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Matches 251 - 300 out of 1,000

Document Document Title
WO/2007/092359
Embodiments of a diatom composition and method for its use in making paper products is described. One embodiment of the disclosed method comprises providing an aqueous pulp composition, typically a pulp composition comprising furnish der...  
WO/2007/092359
Embodiments of a diatom composition and method for its use in making paper products is described. One embodiment of the disclosed method comprises providing an aqueous pulp composition, typically a pulp composition comprising furnish der...  
WO/2007/071387
The invention relates to a plant fibre provided with hardener-free novolak. The plant starting materials are broken down into thermomechanically decomposing aggregates or chemo-thermomechanically decomposing aggregates, in the presence o...  
WO/2007/071387
The invention relates to a plant fibre provided with hardener-free novolak. The plant starting materials are broken down into thermomechanically decomposing aggregates or chemo-thermomechanically decomposing aggregates, in the presence o...  
WO/2007/073312
Special demands are placed on the properties of short-fibred cellulose pulp when this type of pulp is used for the manufacture of paper, and a paper manufacturer primarily desires a pulp with predictable and constant properties. The pres...  
WO/2007/071187
A method for making paper pulp from straw, which utilizes the acute reaction of hydrogen peroxide and alkali substance and the heat energy released from it to make paper pulp. The method comprises the following steps: crushing wheat, ric...  
WO/2007/070527
A process of treating a cellulose-lignin pulp. In an ozone stage, the pulp is contacted with ozone to bleach and delignify the pulp. The ozone stage is conducted without the addition of a peroxide bleaching agent. A chelant is introduced...  
WO/2007/070527
A process of treating a cellulose-lignin pulp. In an ozone stage, the pulp is contacted with ozone to bleach and delignify the pulp. The ozone stage is conducted without the addition of a peroxide bleaching agent. A chelant is introduced...  
WO/2007/065241
A continuous and batch system to produce cellulose, native lignin and unicellular protein from any form of vegetation in a closed process. The biomass is mixed in the impregnate solution of nitric acid and/or ammonium hydroxide and water...  
WO/2007/064293
The invention concerns an arrangement and a method for the continuous cooking of chemical cellulose pulp in a continuous digester system (100). The continuous digester system (100) comprises an inlet (102) for the feed of a chips suspens...  
WO/2007/051269
Improvements in a process for rapid acid hydrolysis of lignocellulosic material and in a hydrolysis reactor, said lignocellulosic material being fed in different levels of a reactor (10) and contacted with flows of lignin organic solvent...  
WO/2007/017553
The invention refers to a method where lactic acid, its water solution, lactide, lactic acid oligomer, polylactic acid or mixture thereof is used for the degradation of cellulose based biomass, such as natural structure of wood, and tran...  
WO/2007/008689
The present invention is a method for producing a pulp from a fibrous lignocellulose material or source using a treatment or pretreatment step which exposes the material to oxalic acid derivatives, particularly dialkyl ester derivatives,...  
WO/2007/004757
Disclosed are a technique for producing high quality paper-making pulp capable of replacing wood pulp, utilizing bamboo and paper products produced using the same. The present invention can be applied to techniques for producing a variet...  
WO/2006/134126
The invention provides a process for organosolv pulping, wherein solid lignocellulosic feed material is heated at a temperature in the range of from 50 to 210 °C in a solvent to obtain a solid cellulosic fraction comprising at least 50 ...  
WO/2006/132462
The present invention relates to a manufacturing method of mechanical pulp from stalks of corn, an annual plant, by adding a digesting agent and, prior to, during or following addition of the digesting agent, completely separating fibrou...  
WO/2006/129906
The present invention relates to a method for producing mechanical pulp from stalks of corn, an annual plant. Pulping and bleaching are performed simultaneously by adding a salt compound selected from a group consisting of sodium carbona...  
WO/2006/128304
A continuous process for treating a lignocellulosic feedstock is provided. This method comprises pretreating the lignocellulosic feedstock under pressure in a pretreatment reactor at a pH between about 0.4 and about 2.0. One or more than...  
WO/2006/126983
The present invention relates to methods and compositions for chlorine dioxide delignification and/or bleaching processes by reacting pulp with chlorine dioxide and a peroxidase and/or a laccase.  
WO/2006/121634
An omnibus process of pulping and bleaching lignocellulosic materials in which a charge of a lignocellulosic material is biopulped and/or water extracted prior to pulping and bleaching. The lignocellulosic material may be mechanically pu...  
WO/2006/117295
The invention proposes an installation (10) in which the impregnation and fractionation of the raw material (MP) are conducted at atmospheric pressure, characterized in that it comprises means (18, 20) for transferring the raw material (...  
WO/2006/116126
Methods for using ionic liquids to extract and separate a biopolymer from a biomass containing the biopolymer are disclosed. Methods for dissolving a biopolymer in an ionic liquid are also disclosed. A recovery solvent is used to reduce ...  
WO/2006/115310
Disclosed is a process for producing pulp utilizing bamboo, comprising finely cutting the bamboo into short segments and subjecting the cut bamboo to screening and washing processes to thereby produce dissolving pulp capable of achieving...  
WO/2006/116126
Methods for using ionic liquids to extract and separate a biopolymer from a biomass containing the biopolymer are disclosed. Methods for dissolving a biopolymer in an ionic liquid are also disclosed. A recovery solvent is used to reduce ...  
WO/2006/111604
The objective of this invention is a method for separating cellulosic fibres, hemicellulose and lignin from parts of plants containing these, such as stems, leaves and seed coats or hulls of cereal, oilseed, fibre or grassy plants. After...  
WO/2006/113519
A method of sizing paper for use in applications which require resistance to liquids comprising incorporating in the paper a size composition comprising one or more alkenyl succinic anhydride (ASA) compounds prepared from the reaction of...  
WO/2006/104448
A thermostable, alkaline active xylanase was purified from an alkaliphilic Bacillus halodurans S7, isolated from a soda lake in the Ethiopian Rift Valley. The molecular weight and the pi of this enzyme were around 43 kDa and 4.5, respect...  
WO/2006/103317
The invention relates to an improved process to break down lignin macromolecules and liberating cellulose fibers in lignocellulosic material using delignifying reactants with a gaseous organic agent as a heating and reaction-accelerating...  
WO/2006/101449
The invention concerns a method and an arrangement for the feed of a chips suspension from one vessel to a subsequent digester in a continuous cooking process for the production of chemical cellulose pulp, where the vessel (101) has an i...  
WO/2006/099029
A oxidative solution (Ox-B, a solution of no less than 5:1 sodium hypochlorite: hydrogen peroxide) was found to remove both lignin and hemicellulose from sugarcane bagasse. After treatment the cellulosic residue readily separated from th...  
WO/2006/088818
Methods are provided for altering the tack of an adhesive material by contacting the adhesive material with an amount of a cyclodextrin compound effective to reduce the tack of the adhesive material. In a preferred embodiment, the method...  
WO/2006/086861
The present invention relates to an enhanced process for sugar production through the acid hydrolysis of cellulosic and lignocellulosic materials characterized by the treatment of these materials in three steps. In the first step, it is ...  
WO/2006/083605
A method and kit for rice fiber extraction is provided. In an exemplary embodiment, the method may include treating rice straw with an alkali solution such as a sodium hydroxide solution. Further, the method may include extracting coarse...  
WO/2006/072653
The quality of the raw material in a pulping process, wood chips, varies due to variations in its origin. The variation in chip quality will result in variations in the cooked pulp as well as problems in the operation of a digester. The ...  
WO/2006/053939
The present invention describes a new method and associated devices for the fabrication of pulp from wood, and other cellulose containing natural materials. The fabrication is fast, environmentally friendly, and economical. Process can b...  
WO/2006/047713
The present invention provides methods and compositions for chlorine dioxide delignification and/or bleaching processes using exo-acting xylanases and/or exo-acting mannanases.  
WO/2006/037860
A process and an apparatus for producing pulp from lignocellulosic material by an alkaline cooking process, in which process preheated chips are treated in an impregnation stage with impregnation liquor, which is taken from the impregnat...  
WO/2006/029552
The present invention relates to a method for manufacturing paper pulp, comprising the following steps of physical smashing and biological degrading. Specifically, in the method, physical smashing is carried out by means of cracking, hig...  
WO/2006/024242
By means of the continuous pressure hydrolysis of lignocellulose material and subsequent enzymatic hydrolysis of solid unhydrolysed residues is obtained glucose, to which starch raw materials are added and all of which undergoes amylolyt...  
WO/2006/021618
The invention relates to a method for adjusting the fibrous properties of chemical, mechanical or chemi-mechanical pulp, for adjusting the uniformity of the properties and for decreasing any variation in quality. According to the method,...  
WO/2006/019342
The present invention relate to a two-stage gasification process using a gas generator for the recovery of strongly alkaline chemicals and energy value from a cellulose spent liquor. The temperature in the first reaction zone of the gas ...  
WO/2006/016596
A method of obtaining a fibrous ingredient by treating a lignocellulosic material with a microorganism while preventing cellulose and/or hemicellulose, which are major components of paper, from being decomposed by microorganism-produced ...  
WO/2006/012286
One aspect of this invention relates to a method and digester for reducing the deposition of calcium-based scale in a wood chip digester including extraction from the digester of first and second quantities of cooking liquor having respe...  
WO/2006/007683
Processes and apparatuses for deriving information from liquor obtained in the course of a wood digestion reaction. The information can be used to regulate one or more aspects of the wood digestion reaction either automatically or by com...  
WO/2006/006934
The invention concerns a method for the impregnation of chips during the manufacture of chemical pulp, where the chips are continuously fed without preceding steam treatment to the top of an impregnation vessel (101) that maintains atmos...  
WO/2006/001758
A method and an arrangement for the impregnation of untreated chips during the manufacture of chemical pulp. The untreated chips are fed without preceding steam treatment into an impregnation vessel (10) that comprises an upper part (11)...  
WO/2005/118950
The invention relates to a method for producing a chemical conversion pulp, which comprises the following steps: obtaining a chemical pulp by conventional pulping methods, at least one alkaline pulping step, in which the chemical pulp is...  
WO/2005/118923
The invention relates to the use of a chemical conversion pulp that is produced by methods including an acidic bisulfite pulping method and at least one cold alkali refining step and one hot alkali refining step of the chemical pulp, for...  
WO/2005/116327
Methods for continuously producing pulp from lignocellulose-containing material in a digester are disclosed in which the porous lignocellulose-containing material is fed from the top to the bottom of the digester, liquor is pumped throug...  
WO/2005/106110
A method of producing hardwood pulp is provided. This method comprises treating hardwood chips with one or more than one Family 11 xylanase enzyme in the absence of adding an oxidizing enzyme for about 5 minutes to about 120 minutes, to ...  

Matches 251 - 300 out of 1,000