Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 51 - 100 out of 2,218

Document Document Title
WO/2013/162422A3
The invention relates to a method for obtaining cellulose and a solution of water-soluble products which consists in pouring water, containing 1-10% ethanol, into a reactor, heating the water to 58-75°С, adding FeCl3 х 6Н2О and soda...  
WO/2013/158384A1
A surfactant treated bleached softwood kraft pulp fiber, useful as a starting material In the production of cellulose derivatives including cellulose ether, cellulose esters and viscose, is disclosed. Methods for making the kraft pulp fi...  
WO/2013/153203A1
Low transition temperature mixtures (LTTMs) or solvents are provided that can be used in methods and systems to dissolve and hydrolyze certain components from lignin-containing biomass (e.g. lignin) at mild conditions so that further deg...  
WO/2013/144446A1
The invention relates to a method for isolating xylan from plant material. In the method, cellulose fibres which contain xylan are used, advantageously cellulose fibres from hardwood; and xylan is extracted (20) from said cellulose fibre...  
WO/2013/143047A1
A preparation process of eucalyptus dissolving pulp comprises the following steps: a: performing pre-steaming; b: subjecting eucalyptus chips to prehydrolysis in an independent continuous hydrolysis tower; c: cooking the hydrolyzed eucal...  
WO/2013/141687A1
The invention provides a biodegradable and/or compostable pulp composition, moulded pulp article(s) and preparation process thereof. The pulp composition is prepared from non-wood fibres with diameters from 2.5 to 10 μιτι. The pulp c...  
WO/2013/141686A1
The invention provides a biodegradable and/or compostable pulp composition, moulded pulp article(s) and preparation process thereof. In particular, the biodegradable and/or compostable pulp composition comprises an exogenous protease, e....  
WO/2013/135965A1
A process for the production of levulinic acid and formic acid and, if desired, cellulose, a sugar product and/or bio- ethanol from biomass in a formic acid-based cooking process, wherein the formic acid is used as a catalyst for the for...  
WO/2013/128196A1
A composition and method of preparing a composition is presented wherein the composition comprises cellulose platelets and the cellulose platelets comprise at least 60% cellulose by dry weight,less than 10% pectin by dry weight and at le...  
WO/2013/122917A1
The present disclosure relates to methods for detoxifying a hydrolysate obtained from a lignocellulosic biomass and methods of producing ethanol from the detoxified hydrolysate. The present methods provide detoxified hydrolysates in whic...  
WO/2013/119977A1
A method of digesting lignocellulosic material includes the steps of providing the lignocellulosic material and a caustic composition having a pH of at least about 10. The caustic composition includes water, an alkaline- or alkaline eart...  
WO/2013/107947A1
The present invention describes a method for pretreating lignocellulosic biomass comprising: a) a step of acid hydrolysis of the biomass with an acid solution resulting in a liquid fraction and a solid fraction, b) a step of separating t...  
WO/2013/107948A1
The present invention relates to a method for preprocessing lignocellulosic biomass, include: a) a step for the acid hydrolysis of the biomass using an acid solution so as to obtain a liquid fraction and a solid fraction; a step of separ...  
WO/2013/106703A1
A bleached softwood kraft pulp fiber with high alpha cellulose content and improved anti-yellowing is provided. Methods for making the kraft pulp fiber and products made from it are also described.  
WO/2013/082735A1
A sectional pulping process for extracting fiber from plant materials by using a chemical mechanical pulping method comprises: fully soaking the material in black liquor of low-concentration NaOH solution, KOH solution, limewater or with...  
WO/2013/068092A1
The disclosure describes a process for the production of a cellulosic feedstock for enzymatic hydrolysis and/or a lignin fraction for chemicals production, characterized in that a) the raw material is lignocellulosic biomass b) the bioma...  
WO/2013/070969A3
The present disclosure provides a solid lignocellulosic hydrolysate and methods to prepare the solid lignocellulosic hydrolysate from a woody biomass or an herbaceous biomass. The solid lignocellulosic hydrolysate allows for ease of stor...  
WO/2013/070969A2
The present disclosure provides a solid lignocellulosic hydrolysate and methods to prepare the solid lignocellulosic hydrolysate from a woody biomass or an herbaceous biomass. The solid lignocellulosic hydrolysate allows for ease of stor...  
WO/2013/066196A1
A continuous flow wood processing technology for extracting lignin from woody plant material and converting the delignified cellulosic residue to crude bio-oils is provided. Wood is chipped before processing starts and fed into a lignin ...  
WO/2013/049222A1
A process for making a fibrillated blend of lyocell and cellulose pulp fibers in which a blend of lyocell and cellulose pulp fibers is provided. The lyocell is from 25% to 75% of the total weight of the blend of lyocell and cellulose pul...  
WO/2013/044347A1
Disclosed is a method of producing various paper types from a nonwood fiber source such as a mixture of flax and wheat. The fiber source is chopped to an average length between 1 and 100 mm, wet-processed, dewatered, and heated in the pr...  
WO/2013/041207A1
The invention relates to a device for hydrothermally pulping dried, lignified lignocellulosic biomass which, in particular, is ball-shaped. Said device consists of a pulping vessel (13) that receives balls of biomass (5) and comprises a ...  
WO/2013/041674A3
A process for processing a lignocellulosic material comprising the steps of a) contacting a lignocellulosic material at a temperature in the range from equal to or more than 120 °C to equal to or less than 210°C with an aqueous acid so...  
WO/2013/033386A1
A pulping process comprises using a high concentration of anthraquinone (AQ). The pulping process is capable of providing a pulp having low Kappa number with unexpectedly high strength. The pulping process can use wood or non-wood fibers...  
WO/2013/033405A1
One aspect of the invention relates to an article of manufacture made from a pulp composition comprising an ARF pulp. In one embodiment, the pulp composition made from agricultural renewable fibers (ARF) having low Kappa number with unex...  
WO/2013/032377A1
The invention is related to a method for the preparation of kraft pulp with increased pulping yield from lignin-containing cellulosic material using polysulfide cooking liquor. In order to increase carbohydrate stabilization and hence th...  
WO/2013/008135A1
Method for production of cellulose and hemicellulose fibers from lignocellulose biomass obtained from sugarcane leaves and buds by applying a process comprising the stages of: a) Diminishing the particle size of the lignocellulose biomas...  
WO/2013/000074A1
A biorefining method of processing a lignocellulosic biomass to separate lignin and hemicellulose from cellulose includes the steps of (a) reacting the biomass in an aqueous slurry having a pH less than 7, comprising a transition metal c...  
WO/2013/000074A9
A biorefining method of processing a lignocellulosic biomass to separate lignin and hemicellulose from cellulose includes the steps of (a) reacting the biomass in an aqueous slurry having a pH less than 7, comprising a transition metal c...  
WO/2012/174429A1
This specification discloses a complete method to manufacture polyester articles from freshly harvested ligno-cellulosic biomass. The process steps include pretreating the biomass and the converting the lignin to one of several possible ...  
WO/2012/168513A1
Method for Kraft cooking of lignocellulose material with low-sulphide alkaline lyes in the production of pulp with direct incorporation of dihydroxyanthracene disodium saltinto the digester. The additive is obtained in parallel with the ...  
WO/2012/162443A3
A process for producing biofuel from biomass that includes free monosaccharides is provided. The process comprises the steps of mixing the biomass with a recycled hydrolysate for a sufficient time to elute a portion of the free monosacch...  
WO/2012/158075A1
The invention is related to an improved compact process for producing dissolving pulp in a prehydrolysis kraft cooking process. In order to avoid pitch problems with blocked withdrawal screens and to obtain a distinct ending of the prehy...  
WO/2012/147094A1
A method for extraction of black liquor from a horizontal tube continuous digester (8,9) is disclosed. The method comprises of passing a mixture of pulp and black liquor from the horizontal tube continuous digester (8,9) through a screw ...  
WO/2012/147094A8
A method for extraction of black liquor from a horizontal tube continuous digester (8,9) is disclosed. The method comprises of passing a mixture of pulp and black liquor from the horizontal tube continuous digester (8,9) through a screw ...  
WO/2012/137076A1
A method and system for pulp manufacturing used in connection with a kraft process includes a vertical pressure vessel operated in batch mode, a single-vessel or multi-vessel continuous digester, and other equipment for further processin...  
WO/2012/135001A2
Formulations and methods for papermaking are disclosed herein using one or more volatile debonders, where the volatile debonder forms a solution or an emulsion with water in a paper precursor, and where the volatile debonder is evaporabl...  
WO/2012/134358A1
The invention relates to a method and arrangement for adding treatment liquid to comminuted cellulose material, preferably wood chips, during the manufacture of chemical pulp in a continuous process. Said process using a down flow vessel...  
WO/2012/131665A1
A method of transforming a lignocellulose material comprises the steps of: a. combining a lignocellulose material with a solution containing hydrogen peroxide and a hydrogen peroxide stabiliser to produce a mixture that is at least 3% by...  
WO/2012/130957A1
The invention relates to a method for producing a cellulose-containing mass for forming a cellulose-containing composite material comprising following steps: (a) providing an input material comprising at least one cellulose-containing ra...  
WO/2012/128901A1
A prehydrolysis of wood chips or other lignocellulosic material in a vessel having a gaseous portion and a liquid portion. The vessel includes at least one stress relieving piece that inhibits overcompression of the lignocellulosic mater...  
WO/2012/110231A1
A method for processing lignocellulose comprises the step of contacting a lignocellulosic substrate with a biphasic liquid system in a reaction vessel, the biphasic liquid system comprising a first, aqueous phase and a second, organic ph...  
WO/2012/110231A8
A method for processing lignocellulose comprises the step of contacting a lignocellulosic substrate with a biphasic liquid system in a reaction vessel, the biphasic liquid system comprising a first, aqueous phase and a second, organic ph...  
WO/2012/102650A1
The invention relates to a continuous digester for producing pulp from comminuted cellulosic material. The digester has a cone diverter on a bottom scraper arranged in the bottom of the digester for assisting in out feed of pulp produced...  
WO/2012/085476A1
The invention relates to a process for the delignification and bleaching of paper pulp, comprising at least one step of bringing the paper pulp into contact with hydrogen peroxide and a molybdenum-based complex of formula (I): in which R...  
WO/2012/088451A2
A pump control system and a torque control valve are disclosed. In one embodiment, the torque control valve includes a sleeve, a spool disposed in the sleeve, and a piston rod disposed through the spool. The spool has a first recess area...  
WO/2012/087228A1
The invention discloses a method of controlling a pulping process wherein wood chips are conveyed to an impregnation vessel and/or to a digester where said wood chips are treated with a liquor comprising chemicals. According to the metho...  
WO/2012/080702A3
The present invention relates to a method for treating a lignocellulose biomass in order to dissolve the lignin therein, while the cellulose does not dissolve. The cellulose pulp obtained can be used to produce glucose. In addition the l...  
WO/2012/074923A2
The invention pertains to, for example, an improved sorbent and process for removing fermentation inhibitors such as furfural and/or HMF in microbial processes utilizing fermentable sugars obtained from biomass including, for example, in...  
WO/2012/071308A2
Biomass pretreatment using anhydrous ammonia was found to be effective in a static vessel when the ammonia can penetrate through the biomass particles or pieces in vapor state. To achieve this condition, total system moisture content is ...  

Matches 51 - 100 out of 2,218