Patents
Sitemap › D21 - Paper-making; Production of cellulose › D21C - Production of cellulose by removing non-cellulose substances from cellulose- containing materials; Regeneration of pulping liquors; Apparatus therefor › D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters
Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265)
12/2008
12/16/2008CA2520226C High ph treatment of pulp in a bleach sequence to produce pulp having low d.p. and low copper number for use in lyocell manufacture
12/16/2008CA2502911C Light-stable and process-stable lignocellulosic materials and their production
12/11/2008WO2008086937A3 Bleaching of substrates
12/11/2008DE19723629B4 Verfahren zum Behandeln von Lignin, ligninhaltigen Materialien oder ähnlichen Stoffen A method for treating lignin, lignin-containing materials or similar substances
12/10/2008CN101319471A Environment friendly energy-saving circulation type non-pollution pulping process and its system apparatus
12/10/2008CN101319046A Partial esterified isomerized alcohol block polyether, preparation and application in deinking of waste paper
12/04/2008WO2008147311A1 Arrangement for washing and dewatering cellulose pulp
12/04/2008WO2008147310A1 Arrangement for washing and dewatering cellulose pulp
12/04/2008US20080295986 Method of Producing Paper and Cardboard
12/04/2008US20080295982 Process for Producing Fiber Pulp Utilizing Bamboo and Pulp Produced Using the Same
12/04/2008CA2686943A1 Arrangement for washing and dewatering cellulose pulp
12/04/2008CA2686784A1 Arrangement for washing and dewatering cellulose pulp
12/03/2008EP1996762A1 Near-neutral chlorine dioxide bleaching of pulp
12/03/2008CN101314926A Drawing mechanism of medium-high density bleaching column
12/03/2008CN101314924A Pulping paper-making process with zero discharge of sewage water
11/2008
11/27/2008WO2008144383A1 Methods to detect organic contaminants in pulp and fiber
11/27/2008WO2008144304A1 Methods to control organic contaminants in fibers
11/27/2008WO2008141463A1 Method to remove hemicellutose from cellutosic fibres using a solution of ammonia and hydrogen peroxide
11/27/2008WO2008076738A3 Detoxifying pre-treated lignocellulose-containing materials
11/27/2008US20080294132 Cellulosic fiber compositions having odor control and methods of making and using the same
11/27/2008CA2687581A1 Method to remove hemicellulose from cellulosic fibres using a solution of ammonia and hydrogen peroxide
11/27/2008CA2686257A1 Methods to control organic contaminants in fibers
11/26/2008EP1995303A2 Enzyme preparation with endoglucanase activity
11/26/2008EP1994219A1 Chemical pulp treatment compositions and methods
11/26/2008CN100436586C Endoglucanase NCE5 and cellulase preparations contg. same
11/25/2008US7456285 Use of metal complex compounds as oxidation catalysts
11/23/2008CA2630986A1 Two vessel reactor system and method for hydrolysis and digestion of wood chips
11/23/2008CA2630985A1 Single vessel reactor system for hydrolysis and digestion of wood chips with chemical enhanced wash method
11/20/2008WO2008141121A1 Method of monitoring and inhibiting scale deposition in pulp mill evaporators and concentrators
11/20/2008WO2008140396A1 Apparatus and method for washing pulp in a rotatable drum
11/20/2008WO2008138428A1 Method for shredding chemically treated raw material containing lignocellulose
11/20/2008CA2685076A1 Method of monitoring and inhibiting scale deposition in pulp mill evaporators and concentrators
11/18/2008CA2520236C Low ph treatment of pulp in a bleach sequence to produce pulp having low d.p. and low copper number for use in lyocell manufacture
11/18/2008CA2435702C Flowable and meterable densified fiber flake
11/18/2008CA2415853C Serial drum apparatus and method for processing wet material
11/18/2008CA2315063C Bleaching of chemical pulp with peracid
11/18/2008CA2300094C Apparatus for cleaning a suspension, preferably a fiber mass suspension
11/13/2008WO2008135631A1 Method for preparing dithionite
11/13/2008WO2007070527A3 Process for treating a cellulose-lignin pulp
11/13/2008US20080277080 Overexpression and repression of genes in plants; myo-inositol 1-phosphate synthase, myo-inositol monophosphatase, myo-inositol oxygenase, beta -glucuronidase, glucuronokinase, glucuronosyltransferase, glucuronate-1-phosphate uridyltransferase, phosphoglucomutase, UDP-glucose pyrophosphorylase and more
11/13/2008DE102004010196B4 Vorrichtung zum Austragen von lignozellulosem Rohmaterial aus einem Kocher und zur Förderung des Rohmaterials zu einem Refiner Device for the removal of lignocellulosic raw material from a boiler and the promotion of the raw material to a refiner
11/13/2008CA2684688A1 Method for preparing dithionite
11/12/2008EP1462524B1 Cellulase preparations containing reducing agent and method of processing fiber
11/12/2008CN201148568Y Press master
11/12/2008CN101305127A A new pulp and process for pulping
11/12/2008CN101302728A Sisal hemp pulp and preparation thereof
11/12/2008CN101302726A Double-roller pulp extruding machine
11/12/2008CN101302725A Process for producing cotton dissolving pulp
11/12/2008CN101302724A Medicament agent for environment friendly pulping and environment friendly pulping process
11/12/2008CN101301544A Pressure disc type filter
11/12/2008CN100432334C Process for making pulp with white paper mulberry
11/06/2008WO2008132228A1 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
11/06/2008US20080271861 Method for Oxygen Delignification of Cellulose Pulp by Mixing of Chemicals
11/05/2008CN201144361Y Filter drum of press master
11/05/2008CN201144360Y Pulp inlet device of high speed pulp washer
11/05/2008CN101298743A Method for deinking and degumming of waste book and newspaper
10/2008
10/30/2008WO2008129048A1 Method for the production of bleached wood particles and wood materials ranging from light-toned to white
10/30/2008WO2008106083A3 Methods and systems for the use of recycled filtrate in bleaching pulp
10/30/2008US20080264587 Reducing the Water and Water Vapour Absorbence and Enhancing the Dimensional Stability of Paper and Paper Products and Use of Coated Paper Products
10/30/2008US20080264586 separating the fibre pulp mixture into two fractions to form a coarse and a fine fraction; bleaching coarse fraction by oxidizing bleaching using H2O2, peracetic acid, O3, and reducing bleaching using Zn dust, SO2, dithionite, thiourea dioxide; precipitating CaCO3 in fine fraction
10/30/2008US20080264584 New Composition and Process for the Treatment of Fibre Material
10/29/2008EP1984561A1 Method for the manufacturing of microfibrillated cellulose
10/29/2008CN100429348C Vertical pulp dewatering machine
10/28/2008CA2480891C Pulp flaker
10/28/2008CA2480796C Method for conveying, mixing, and leveling dewatered pulp prior to drying
10/28/2008CA2431301C A system for producing dried singulated cellulose pulp fibers using a jet drier and injected steam
10/23/2008US20080262225 Manganese, titanium, iron, cobalt, nickel, or copper with ligand
10/23/2008US20080257506 Filtering a pulp slurry in a tank with a rotary drum filter having a filter deck assembly of a corrugated sheet, drainage slots, perforated filter plate, seal clip; easy replacement of the filter plate and corrugated sheet combination(s) and/or cap strip
10/22/2008EP1982015A2 Method and apparatus for determining the total peroxide content of pulp suspension
10/22/2008EP1981635A1 Use of metal complex compounds as oxidation catalysts
10/22/2008EP1268932B1 Pitch and stickies control in pulp and papermaking processes
10/22/2008CN201137016Y Ultrasonic cleaning apparatus for paper pulp raw material
10/22/2008CN101289819A High-pressure and overflowing washing method of paper pulp
10/22/2008CN100427677C Dual-screen pulp washing machine
10/16/2008WO2008122929A1 Material for acquisition of liquids and disposable absorbent article comprising the material
10/16/2008WO2008019228A3 Moving bed biomass fractionation system and method
10/16/2008DE102007017657A1 Tris/heterocyclyl)-Metallkomplexe als Bleichkatalysatoren Tris / heterocyclyl) metal complexes as bleach catalysts
10/16/2008DE102007017656A1 Biheteroaryl-Metallkomplexe als Bleichkatalysatoren Biheteroaryl-metal complexes as bleach catalysts
10/16/2008DE102007017654A1 Bis(hydroxychinolin)-Metallkomplexe als Bleichkatalysatoren Bis (hydroxyquinoline) metal complexes as bleach catalysts
10/15/2008EP1979533A1 Process for the bleaching of mechanical paper pulp
10/15/2008EP1979532A2 Process for treating a cellulose-lignin pulp
10/09/2008WO2008119770A1 Method for modifying the structure of a cellulose material by treatment with an ionic liquid
10/09/2008WO2008098601A3 Fas bleaching
10/08/2008EP1978140A1 Material for acquisition of liquids and disposable absorbent article comprising the material
10/08/2008EP1311722B1 Two-stage chlorine bleaching process with filtrate recirculation
10/08/2008CN201128840Y Water filtering plate without mesh
10/08/2008CN101280541A Method for manufacturing paper ball pad material for pet and product made by the method
10/08/2008CN101280466A Hemp dissolving pulp for chemical fabrics and production method thereof
10/08/2008CN101280277A Trametes gallica, culture method and application thereof
10/07/2008CA2432788C Alkaline extraction stages comprising xylanase
10/07/2008CA2358984C Apparatus for introducing a first fluid into a second fluid, preferably introduction of steam into flowing cellulose pulp
10/07/2008CA2319180C Improved papermaking processes
10/02/2008WO2008116319A1 Bioproduction of ferulic acid and uses thereof
10/02/2008WO2006125224A3 Image presentation and micro-optic security system
10/02/2008US20080241536 Produced from cellulose dissolved in ionic solvents and extruded by the meltblowing process; pulp
10/02/2008US20080236770 Reacting free fatty acids in wood fiber suspension with oxygen to form enoyl-coenzymes A and hydrogen peroxide; reacted peroxide with a dye precursor to produce electrochemical species and measurable color change; determining the concentration by spectrometry or chromatography
10/01/2008EP1975310A1 Process for the control of pitch
10/01/2008CN201125345Y Pulp thickener
10/01/2008CN101275374A Pulp cleaning agent, pulp manufacturing method and pulp cleaning method
10/01/2008CN101275292A Production process for tea viscose fiber
1 ... 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 ... 103