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Matches 101 - 150 out of 1,018

Document Document Title
WO/2011/127999
The invention relates to a process for producing fibrous material and to a fibrous material from wood having a lignin content of at least 15% for softwood and of at least 12% for hardwood, based in each case on the oven-dry fibre mass, w...  
WO/2011/128481
The invention relates to a method for exploiting stubble, comprising a previous phase of conditioning the stubble, involving the operations of harvesting and parching by separating the straw and the seed plants; obtaining two fractions r...  
WO/2011/128481
The invention relates to a method for exploiting stubble, comprising a previous phase of conditioning the stubble, involving the operations of harvesting and parching by separating the straw and the seed plants; obtaining two fractions r...  
WO/2011/126613
In accordance with certain embodiments of the present disclosure, a method of decreasing the amount of oxidizer required by a pulping or papermaking process is provided. The method comprises adding to a process stream or solution of the ...  
WO/2011/126613
In accordance with certain embodiments of the present disclosure, a method of decreasing the amount of oxidizer required by a pulping or papermaking process is provided. The method comprises adding to a process stream or solution of the ...  
WO/2011/113119
The present invention relates to an improved process for producing chemical cellulose pulp wherein biopolymers are added immediately before, during or after a bleaching step, depending on pulp characteristics and on process conditions us...  
WO/2011/114004
The invention relates to a process for fibrillating lignocellulosic material wherein the process comprises treating lignocellulosic material with ionic liquid and recovering basically intact fibres of said lignocellulosic material. Anoth...  
WO/2011/113126
The present invention relates to an improved process for producing chemical cellulose pulp wherein biopolymers are added immediately before, during or after a bleaching step, depending on pulp characteristics and on process conditions us...  
WO/2011/113126
The present invention relates to an improved process for producing chemical cellulose pulp wherein biopolymers are added immediately before, during or after a bleaching step, depending on pulp characteristics and on process conditions us...  
WO/2011/113329
A circular utilization method of straw in a pulping and papermaking processes comprises the following steps of: obtaining straw raw material for pulping and its waste through stock preparation; obtaining primary pulp by digesting the str...  
WO/2011/112703
The invention provides a method of improving the digestion of wood chips into pulp. The method involves: adding a liphohydrophilic glycerol-based polymer additive to a solution used in the digestion process. This additive is unexpectedly...  
WO/2011/112703
The invention provides a method of improving the digestion of wood chips into pulp. The method involves: adding a liphohydrophilic glycerol-based polymer additive to a solution used in the digestion process. This additive is unexpectedly...  
WO/2011/104196
The invention relates to a method for deaerating liquids which contain at least 50% by weight, in particular 70% by weight, of water by adding to these liquids 0.00001 to 1.0% by weight of polyoxyalkylenes of the formula R-[O-CH2-CH(CH3)...  
WO/2011/104196
The invention relates to a method for deaerating liquids which contain at least 50% by weight, in particular 70% by weight, of water by adding to these liquids 0.00001 to 1.0% by weight of polyoxyalkylenes of the formula R-[O-CH2-CH(CH3)...  
WO/2011/103180
Disclosed are a method of hydrolysis of wet fiber and a method for preparing ethanol. Generally, an agricultural plant material, such as corn hulls, distillers dried grains, or spent germ, is treated to at least partially hydrolyze the f...  
WO/2011/102760
The present invention relates to a method and system for cooking of chemical pulp, and relates in particular to a process for dealing with rejects in conjunction with the cooking of chemical pulp. According to the invention is a chopper ...  
WO/2011/096857
The present invention concerns an improvement of the heating circulation in a continuous digester for the production of cellulose pulp. The heating circulation withdraws treatment liquor from the vessel via a strainer section 61 arranged...  
WO/2011/091044
Methods are disclosed for the continuous treatment of biomass comprising a pretreatment step, wherein said biomass is contacted with a first supercritical, near-critical, or sub-critical fluid to form a solid matrix and a first liquid fr...  
WO/2011/085038
A process for producing a water-absorbent high-porosity fibrous matrix from lignocellulosic raw materials, comprising wet mechanical processing of the raw material, drying, and then dry mechanical processing the fibers to provide a fibro...  
WO/2011/080399
A tall-oil pitch product, which is saponified with an alkali, which product comprises a stable emulsion or a micelle-water mixture, and a method of producing it, and its uses. In the present method, in order to saponify and to hydrolyse ...  
WO/2011/080131
A method of pre-treating a cellulosic material before hydrolysis is provided. The method comprises the steps of: impregnating the cellulosic material with a reactive water-soluble gas, such as sulphur dioxide (SO2) or carbon dioxide (CO2...  
WO/2011/078775
The invention concerns a method and an arrangement for the improvement of a wash after completed digestion in a continuous digester (1) for the production of cellulose pulp. According to the invention, the softened chips are exposed to a...  
WO/2011/072718
The present invention relates to a process for forming a pulp mixture, the process comprising the steps of: a) providing a wood material and a first liquor, b) treating the wood material in the first liquor in order to release wood fibre...  
WO/2011/073253
The present invention provides a method for producing furfural from lignocellulosic biomass material, comprising the steps of: (a) contacting the lignocellulosic biomass material with a mixture comprising water and an organic acid at a t...  
WO/2011/069868
The invention relates to novel compositions containing (A) at least one organosilicon compound from units of the formula Ra (R1O) bSiO(4-a-b)/2 (I), wherein R is the same or different and may represent a hydrogen atom or a monovalent, op...  
WO/2011/066189
A method to cook thin chips in a continuous digester vessel including: introducing thin chips having a thickness of no more than 6mm, into a chip bin; adding white (cooking) liquor to the chip bin or to a chip transport passage extending...  
WO/2011/063800
The invention relates to a method for producing refiner wood pulps, wherein the wood chips were irradiated with hydrogen sulfite and high-energy radiation after slight impregnation and then defibred by means of refiners. The wood-chip-ir...  
WO/2011/053203
The invention relates to a method and arrangement for steaming and impregnating wood chips in a single down flow vessel. A first upper volume of chips is established above a liquid level (LIQ_LEV) in the vessel, wherein steaming takes pl...  
WO/2011/007369
This specification describes a process to separate lignin from an aqueous mixture derived from a biomass feedstock, wherein the separation is done at or above critical temperature, usually above 60°C.  
WO/2011/004855
Provided is a technique for improving the causticizing process in pulp production. A high-quality calcium carbonate can be produced efficiently by adding fired shells and a green liquor and by inducing a causticizing reaction during the ...  
WO/2010/147118
An apparatus and process for pulp production are provided with which a pulp can be produced in an environment having the atmospheric pressure and having a temperature lower than in the kraft process and the sulfite process. The apparatus...  
WO/2010/147812
A processes producing mechanical pulps utilizing refiners for improving the quality of screen rejects, and most particularly to a mechanical pulp mill integrated with a neutral-alkaline papermaking process producing mechanical printing p...  
WO/2010/142146
A process for producing high-strength corrugated base paper comprises the following five steps: (1) preparing a pulp;(2) kneading the pulp, in which the pulp concentration is ≥30%, the motor current of the kneader is controlled in the ...  
WO/2010/137535
A method for digesting a lignocellulosic material is provided with which the yield of pulp at the same Kappa number is improved and the proportion of effective alkalis to be added at the same Kappa number is reduced. The method is a cont...  
WO/2010/135594
A system and method for digesting cellulosic material to extract fermentable sugars, lignin, and pulp is disclosed. One embodiment comprises a continuous digester comprising a cellulosic material feed section including a pre-steam and im...  
WO/2010/115488
The invention relates to a method for obtaining cellulose by separating lignin from a biomass comprising lignocellulose in the form of plants or plant parts, wherein the biomass comprising lignocellulose is solubilized in a boiler in an ...  
WO/2010/114470
The invention concerns a system and a method for the regulation of a continuous vapour phase digester (50). The relevant process inflows (CH, ST, WL, DL) are regulated with a process regulator (PC) depending on current process outflows (...  
WO/2010/110724  
WO/2010/106077
A method for inhibiting the formation, deposition and adherence of calcium salt scale to metallic and other surfaces in the equipment, vessels and/or piping of a chemical pulp process facility comprising adding an effective scale inhibit...  
WO/2010/102480
A process of dispersing the mixture of natural higher fatty alcohol and synthetic higher aliphatic alcohol into water, which is in the technical field of fine chemical industry. The emulsion mixture of natural higher fatty alcohol and sy...  
WO/2010/093812
A method for mitigating the costs of establishing a biomass-based pellet manufacturing plant includes identifying an existing pulp processing plant, obtaining permission to access and convert the pulp processing plant, and converting the...  
WO/2010/093812
A method for mitigating the costs of establishing a biomass-based pellet manufacturing plant includes identifying an existing pulp processing plant, obtaining permission to access and convert the pulp processing plant, and converting the...  
WO/2010/093220
A method for manufacturing tissue using recovered paper from corrugated fiberboard as raw material is provided. A method for manufacturing tissue using disclosed recovered paper from corrugated fiberboard as raw material comprises: (a) a...  
WO/2010/093220
A method for manufacturing tissue using recovered paper from corrugated fiberboard as raw material is provided. A method for manufacturing tissue using disclosed recovered paper from corrugated fiberboard as raw material comprises: (a) a...  
WO/2010/083601
A method and apparatus for conveying a cellulosic feedstock are disclosed. The apparatus, such as a holding tank, has a passage. At the outlet to the passage, a conveyance member is provided to convey the cellulosic feedstock laterally a...  
WO/2010/083600
A method and apparatus for preparing a cellulosic feedstock are disclosed. Embodiments of the method comprise passing the cellulosic feedstock out of at least one outlet of a vessel (such as a holding tank) and obtaining at least two str...  
WO/2010/080461
Biomass is pretreated using an organic solvent solution under alkaline conditions in the presence of one of more sulfide (hydrosulfide) salt and optionally one or more additional nucleophile to fragment and extract lignin. Pretreated bio...  
WO/2010/080464
Biomass is pretreated using an organic solvent solution under alkaline conditions in the presence of ammonia and optionally an additional nucleophile to fragment and extract lignin without loss of hemicellulose. Pretreated biomass is fur...  
WO/2010/080460
Biomass is pretreated using an organic solvent solution, under alkaline conditions, in the presence of one or more organo-mercaptan and optionally one or more additional nucleophile to fragment and extract lignin. Pretreated biomass is f...  
WO/2010/080462
Biomass is pretreated using an organic solvent solution under alkaline conditions in the presence of elemental sulfur and optionally one or more alkylamine and/or one or more additional nucleophile to fragment and extract lignin. Pretrea...  

Matches 101 - 150 out of 1,018