacturing process for high performance lignocellulosic fibre composite materials |
| 02/11/2009 | CN101363201A Method for preparing edible fruit and vegetable dietary fiber paper |
| 02/10/2009 | CA2409388C A refining segment and a refining apparatus comprising a refining disc with such refining segment |
| 02/05/2009 | WO2009018469A1 System and method of preparing pre-treated biorefinery feedstock from raw and recycled waste cellulosic biomass |
| 02/05/2009 | WO2009015701A1 Method for producing fine material from fibrous material-rejects |
| 02/05/2009 | US20090032207 Process for Producing Mechanical Pulp Suitable for Paper or Cardboard Making |
| 02/05/2009 | DE102007036379A1 Verfahren zum Herstellen von Feinstoff aus Faserstoff-Rejekts A process for producing fine material from the reject-pulp |
| 02/05/2009 | DE102007036375A1 Making finer material from wood pulp, adjusts wood pulp suspension to given density and feeds it through blocking screw conveyor to grinding equipment |
| 02/04/2009 | CN101358436A Banana tree paper manufacture technique, slurry storage technique and sewage disposal technique thereof by soft chemistry method |
| 02/04/2009 | CN100458011C Method and apparatus for producing mechanical fibers |
| 01/29/2009 | US20090028373 Plant for production of paper-made part for speaker, paper-made part for speaker produced thereby, and speaker utilizing the same |
| 01/27/2009 | CA2409387C A refining segment for a rotatable refining disc, and a refining apparatus comprising a refining disc with such refining segment |
| 01/15/2009 | US20090017253 Use of waste carpet as filler |
| 01/14/2009 | EP2014826A2 Paper machine for used paper recycling apparatus |
| 01/14/2009 | EP2013409A1 Device and method for defibration of wood |
| 01/14/2009 | CN101343844A Equipment and method for manufacturing high-density large-piece insulating paperboard |
| 01/14/2009 | CN101343842A Preparation method of broussonetia papyrifera phloem fiber |
| 01/08/2009 | WO2009005441A1 Plug screw feeder for feeding cellulose pulp/chips |
| 01/08/2009 | WO2009003770A1 Process for making paper and use of an acid/base treatment in papermaking |
| 01/08/2009 | CA2691590A1 Process for making paper and use of an acid/base treatment in papermaking |
| 01/08/2009 | CA2688323A1 Plug screw feeder for feeding cellulose pulp/chips |
| 01/07/2009 | CN201176543Y Ultrasonic reactor for pulping |
| 01/07/2009 | CN201176542Y Washer for material sheet |
| 01/07/2009 | CN101341288A Process for producing chemi-mechanical pulp |
| 01/07/2009 | CN101338533A Method for producing toilet paper |
| 01/07/2009 | CN101338532A Pulping process for grinding wood pulp of cotton wood by mechanical abrader |
| 01/01/2009 | US20090000993 De-inking screen |
| 12/31/2008 | WO2009000348A1 Method of processing waste paper |
| 12/31/2008 | EP1833610B1 Method and device for processing pulp |
| 12/31/2008 | CN201172770Y Simple pulper |
| 12/31/2008 | CN101333783A Processing method of leather slurry for producing ancient xuan paper |
| 12/31/2008 | CN101333775A Method of preparing paper pulp form paper making raw material of stalk |
| 12/24/2008 | CN101328695A Production process of cotton pulp for manufacturing automobile oil-gas filter parer |
| 12/24/2008 | CN100445463C Method of preparing pulp by anaerobic fermenting Spartina alterniflora and cooking soda, anthraquinone and fermented Spartina alterniflora |
| 12/18/2008 | WO2008087337A3 Tracing paper production method |
| 12/17/2008 | CN101324036A Screen grader having untwining function |
| 12/11/2008 | US20080302491 Method for Preparing Paper Pulp From Recycled Paper Containing Contaminants |
| 12/10/2008 | EP1185369B1 Refining element |
| 12/10/2008 | CN101321908A Process of producing high-yield pulp |
| 12/10/2008 | CN100441772C Production technology of thermomechanical bamboo pulp |
| 12/09/2008 | US7461744 Apparatus for separating fibers from reject material |
| 12/09/2008 | CA2438653C A pair of opposed co-operating refining elements |
| 12/04/2008 | WO2008144903A1 Concurrent anaerobic digestion and fermentation of lignocellulosic feedstocks |
| 12/04/2008 | US20080296206 Process and device for aerating suspensions |
| 12/04/2008 | CA2687916A1 Concurrent anaerobic digestion and fermentation of lignocellulosic feedstocks |
| 12/03/2008 | EP1896651B1 Method and apparatus for mechanical defibration of wood |
| 12/03/2008 | EP1292393B1 Refining element for a refining disc |
| 11/27/2008 | WO2008142910A1 Screen plate of rotor for cutting wastepaper |
| 11/26/2008 | EP1994239A1 Grass (herbaceous plant) fiber |
| 11/26/2008 | CN201155066Y Environment-protecting kneader pulper for paper product |
| 11/25/2008 | CA2375059C A method and means for measuring stress forces in refiners |
| 11/20/2008 | WO2008138109A1 Pectate lyases with increased thermostability and/or enzymatic activity |
| 11/20/2008 | US20080283642 Device for reuse of plastic materials and paper fibers rejected in previous recycling |
| 11/20/2008 | US20080283206 forming a slurry of the recycled macro stickies and a liquid, using a first separation device to separate out the macro stickies and the pulp fiber while collecting the screenate, washing pulp fiber and stickies to seperate out remaining macro stickes, collecting screenate, measuring separated stickes |
| 11/20/2008 | CA2686887A1 Pectate lyases with increased thermostability and/or enzymatic activity |
| 11/19/2008 | EP1992735A1 Method and device for aerating suspensions |
| 11/18/2008 | US7452416 particles to which are bound a water soluble cationic polymer (polyethylenimines, polydiallyldimethylammonium chlorides, cationic polyacrylamides); cationic polymer latex particles which are bound to the titanium dioxide particles; papermaking |
| 11/18/2008 | CA2300094C Apparatus for cleaning a suspension, preferably a fiber mass suspension |
| 11/13/2008 | WO2008136442A1 Crush/collection/regeneration system of waste paper and shredder and communication apparatus for use in that system |
| 11/13/2008 | WO2008135783A1 Biomass treatment process |
| 11/13/2008 | WO2008134885A1 System and method for optimizing lignocellulosic granular matter refining |
| 11/13/2008 | US20080277082 Impregnating a cellulosic biomass feed material in a pressurized reactor vessel;discharging to a high pressure compressor;pressurization; discharging to a conduit coupled to a blow valve; high speed depressurization; pulping by expansion of fluid; cell bursting; wood chips |
| 11/13/2008 | DE102007022753A1 Defibration of chemically treated lignocellulosic raw material, useful in cardboards and papers, comprises removing the lignocellulosic raw material from the fiber with a high milling degree by providing a specific milling energy |
| 11/13/2008 | DE102007022020A1 Refiner for producing lignocellulose-based charging material, has turbulence producing unit producing turbulences in fluid solid flow, and arranged in section of material discharge opening lying upstream of valve |
| 11/13/2008 | CA2691128A1 System and method for optimizing lignocellulosic granular matter refining |
| 11/12/2008 | CN101302728A Sisal hemp pulp and preparation thereof |
| 11/12/2008 | CN101301767A High-density flame-proof sheet material |
| 11/12/2008 | CN100432334C Process for making pulp with white paper mulberry |
| 11/07/2008 | CA2628515A1 High pressure compressor and steam explosion pulping method |
| 11/06/2008 | WO2008132228A1 A method for reducing the energy consumption at the refining of a pulp suspension in a papermaking process and use of sodium bicarbonate in papermaking |
| 11/05/2008 | CN201144359Y Preheating and loosing integrated screw conveyer |
| 11/05/2008 | CN101298743A Method for deinking and degumming of waste book and newspaper |
| 11/05/2008 | CN101298189A Composite moulding process for recovering PP and wheat straw fiber |
| 11/05/2008 | CN101298159A Routing plate processing technique |
| 10/30/2008 | WO2008129048A1 Method for the production of bleached wood particles and wood materials ranging from light-toned to white |
| 10/30/2008 | WO2008128505A2 Pulper for recycling a mixture |
| 10/30/2008 | US20080264585 providing an aqueous pulp suspension containing recycled fibers, printing ink and CaCO3; stabilizing the hardness of pulp suspension by causing dissolution of CaCO3 by mixing a weak acid ( citric acid, acetic acid, formic acid, H3PO4 ), subjecting the suspension to flotation to separate printing ink |
| 10/28/2008 | CA2480891C Pulp flaker |