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Matches 301 - 350 out of 1,017

Document Document Title
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/2005/118923
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 ...  
WO/2005/103371
A process of making bamboo pulp for producing cellulose diacetate is disclosed. The process includes stock preparation, pre-hydrolyzing, digesting, beating, alkali treatment, bleaching, drying, etc. The present process may also used for ...  
WO/2005/103370
A method for processing wood chips involves using a combined fungus/enzyme process in which the enzymes are produced in situ. In a first step (300), wood chips are biopulped by treated them with a lignin-degrading fungus. Next (310), the...  
WO/2005/075730
The object of the invention is to reduce foaming of black liquor. It is based on observation about the effect of colloidal neutral substances on the separation of soap. According to the method foaming of the black liquor is reduced by ad...  
WO/2005/064075
According to the invention, polysulfide is used in the manufacture of kraft pulp in the initial stage of a displacement batch process in order to improve the yield. Polysulfide-containing white liquor is added intermixed with the first l...  
WO/2005/064076
The present invention discloses a closed cycle zero discharge oxidizing pulping process. The process includes: (i)forming active oxygen free radicals via an electron reduction reaction with molecular oxygens in an ionic reaction unit ; (...  
WO/2005/064077
The present invention discloses a closed cycle zero discharge bio-oxidizing pulping process. The process includes: (i) forming active oxygen free radicals via an electron reduction reaction with molecular oxygens in an ionic reaction uni...  
WO/2005/064078
The invention concerns an improved method to sluice chips from a low-pressure section to a high-pressure section with a sluice feeder 53' (a high-pressure feeder). The fluid that is used to expel the chips from the sluice feeder 53' prin...  
WO/2005/052247
The present invention relates to a catalyzer for clean pulping and process for using the same. The composition of the catalyzer for clean pulping according to the present invention includes sodium salicylate, anion silicic acid softener,...  
WO/2005/045126
A method is provided for treating black liquor particularly derived from nonwood pulp, by heating with an alkaline earth metal oxide in a toroidal fluidised bed reactor (304) at a temperature of above 650°C. The method may be used alone...  
WO/2005/019526
A system for controlling a processor having at least one sampling port connected to a stage of the processor in order to sample a reactant product from the processor. The system includes a controller configured to control a processing pa...  
WO/2005/017001
The invention relates to a method for dissolving wood, straw and other natural lignocellulosic materials in an ionic liquid solvent under microwave irradiation and/or under pressure. The invention also relates to the resulting solution a...  
WO/2005/017252
A method for the treatment of a lignin-containing material such as wood pulp, bagasse and other plant-derived materials, comprising contacting the lignin-containing material with an ionic liquid to extract the lignin therefrom. The ionic...  
WO/2005/001195
A new method for making pulp out of agricultural residue includes harvesting certain portion of plant stalk. The harvested plant stalk is bailed, transported and stored. At the mill, the plant stalk is chopped and goes through pulping pr...  
WO/2004/106624
The invention provides for methods for producing pulp (comprising cellulose) and lignin from lignocellulosic material, such as wood chips. The methods involve acid catalyzed hydrolysis. Lignocellulosic material having a relatively high m...  
WO/2004/104293
The invention relates to a method for delignifying lignocellulose raw materials, using sulphites in the presence of an alkaline constituent, especially sodium hydroxide or sodium carbonate or a mixture thereof, in an aqueous solution, at...  
WO/2004/094624
The invention relates to methods for the isolation and development of fungi useful in the enhancement of wood or wood products quality and/or wood or wood products processing, and the decay fungi so developed. Compositions comprising or ...  
WO/2004/090225
A method for washing sulphate cellulose pulp in the washing department of a sulphate cellulose mill, in which method a first pulp flow (1) is conducted to a first washer (101), where a washing liquid (12) is combined with the first pulp ...  
WO/2004/085735
Methods for bleaching cellulosic material such as cotton and wood pulp involve contacting the cellulosic material with a peroxide, oxygen or ozone bleaching agent, in the presence of a substituted guanadine-based additive. The substitute...  
WO/2004/078312
Block copolymers having two blocks and having the general formula (III) : R13[(OR14)j (OR 16)l OR 17]m wherein R13 is the residue of an organic initiator; R14 is one or more C2-C4 alkylene groups; R16 is one or more C2-C4 alkylene groups...  
WO/2004/061224
A paper pulp is produced from a non-woodlike lignocellulose-containing biomass and has the following characteristics: the proportion of holocellulose is greater than 90 percent by mass with regard to the dry mass of the paper pulp; the p...  
WO/2004/057101
The present invention relates to a wood cooking aid which comprises a mixture of fatty acids and rosin acids and/or salts thereof in a ratio which is effective in removing the extractives in pulp production. The invention also relates to...  
WO/2004/044285
The present Invention comprises an improved method for refining cellulose that produces a highly refined cellulosic material. The method comprises soaking raw material from primarily parenchymal cell wall structures in an aqueous solutio...  
WO/2004/041995
According to one embodiment of the invention, a system (100) for processing biomass includes a water-impermeable bottom liner, a gravel layer (104) supported by the bottom liner (102), a drain pipe (106) disposed within the gravel layer ...  
WO/2004/029356
The present invention provides a method for obtaining a low molecular black liquor fraction comprising the following steps:a) separating black liquor into two fractions by using separation means with a cut off of approximately 100 kDa or...  
WO/2004/025020
The present invention relates to a new and environmentally sound process for the manufacturing of a chemical pulp from lignocellulosic material with an integrated recovery system for recovery of pulping chemicals. The process is carried ...  
WO/2004/016850
This invention relates to a novel on-line pulp digester control system. More particularly, this invention pertains to a novel control system which employs real time measurements from ion mobility spectrometry to automatically rapidly and...  
WO/2004/015195
This invention is a method of reducing the resin content of chemical pulps comprising heating wood chips in an aqueous alkaline medium in the presence of an effective deresinating amount of an alkyl alcohol alkoxylate of formula RO[(CH2C...  
WO/2004/007834
The invention relates to a continuous method for cooking cellulose-based pulp and to a pulp digester suitable for the method. In continuously operating cooking, the fi­brous pulp moves downwards in a vertical cooking vessel (1), whose u...  
WO/2004/005608
A method and apparatus for solvent pulping of cellulose containing biomass, comprising: a) at least one atmospheric steaming vessel (22) having a first outlet, b) at least one super-atmospheric impregnation vessel (28) operatively connec...  
WO/2004/005609
The invention concerns a method for the continuous cooking of pulp and a digester. At least two withdrawal positions (11E, 11D) for cooking fluid are arranged at different heights in the digester (10). The cooking fluid in the first and ...  
WO/2003/106765
The invention concerns a method and an arrangement for improved impregnation of chips in association with the manufacture of chemical cellulose pulp. Unsteamed chips are fed into an impregnation vessel (30) in which a fluid level (LIQ&lo...  
WO/2003/102296
The invention concerns a method for the production of cellulose pulp, in which wood raw material that principally comprises softwood, preferably in the form of cut wood chips, is treated in several stages in various treatment steps, wher...  
WO/2003/100166
Methods are provided for determining the yield and/or hygroscopicity of a pulp from the dimensions of fibers obtained from a sample of the pulp. The yield and/or hygroscopicity of softwoods and hardwoods may be calculated using the metho...  
WO/2003/097931
The invention concerns a simplified method for the continuous cooking of wood raw material in the form of sawdust for the production of cellulose pulp, in which method no thickening stages are required, and which can be carried out with ...  

Matches 301 - 350 out of 1,017