Patents
Sitemap › D21 - Paper-making; Production of cellulose › D21B - Fibrous raw materials or their mechanical treatment › D21B 1 - Fibrous raw materials or their mechanical treatment
Patents for D21B 1 - Fibrous raw materials or their mechanical treatment (6,805)
11/1998
11/28/1998CA2206392A1 Process for regulating a paper deinking line and device for continuous measurement of the quantity of particles contained in a liquid
11/25/1998EP0879314A1 Method for recycling mixed wastepaper using ink agglomeration
11/24/1998US5840156 Froth flotation process for deinking wastepaper using multiflow pressurized deinking module
11/19/1998DE19803089A1 Method of separating solids from a suspension using flotation in a clarification tank
11/19/1998DE19714354A1 Sludge shredder
11/18/1998EP0877646A2 Process for producing workpieces and molded pieces out of cellulose and/or cellulose-containing fiber material
11/17/1998US5836689 Device for kneading high-consistency fiber pulp
11/17/1998US5836531 Paper pulp defibering or refining plate and method of manufacturing it
11/12/1998WO1998050623A1 Apparatus for feeding and refining lignocellulosic material
11/12/1998WO1998050622A1 Overhead drive bar screen
11/11/1998EP0876535A1 Method for marking paper and apparatus for detected marked paper
11/11/1998EP0876220A1 Industrial utilisation of garbage with effective recycling and with 0ptimisation in energy production
11/05/1998WO1998049389A1 A pulping apparatus
11/05/1998CA2288146A1 A pulping apparatus
11/04/1998EP0874935A1 Process for producing pulp from lignocellulosic plants, and pulp obtained
11/03/1998US5829597 Air density system with air recirculation and gyrating bar feeder
11/03/1998CA2126705C A method of and a reactor for removing impurities from a liquid
10/1998
10/28/1998CN2295781Y Multi-roller extractor for sugarcane residue
10/22/1998WO1998046824A1 Multiflow pressurized deinking apparatus
10/22/1998CA2286292A1 Multiflow pressurized deinking apparatus
10/20/1998US5823453 Refiner disc with curved refiner bars
10/15/1998WO1998045535A1 Environmentally friendly processed tropical fiber product and method for making the same
10/14/1998EP0702597B1 Refiner segment
10/14/1998CN2294283Y Recovering and reproduction machine for paper-plastic composite bag
10/14/1998CN2294282Y Machine for fiber-separation and squeezing for straw raw material for paper making
10/13/1998CA2130625C Adjustable bar screen
10/04/1998CA2201801A1 Magnetic removal of "stickies" from waste papers
10/01/1998WO1998042914A1 Method and apparatus for commercial scale biopulping
10/01/1998DE19712653A1 Dispersal of compacted paper fibre mass
09/1998
09/30/1998CN2292827Y Waste film coated paper presoak pulper
09/29/1998US5814187 Gas jet spraying against a screen to separate fibers by length; screening the rejected material without deforming the large impurities to obtain long fibers suitable for reuse in papermaking
09/29/1998US5813617 Dual feed wood chip destructuring device
09/22/1998US5810973 Apparatus for producing small particles from high consistency wood pulp
09/17/1998WO1998040173A1 Roller device to separate chips and particles of different gradings, and the relative forming machine employing the device
09/17/1998DE19806734A1 Flotation cleaning of fibre suspensions especially for processing used paper materials, for recycling
09/16/1998EP0864011A1 Method and apparatus for continuously preparing cellulose pulp
09/15/1998US5807465 Absorber from recovered papermaking wastes
09/09/1998EP0677122B1 A method of producing mechanical and chemi-mechanical pulp
09/09/1998CN2290625Y Paper pulp dissociating machine
09/09/1998CN2290624Y Straw pretreating bull block for paper making
09/08/1998US5804061 Multiflow pressurized deinking apparatus
09/08/1998US5803374 Breakdown tool
09/08/1998US5803270 Methods and apparatus for acoustic fiber fractionation
09/03/1998DE19710302A1 Sludge shredder
09/02/1998CN2289822Y Multifunction disintegrating mill
09/02/1998CN1039659C Improvement in comminuting wood pulp sheeting
09/01/1998CA2137276C Method of preparing chemi-mechanical pulp
08/1998
08/27/1998WO1998037271A1 Feeding element for fibrous material
08/27/1998WO1998036837A1 Feeding device for fibrous material
08/27/1998WO1998036836A1 Method and device for treatment of fibrous material
08/27/1998DE19706404A1 Removal of fibre clumps from a suspension
08/26/1998EP0811089A4 System and method for recycling materials
08/25/1998US5798025 Apparatus for screening waste paper pulp
08/25/1998US5797549 Apparatus for separating plastics from paper fiber
08/25/1998CA2126517C Pulp defibration or preparation plate, and process using said plate
08/19/1998EP0858880A2 Apparatus for dehydrating and defibering ligno-cellulose material
08/13/1998WO1998035089A1 Method and apparatus for preheating an impregnating cellulosic material
08/12/1998EP0857815A2 Pulper for treating bio-domestic waste
08/06/1998WO1998033970A1 Process for producing fibrous materials with improved properties
08/06/1998WO1998033969A1 Method to obtain wood with weak fibre connections
08/06/1998WO1998033595A1 Apparatus and associated method for defibering paper or dry pulp
08/06/1998WO1998033584A1 Medium consistency liquid mixer
08/06/1998DE19704054A1 Verfahren zur Herstellung von Faserstoffen mit verbesserten Eigenschaften A process for producing fibrous materials with improved properties
08/06/1998CA2279524A1 Process for producing fibrous materials with improved properties
08/06/1998CA2277218A1 Medium consistency liquid mixer
07/1998
07/30/1998WO1998032911A1 Protection system for a wood chip destructuring device
07/30/1998WO1998032910A1 Method of and apparatus for treating wood chips
07/30/1998CA2278286A1 Method of and apparatus for treating wood chips
07/30/1998CA2277158A1 Protection system for a wood chip destructuring device
07/29/1998EP0746649B1 Methods for preparing pulpwood for digestion
07/29/1998EP0729530B1 Segmented wood chip cracking roll
07/29/1998EP0687320B1 Process for preparing mechanical pulp
07/29/1998CN2286767Y Wheatgrass extrusion rubbing machine
07/28/1998US5785809 Using an enzyme to dislodge ink particles at a controlled ph
07/23/1998WO1998031871A1 Method for fractionating cereal straw, in particular wheat and barley
07/23/1998DE19702060A1 Separation of printing ink from paper fibre suspension
07/22/1998CN1188521A Disc refiner with conical ribbon feeder
07/15/1998EP0852636A1 Method for improving the efficiency of chemical pulping processes by pretreating wood or pulpwood with white rot fungi
07/09/1998WO1998029596A1 Method and apparatus of defibrating a fibre-containing material
07/08/1998EP0852174A1 Process for preparing cellulosic fibrous aggregates
07/07/1998US5776305 Low-resident, high-temperature, high-speed chip refining
07/07/1998US5776304 Method and apparatus for treating filler-containing material, such as recycled fibers
07/02/1998WO1998028490A1 Method and device for conducting a process in the production of paper
07/01/1998EP0850699A2 Bar screen drive system
06/1998
06/30/1998US5772131 Kneader for paper stuff
06/30/1998US5771718 Concentrated washing machine
06/30/1998CA2058312C Refining assisting agent and refining method using the same
06/26/1998CA2225695A1 Bar screen drive system
06/25/1998WO1998027269A1 Treatment process for cellulosic fibers
06/25/1998WO1998027268A1 Arrangement in a pulp grinder
06/25/1998WO1998027267A1 Arrangement for feeding wood in a pulp grinder
06/25/1998WO1998027266A1 Arrangement for providing continuous grinding in a pulp grinder
06/25/1998WO1998026874A1 Reducing wax content and enhancing quality of recycled pulp from occ and waste paper
06/25/1998WO1998011973A3 Process for producing workpieces and molded pieces out of cellulose and/or cellulose-containing fiber material
06/25/1998DE19653243A1 Paper insulation or noise=damping material(s) preparation method
06/25/1998CA2275637A1 Arrangement for providing continuous grinding in a pulp grinder
06/25/1998CA2274978A1 Arrangement for feeding wood in a pulp grinder
06/25/1998CA2274027A1 Reducing wax content and enhancing quality of recycled pulp from occ and waste paper
06/25/1998CA2273292A1 Treatment process for cellulosic fibers
06/24/1998EP0849394A1 Method for increasing the bulk of fibrous material, and apparatus for treating fibrous material
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