D21C 3 - Pulping cellulose-containing materials

Patents for D21C 3 - Pulping cellulose-containing materials (5,020)
12/2006
12/27/2006	CN1884686A Reed pulp prepared from wholly closed pollution-free biological oxidation method and its preparation method
12/27/2006	CN1884685A Oxidation method prepared whole-cotton stalk newspaper pulp and its preparation method
12/27/2006	CN1292124C Bleaching paper pulp made from Salix psammophila and making method thereof
12/21/2006	WO2006134126A1 A process for organosolv pulping and use of a gamma lactone in a solvent for organosolv pulping
12/21/2006	CA2611152A1 A process for organosolv pulping and use of a gamma lactone in a solvent for organosolv pulping
12/20/2006	EP1090181B1 Increasing causticizing efficiency of alkaline pulping liquor by borate addition
12/20/2006	CN1880575A Composite cellulose viscose filament yarn with composite cellulose pulp as raw materials made of cotton, wood and bamboo mixture and preparation method thereof
12/20/2006	CN1880573A Methods for preparing alkali cellulose and cellulose ether
12/20/2006	CN1291102C Biological pulping method for non-wood fiber plant
12/14/2006	WO2006132462A1 Manufacturing method of mechanical pulp from cornstalk cellulose
12/13/2006	CN1878909A Full-closed zero discharge oxidizing pulping process and its preparation method
12/13/2006	CN1878908A Full-closed zero discharge bio-oxidizing pulping process and its preparation method
12/07/2006	WO2006129906A1 Manufacturing method of mechanical pulp from cornstalks
12/07/2006	WO2006128304A1 Method of continuous processing of lignocellulosic feedstocks
12/07/2006	CA2610797A1 Method of continuous processing of lignocellulosic feedstocks
12/06/2006	EP1728917A2 Method and system for energy savings in TMP by high temperature LC/MC refining of pulp
12/06/2006	EP1611281B1 Purification of alkaline washing liquid
11/2006
11/30/2006	WO2006126983A1 Chlorine dioxide treatment compositions and processes
11/30/2006	US20060266487 Method for the production of tissue paper
11/30/2006	CA2826916A1 Chlorine dioxide treatment compositions and processes
11/30/2006	CA2607827A1 Chlorine dioxide treatment compositions and processes
11/28/2006	CA2452944C Use of thinnings and other low specific gravity wood for lyocell products
11/28/2006	CA2222694C Impregnation of fiber material
11/28/2006	CA2143985C Cationic and anionic polyelectrolytes for enhancing the freeness of paper pulp
11/23/2006	US20060260773 Ligno cellulosic materials and the products made therefrom
11/22/2006	CN1865583A Pulping process for mixed Devil's Rush herb and reed
11/22/2006	CN1865582A Cold-immersion mechanical pulping process for xyloid raw materials
11/15/2006	CN1861905A Mfg. method of non-glue fibre board
11/15/2006	CN1861899A Tech. of mfg. paper for daily use by caragana microphylla and salix mongolica as raw material for making pulp
11/14/2006	CA2152017C Foam control agent
11/09/2006	WO2006117295A1 Installation for implementing a method for producing paper pulp, lignins and sugars and production method using such an installation
11/09/2006	US20060249265 Treatment of cellulose during bleaching with agent capable of reducing carbonyl groups
11/09/2006	CA2606543A1 Installation and method for producing paper pulp, lignins and sugars
11/08/2006	EP1245721B1 Digestion method for pulp
11/08/2006	CN1858343A Method for preparing Broussonetia paperrifervent pulp for producing viscose fiber
11/07/2006	CA2277931C Method and device for the continuous cooking of chemical pulp
11/02/2006	WO2006116126A2 Extracting biopolymers from a biomass using ionic liquids
11/02/2006	WO2006115310A1 Process for producing fiber pulp utilizing bamboo and pulp produced using the same
11/02/2006	US20060246570 Isolation and use of decay fungi
11/01/2006	CN1854388A The production method and pulp maked bamboos
11/01/2006	CN1282800C Method for prodcing improved pulp
10/2006
10/31/2006	CA2453276C Use of thinnings and other low specific gravity wood for lyocell pulps
10/26/2006	WO2006113519A2 The use of alkenyl succinic anhydride compounds derived from symmetrical olefins in internal sizing for paper production
10/26/2006	WO2006111604A1 Method for separating the main components of lignocellulosic materials
10/26/2006	CA2604944A1 The use of alkenyl succinic anhydride compounds derived from symmetrical olefins in internal sizing for paper production
10/26/2006	CA2603645A1 Method for separating the main components of lignocellulosic materials
10/24/2006	US7125471 Papermaking process using enzyme-treated sludge, and products
10/19/2006	US20060231791 Cooking aid for improving the removal of extractives in pulp production, its production and use
10/19/2006	US20060231223 Reacting maleic anhydride with 11-docosene; for improving resistance to liquid penetration
10/18/2006	CN1847520A Paper pulp preparing process by means of violent decomposition of hydrogen peroxide in the presence of excessive alkaline matter
10/18/2006	CN1847519A Cotton stalk pulping process with high whiteness of pulp
10/18/2006	CN1280484C Method for making pulp using feather as raw material
10/12/2006	WO2006086861A3 Acid hydrolysis process of cellulosic and lignocellulosic materials, digestion vessel and hydrolysis reactor
10/12/2006	US20060225851 Chip washing apparatus
10/11/2006	CN1844572A Biocatalytic clean pulping agent and application process thereof
10/11/2006	CN1844565A Process for circulation production of wood, plate, pulp, and paper
10/11/2006	CN1844563A Paper pulp manufacturing process and equipment
10/05/2006	WO2006104448A1 Thermostable alkaline xylanase
10/05/2006	WO2006103317A1 Production of pulp using a gaseous organic agent as heating and reaction-accelerating media
10/05/2006	US20060219376 Microcrystalline cellulose and method for making
10/04/2006	EP1707669A2 Microcrystalline cellulose and method for making
10/04/2006	EP1707668A1 Closed cycle zero discharge oxidizing pulping process
09/2006
09/28/2006	WO2006101449A1 Arrangement for feeding a slurry of chips and liquid
09/28/2006	CA2602580A1 Arrangement for feeding a slurry of chips and liquid
09/27/2006	EP1704277A1 Feed of a mixture of chips and fluid from a low-pressure system to a high-pressure system
09/27/2006	CN1837459A Environment-friendly complete solution-circulating pulping process flow and method
09/27/2006	CN1837458A Chemical and machinery pulping process using complete white mulberry branch as raw material
09/27/2006	CN1277021C Rice and wheat grass replacing and cooking process
09/27/2006	CN1277006C Flax material viscose fibre pulp, functional fibre thereof and preparation method thereof
09/26/2006	US7112256 Method for continuous cooking of chemical pulp to improve heat economy
09/21/2006	WO2006099029A2 Chemical oxidation for cellulose separation
09/21/2006	US20060207734 Chemical oxidation for cellulose separation
09/20/2006	EP1702101A1 Batch process for preparing pulp
09/20/2006	CN1836068A Solvents for use in the treatment of lignin-containing materials
09/14/2006	US20060204631 Cellulose fiber-based compositions and their method of manufacture
09/14/2006	US20060201641 Methods for producing pulp and treating black liquor
09/14/2006	US20060201640 Method and apparatus to optimize displacement batch cooking using advanced control
09/13/2006	CN1831238A Process for making daily used paper by using salix mongolica as raw material
09/13/2006	CN1274904C Whole black liqucd large liqucd rate cercal grass cooking technology with digester
09/12/2006	US7105076 Gas phase continuous digester having an inverted top separator with liquor injection
09/06/2006	CN1827915A Hybrid penisetum NaOH-AQ method for pulp making, bleaching and paper forming
09/06/2006	CN1827911A Mechanical cold method for making paper pulp
09/06/2006	CN1827910A Pulp making process employing straw to make environment-friendly paper film
09/06/2006	CN1273683C Preparation process for high concentration black liquor in vertical kettle and products thereof
08/2006
08/30/2006	EP0889957B1 Subtilisin dimer with improved activity and process of producing same
08/29/2006	US7097739 Improving properties of the pulp or reducing the digester cycle time in alkaline chemical pulping processes in which a phosphonate and/or carboxylate compound is admixed with the alkaline aqueous mixture in the digester of the chemical pulping process
08/29/2006	US7097738 cooking a fibre-based raw material in organic acids including furfural to produce a pulp; furfural obtained as a reaction product can also be utilized in the cooking; improved pulp yield
08/29/2006	US7097737 Method of making a modified unbleached pulp for lyocell products
08/24/2006	WO2006088818A1 Method for altering the tack of materials
08/24/2006	WO2006086861A2 Acid hydrolysis process of cellulosic and lignocellulosic materials, digestion vessel and hydrolysis reactor
08/24/2006	CA2597905A1 Method for altering the tack of materials
08/24/2006	CA2597352A1 Acid hydrolysis process of cellulosic and lignocellulosic materials, digestion vessel and hydrolysis reactor
08/23/2006	CN1271280C Method for producing chemical wood pulp
08/23/2006	CN1271279C Pulping method using vegetation raw material and xylanase
08/22/2006	US7094317 For use in edible products; industrial thickeners, as in paint thickeners, stain thickeners, coating thickeners
08/16/2006	CN1818205A Catalytic pyrolyzing agent for pulping without steaming and boiling
08/16/2006	CN1270023C Pulp-making method of raising fiber-recovering quality
08/15/2006	US7090744 Process for making composition for conversion to lyocell fiber from sawdust
08/10/2006	US20060177921 Method for removing unsaturated uronic acid in chemical pulp for papermaking
08/10/2006	US20060175029 Batch process for preparing pulp

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