| Patents for D21B 1 - Fibrous raw materials or their mechanical treatment (6,805) |
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| 01/02/2001 | US6168642 Industrial utilization of garbage with effective recycling and with optimization in energy production |
| 12/26/2000 | US6165317 Control of refined pulp quality by adjusting high temperature pre-heat residence time |
| 12/21/2000 | DE19945038C1 Sorting device for different size particles has adjustable height step and horizontal spacing between successive transport conveyors for allowing particles below given size to drop through |
| 12/14/2000 | DE10016560A1 Rotor für eine Papierstoffaufbereitungsmaschine sowie Verschleißschutzelement für einen derartigen Rotor A rotor for a paper stock preparation machine and wear protective element for such a rotor |
| 12/13/2000 | EP1059381A1 Rotor for a pulper and an abrasion-protective element for such a rotor |
| 12/13/2000 | EP1058582A1 Improvements to papermaking refiner plates |
| 12/09/2000 | CA2311018A1 Rotor for a paper stock processing machine, anti-wear element for such a rotor, and paper stock processing apparatus |
| 12/07/2000 | WO2000073571A1 A method for the control of a ground wood pulping process |
| 11/30/2000 | WO2000071810A1 Method and device for sorting paper mixtures |
| 11/30/2000 | CA2338553A1 Process and apparatus for sorting a mixture of paper |
| 11/23/2000 | WO2000069543A1 Separation device |
| 11/23/2000 | WO2000039387A3 Steam explosion treatment with addition of chemicals |
| 11/23/2000 | CA2371052A1 Separation device |
| 11/21/2000 | US6149081 Skeining the twine into a circular bundle; severing the bundle to render it into a longitudinal bundle; washing bundle; severing bundle into twine segments; untwisting or breaking down the twine segments into individual fibers |
| 11/15/2000 | EP1051551A1 Method and apparatus for wetting fibrous material |
| 11/15/2000 | EP0606250B2 A method and device for treating fibre material |
| 11/15/2000 | CN1273618A Method for processing straw into pulp and paper product therefrom |
| 11/15/2000 | CN1273503A Holder for displaying, as well as method for making, floral bouquet |
| 11/14/2000 | US6145766 Screw device for dewatering and defibrating ligno-cellulose material |
| 11/09/2000 | WO2000066465A1 Paper sorting system |
| 11/08/2000 | CN2404915Y High efficiency, environmental protection and energy saving fiber combing straw cutting machine |
| 10/31/2000 | US6139684 Method and apparatus for decontaminating liquid suspensions |
| 10/24/2000 | US6135373 Rotary grinder |
| 10/24/2000 | CA2093260C Method for producing a delignified papermaking fiber from recycled, high lignin content, waste paper and product thereof |
| 10/19/2000 | DE19915735A1 Flotation assembly to separate suspension into fractions which are rich and poor with separated matter comprises flotation column with center inflow and blades to divert low fraction into collection zone |
| 10/18/2000 | CN1270545A Apparatus for cleaning a suspension, preferably a fiber mass suspension |
| 10/11/2000 | EP0770151B1 The process for mechanical treatment of woody products, the product thus obtained and its use |
| 10/11/2000 | CN2400484Y Vertical plant fibre dividing apparatus |
| 10/04/2000 | CN1057026C Process and apparatus for recycling disposable diapers |
| 09/28/2000 | WO2000056973A1 Device and method of using explosive forces in a contained liquid environment |
| 09/28/2000 | CA2366288A1 Device and method of using explosive forces in a contained liquid environment |
| 09/27/2000 | EP0751829B1 Process and apparatus for recycling disposable diapers |
| 09/27/2000 | CN1268198A Plant for producing and treating wood fibres |
| 09/20/2000 | EP1036877A1 Rotor with wear protector for a pulper |
| 09/19/2000 | US6120648 Apparatus for pulping and deinking |
| 09/14/2000 | WO2000053844A1 Method for manufacturing bleached mechanical and chemithermomechanical pulp |
| 09/14/2000 | WO2000053342A1 Sorting device |
| 09/14/2000 | WO2000035588B1 Method and production plant for the manufacture of fibrous material |
| 09/14/2000 | DE19920588A1 Sorting device, especially for paper and cardboard waste |
| 09/13/2000 | EP1034041A1 Refining elements |
| 09/13/2000 | CN2396092Y Pot for breaking waste paper |
| 09/12/2000 | CA2175935C Treatment of waste paper |
| 09/08/2000 | WO2000052256A1 Feed preconditioning for chemical pulping |
| 09/08/2000 | CA2363158A1 Feed preconditioning for chemical pulping |
| 09/07/2000 | DE19907983A1 Sorting system for used paper material has a grinder to reduce the mixture into fragments for wind winnowing into heavy and light ink-free fractions where the light fraction is separated into solid matter and air in a cyclone |
| 09/06/2000 | EP1033212A1 Explosively - split fragments obtained by water-vapor explosion of wooden source materials, wooden material containing such fragments as its aggregate, their manufacturing methods and machines |
| 09/06/2000 | CN2394943Y Dewatering machine for washing straw |
| 08/31/2000 | WO2000050688A1 High pressure, high-speed primary and secondary refining |
| 08/31/2000 | CA2372292A1 High pressure, high-speed primary and secondary refining |
| 08/29/2000 | US6109550 Arrangement for providing continuous grinding in a pulp grinder |
| 08/23/2000 | EP1029975A1 Method for removing impurities from an aqueous fibre suspension |
| 08/23/2000 | EP1028809A1 Method and device for treatment of fibrous material |
| 08/23/2000 | CN1263965A Pulping technology with gas mixing and explosion |
| 08/17/2000 | DE19906327A1 Verfahren zur Entfernung von Störstoffen aus einer wässrigen Faserstoffsuspension A method for removing anionic trash from an aqueous pulp suspension |
| 08/17/2000 | DE19905439A1 Verfahren zur Entfernung von Feststoffen aus einer wässrigen Papierfasersuspension A method of removing solids from an aqueous paper fiber suspension |
| 08/16/2000 | EP1028192A1 Process for removing solids from an aqueous pulp suspension |
| 08/15/2000 | US6102310 System for homogenization of a slurry of segregated drill cuttings prior to injection into an earth formation comprising slurry tank with discharge port; conveyor; fluid injection line; transfer pump; and in-line micron grinder |
| 08/10/2000 | CA2298083A1 Process and apparatus for removing solids from an aqueous paper fiber suspension |
| 08/08/2000 | US6099688 Process for preparing mechanical pulp by treating the pulp with an enzyme having cellobiohydralase activity |
| 08/02/2000 | EP1023491A1 Floor absorbent granular product |
| 08/02/2000 | EP1023487A1 Process and device for treating waste paper without biocides, chlorine compounds, hydrogen peroxide and peracetic acid, recycled tissue paper with a total germ number of less than 1000 kbe/g and a surface germ number of less than 20 kbe/dm?2 |
| 08/01/2000 | US6095443 Arrangement for feeding wood in a pulp grinder |
| 08/01/2000 | US6095442 Perforated drum in a stock preparation system for screening foreign matter from recycled paper |
| 08/01/2000 | US6094795 Rotary shear |
| 07/26/2000 | EP1021613A1 Method for processing straw into pulp and paper product therefrom |
| 07/26/2000 | EP1021612A1 Plant for producing and treating wood fibres |
| 07/26/2000 | CN2388824Y Defibrator for wood pulp board |
| 07/11/2000 | US6086714 Process for adjusting the alkalinity of pulp slurry in a broke pulper using carbon dioxide |
| 07/06/2000 | WO2000039388A1 High bulk, high strength fiber material with permanent fiber morphology |
| 07/06/2000 | WO2000039387A2 Steam explosion treatment with addition of chemicals |
| 07/05/2000 | EP1015683A1 A pulping apparatus |
| 07/05/2000 | EP1015682A1 A method for the control of a groundwood pulping process |
| 07/05/2000 | EP1015123A1 Apparatus for cleaning a suspension, preferably a fiber mass suspension |
| 07/05/2000 | EP0880614B1 Method for recovering fiber from printed wastepaper |
| 07/04/2000 | US6083350 System for treatment of waste paper having a pulping drum and a perforated sorting area |
| 07/04/2000 | US6082549 Process and facility to remove solid matter from an aqueous fibrous material suspension |
| 06/30/2000 | CA2293513A1 Liquid ammonia explosion treatment of wood fibers |
| 06/28/2000 | EP1012375A1 Process and apparatus for treatment of fibrous raw material |
| 06/28/2000 | EP0956190A4 Apparatus for pulping and deinking |
| 06/28/2000 | EP0910475A4 Pulp decontamination apparatus and method of use |
| 06/22/2000 | WO2000035588A1 Method and production plant for the manufacture of fibrous material |
| 06/22/2000 | CA2355656A1 Method and production plant for the manufacture of fibrous material |
| 06/21/2000 | EP1009218A1 Holder for displaying, as well as a method for making, a floral bouquet |
| 06/21/2000 | DE19904349A1 Pulping used paper for recycling has a loosening stage where the hydrogen bridges are broken by steam or gas before a mechanical stirring stage to prepare a suspension for the separation of impurities |
| 06/21/2000 | CN2383868Y Blast pulping complete equipment |
| 06/18/2000 | CA2292469A1 Recovery of fibers from a fiber processing waste sludge |
| 06/18/2000 | CA2292468A1 Fines improvement through steam explosion |
| 06/14/2000 | EP1007227A1 Roller device to separate chips and particles of different gradings, and the relative forming machine employing the device |
| 06/13/2000 | US6073774 Pressurized deinking module with vent line |
| 06/07/2000 | EP0876220B1 Industrial utilisation of garbage with effective recycling and with 0ptimisation in energy production |
| 06/07/2000 | EP0717799B1 Process and apparatus for manufacturing absorbent granular material |
| 06/07/2000 | CN2381659Y Pulp dredger |
| 06/06/2000 | US6071380 Method of papermaking having zero liquid discharge |
| 06/02/2000 | WO2000031335A1 Upgrading of tmp to an sc/lwc quality |
| 06/02/2000 | WO2000030771A1 Modular wood particle screen |
| 05/31/2000 | CN2380598Y Dry pulp paper-machine without pollution |
| 05/31/2000 | CN2380597Y Wheatstraw splitting-dusting machine |
| 05/31/2000 | CN2380596Y Wheat straw soaking-washing machine |
| 05/31/2000 | CN2380543Y 螺旋轴 Screw shaft |
| 05/31/2000 | CN2380300Y 转子 Rotor |