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Matches 1 - 50 out of 2,046

Document Document Title
WO/2022/098963A1
Disclosed are non-wood pulps having a fiber length greater than about 1.70 mm and a brightness of about 80% or greater. The relatively high degree of brightness is achieved without a loss of fiber length or pulp yield. The high degree of...  
WO/2022/098962A1
Disclosed are non-wood pulps having a fiber length greater than about 1.70 mm and a brightness of about 80% or greater. The relatively high degree of brightness is achieved without a loss fiber length or pulp yield. The high degree of br...  
WO/2022/098958A1
Disclosed are non-wood pulps having a fiber length greater than about 1.70 mm and a Very Long Fiber (VLF) content of about 0.50% or less. The fibers are readily dispersible in water and useful in the formation of fibrous sheets, particul...  
WO/2022/098956A1
Disclosed are non-wood pulps having a fiber length greater than about 1.70 mm and a porosity of about 100 cfm or greater. The relatively high degree of porosity is achieved without a loss in tensile strengths. The high degree of porosity...  
WO/2022/093607A1
A foam control agent and method of controlling foam for paper or pulp production by use of a foam control agent, wherein the agent comprises at least a branched alcohol.  
WO/2022/061487A1
A fiber pulp feeding device (100), comprising a pulping container (10), a feeding container (20) and a material supplementing container (30). The pulping container (10) is used for mixing fiber material and water and beating same into fi...  
WO/2022/061483A1
A method for feeding a fiber pulp, the method comprising the following steps: mixing a fiber material with water at a preset ratio; soaking the fiber material in the water for a period of time; breaking the fiber material in the water to...  
WO/2022/055960A1
A pulping method includes chemical cooking of softwood chips to retain a high lignin content of about 18% to about 28% by weight and fiberization of the cooked softwood chips to a low residual wood shive content of at most 15% by weight.  
WO/2022/016159A9
Processing systems and methods are described for pre-processing processing of biomass. The systems include an extruder characterized by one or more ports though which acids and/or bases may be introduced to the biomass during extrusion. ...  
WO/2022/034404A1
Cellulosic material for the production of regenerated cellulosic fiber is disclosed. The cellulosic material comprises reclaimed cellulosic material, wherein the reclaimed cellulosic material is obtained from cellulosic material waste an...  
WO/2022/028500A1
The present invention relates to the technical field of papermaking, and relates to a sulfate wood pulp short-procedure ECF bleaching process X/Z/D-EOP-D or X/D/Z-EOP-D, comprising the following steps: (1) sequential bleaching (X/Z/D or ...  
WO/2022/027080A1
The invention relates to a method for producing cellulose-fiber-based packaging products and to a cellulose-fiber-based packaging product. The method comprises producing at least one first material comprising cellulose fibers, producing ...  
WO/2022/029621A1
The invention relates to a method for obtaining a hybrid wood-inorganic material precursor, a method for obtaining a hybrid wood-inorganic material, a product obtained by this method and uses thereof.  
WO/2022/018193A1
The present invention relates to an activated carrot fiber and to a method for the production thereof. The invention also relates to the use of the activated carrot fiber as a thickening or structuring agent in various industrial product...  
WO/2022/018188A1
The present invention relates to an activated dyed carrot fibre and to a method for the production thereof. The invention also relates to the use of the activated dyed carrot fibre as a thickening or structuring agent in various industri...  
WO/2022/008791A1
The present invention discloses a cooking method and a digester system whereinpartly digested cellulosic fiber source is compressed during cooking to provide highmolecular weight xylan, high molecular weight lignin and pulp.  
WO/2022/006644A1
The present application provides cationic nanofibrillated cellulose (cNFC), which can be used as stabilizer for emulsions, and provides processes to obtain those cNFCs and emulsions. Those emulsions can be used in many applications, e.g....  
WO/2022/008790A1
The present invention discloses a cooking method wherein partly digested wood based cellulosic raw materal is compressed during cooking to provide high molecular weightxylan, lignin and pulp.  
WO/2022/003237A1
The present disclosure provides a method of purifying raw methanol obtained in chemical pulping, wherein heavy oil is admixed with the raw methanol to prevent precipitation, and the methanol mixture is distilled or evaporated to recover ...  
WO/2021/256911A1
The invention relates to the field of pulp and paper production and can be used in the production of pulp from agricultural waste resulting from the processing of cereal crops, in particular rice straw. The invention consists in producin...  
WO/2021/255613A1
The present invention is directed to an improved method for recirculation of formic acid in a process for preparing dissolving pulp, in which sugars are extracted from pre-hydrolysis liquor.  
WO/2021/239649A1
The present disclosure generally relates to a method for treatment of a lignocellulosic biomass. The method comprises the steps of pretreating the lignocellulosic biomass material in a pretreatment arrangement to form a pretreated biomas...  
WO/2021/239647A1
The present disclosure generally relates to a method for controlled pretreatment of lignocellulosic biomass. The method comprises the steps of: Pretreating (S10) a lignocellulosic biomass material in a pretreatment arrangement, the pretr...  
WO/2021/231096A1
The present invention provides for a method to produce a sugar compound from a biomass, the method comprising: (a) providing a first mixture comprising a solubilized biomass and an alkanolamine; (b) recovering at least part of the alkano...  
WO/2021/213741A1
In a process for oxidation of white liquor, in particular of white liquor used in a process for production of paper or cellulose, the oxygen required for the oxidation is supplied to the reactor or the reactors in which the oxidation is ...  
WO/2021/214387A1
According to an example aspect of the present invention, there is provided a method for prehydrolysing lignocellulosic chip material in a reaction vessel by a prehydrolysis reaction carried out in the presence of steam at a reaction temp...  
WO/2021/209725A1
The invention relates to the production of steam-cracked biomass in the form of black pellets in the field of solid biofuels. More particularly, the invention relates to the production of black pellets from a heterogeneous biomass. The a...  
WO/2021/209586A1
A process for delignification of wood fibers is provided, comprising a) providing a lignin-containing cellulosic pulp selected from chemical pulp and semi-chemical pulp, said pulp having a weight content of magnesium of at least 0.001 % ...  
WO/2021/209075A1
Provided are an ultra-fine high-performance microcrystalline cellulose product and a preparation method therefor. The microcrystalline cellulose product has an average particle diameter D50 of 1-25 μm, and a loose density of 0.50-0.80 g...  
WO/2021/198555A1
The invention relates to a method for the separation of lignin from an organic solvent, comprising multiple two-step cycles, wherein each two-step cycle comprises the steps of: adding an aqueous solution to a lignin-containing organic so...  
WO/2021/168536A1
An aqueous acid composition comprising sulfuric acid, a compound comprising an amine moiety and a sulfonic acid moiety and optionally a peroxide. The use of the composition in treating biomass is also disclosed.  
WO/2021/168538A1
Method of delignification of plant material, said method comprising: providing said plant material comprising cellulose fibers and lignin; exposing said plant material requiring to a composition comprising: alkane sulfonic acid; and a pe...  
WO/2021/168537A1
An aqueous composition comprising: sulfuric acid; a compound comprising an amine moiety; a compound comprising a sulfonic acid moiety; and a peroxide. Said composition being capable of delignifying biomass.  
WO/2021/151904A1
The invention relates to a method for obtaining a cellulosic pulp from a plant material comprising, by weight, at least 50% hemp stalks harvested at or after the flowering stage of maturity, the hemp stalks having at least 30% hemp chaff...  
WO/2021/151149A1
Disclosed is a process of defibrillating bacterial nanocellulose. The process may comprise providing a pulp comprising bacterial nanocellulose and an alkaline solution and freezing the pulp to form a frozen pulp. The process may comprise...  
WO/2021/152220A1
To enable economical use of nanocellulosic materials both in small and large sized applications, a method has been developed for production of concentrates containing nanocellulose materials and cellulosic fibres, using parts of non-wood...  
WO/2021/146484A1
A biomaterial may be produced by employing bacterial nanocellulose which are biologically functional and can be enhanced via an enzyme tanning treatment, to form a functional biotextile that has improved functionality and various desirab...  
WO/2021/141712A1
A method for manufacturing bleached pulp from a feedstock that includes recycled paper. The method includes steps of: (1) impregnating the feedstock with cooking liquor to yield an impregnated material having a liquor-to-fiber mass ratio...  
WO/2021/137524A1
According to the specification, aramid pulp and a method for manufacturing same are disclosed. The aramid pulp exhibits improved productivity and physical properties and excellent interfacial adhesion to different materials because oille...  
WO/2021/102498A1
The invention relates to a method for obtaining cellulose fibres from fibrous biomass (10), in which: the biomass (10) is first subjected to thermo-pressure hydrolysis, preferably with steam explosion, in a thermo-pressure hydrolysis pla...  
WO/2021/099679A1
The present invention relates to a method for controlling discharges of nitrogen compounds in the production of cellulose carbamate (CCA). Dissolving pulp (DP) or kraft pulp is produced at a pulp mill, and the DP or kraft pulp is activat...  
WO/2021/097270A1
A process for the production of cellulose, lignocellulosic sugars, lignosulfonate, and ethanol from lignocellulosic biomass. The process comprises steaming, pretreatment, chemical recovery, saccharification, and optionally fermentation. ...  
WO/2021/072342A1
Some variations provide a process for impregnating a biomass feedstock with a reaction solution, comprising: providing a biomass feedstock that contains non-condensable gases within biomass pores; introducing a condensable vapor into the...  
WO/2021/049204A1
Provided is a cooking accelerator that is safe and has an excellent cooking promotion effect. The cooking accelerator according to the present invention is characterized by containing: a polyphenol compound which is tannin or a hydrolysa...  
WO/2020/249992A9
The high alpha and high Intrinsic Viscosity pulp production apparatuses, methods and systems (hereinafter "high-A high-IV pulp production") disclosed herein provide for pulp processing used in connection with Kraft Processes (KP) or Pre ...  
WO/2021/040956A1
The present disclosure provides compositions and methods for treating volatile fatty acids and bacteria capable of producing volatile fatty acids. The compositions can convert acid-producing bacteria environments to nitrate- reducing bac...  
WO/2021/024025A1
An embodiment of the current invention provides a hopper for preparing empty fruit bunch (EFB) fibers in a paper and/or pulp production process. The hopper comprises an inlet, one or more pipes comprising holes and an outlet. The inlet o...  
WO/2021/024026A1
An embodiment of the current invention provides a method for preparing empty fruit bunch (EFB) fibers in a paper and/or pulp production process. The method comprises the following steps: EFB fibers are delivered and/or loaded into a hopp...  
WO/2021/012616A1
A method for improving the fiber softness of high-yield pulp, comprising the following steps: treating the high-yield pulp using ozone, and treating the high-yield pulp using cellulase. Surface lignin is removed using ozone, enabling the...  
WO/2021/006798A1
A method for the manufacturing of cellulose dissolving pulp from virgin wood cellulose and crude recycled textile cellulosic material by charging recycled textile material to a brownstock washing step, an oxidative alkaline pulp bleachin...  

Matches 1 - 50 out of 2,046