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WO/2017/082395A1 |
Provided is a method for dehydrating a dispersion of a chemically modified pulp (oxidized pulp, carboxymethylated pulp, or cationized pulp) obtained by chemically modifying a pulp feedstock, characterized by dehydrating the dispersion of...
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WO/2017/078084A1 |
In order to provide cellulose nanofibers which are reduced in foreign-matter content and have high transparency, a cellulose nanofiber dispersion is filtered by a filtration method that comprises a step in which the cellulose nanofiber d...
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WO/2017/060565A1 |
A bleaching apparatus comprises a measurement chamber has a first substance, the amount of the first substance in the measurement chamber being known. A dosing unit inputs a second substance to the measurement chamber for causing a chemi...
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WO/2017/055504A1 |
The present invention relates to compositions for use in an aqueous pulp bleaching process, comprising one or more alkaline earth metal oxides and/or one or more alkaline earth metal hydroxides; one or more alkaline earth metal salts; an...
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WO/2017/053564A1 |
An especially robust compound and its derivative metal complexes that are approximately one hundred-fold superior in catalytic performance to the previously invented TAML analogs is provided having the formula (I) wherein Y1, Y2, Y3 and ...
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WO/2017/051030A1 |
The present invention provides for a process for producing dry, water-dispersible, non-surface modified nanocellulose particles or a powderous composition r comprising said particles comprising the steps of: i. providing a first suspensi...
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WO/2017/048171A1 |
A washing arrangement for washing and dewatering cellulose pulp, comprising a rotary drum (5) with a plurality of external compartments (6) on the drum for the pulp to be washed, which compartments are defined by axial compartment walls ...
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WO/2017/046455A1 |
In a method for producing nanofibrillar cellulose starting from cellulose pulp (P), where cellulose is in native form, the cellulose pulp is prebeaten by circulating it in form of aqueous suspension of fibres through a refining gap (G) f...
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WO/2017/044030A1 |
The present invention relates to a novel sulfite dissolving pulp suitable for high tenacity applications having: a) a viscosity of 700-1000 ml/g; b) a R18 value of 93-95.5%; c) a R10 value in of 92-94%; d) a PD of 9-15; e) a proportion o...
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WO/2017/037349A1 |
Method of dewatering nanocellulose and other water soluble of hydrophilic polymers. The method comprises providing an aqueous suspension formed by nanocellulose in water, said nanocellulose having free hydroxyl groups; mixing the aqueous...
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WO/2017/033125A1 |
Method for producing microfibrillated cellulose(MFC), wherein the method comprising the steps of: Pre-treating of chemical pulp, such that, the pulp reaches a Schopper-Riegler (SR) value above 50, and refining the pulp, at a consistency ...
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WO/2017/035535A1 |
Some variations provide a process for producing a nanocellulose material, comprising: providing a biomass feedstock comprising a bleached or unbleached pulp material; fractionating the feedstock in the presence of an acid, a solvent for ...
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WO/2017/034774A1 |
Enzyme compositions comprising laccase, lipase, cationic polymer, and optionally laccase activator, for paper making application are disclosed. It also relates to the use of the enzyme composition to improve dry strength property of a pa...
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WO/2017/025862A1 |
Disclosed is a method of reducing the color of lignosulfonates, which is carried out by adding a reducing agent and a chelating agent. The lighter color lignosulfonate solutions prepared by the present process exhibits very low staining,...
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WO/2017/011722A1 |
A method (10) for cleaning fibers from a contaminated article is disclosed. The method (10) can include pulping (20) a contaminated article to separate the fibers or filaments from the contaminated article in a first solution to provide ...
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WO/2017/011726A1 |
A method (10, 110) for cleaning fibers from a contaminated article is disclosed. The method (10, 110) can include providing a contaminated article comprising contaminates and at least one of fibers and filaments. The method (10, 110) can...
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WO/2017/007614A1 |
The current method relates to compositions and methods for inhibiting the deposition of organic contaminants in pulp and papermaking systems. The current method also relates to controlling the deposition of organic contaminants on equipm...
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WO/2016/202933A1 |
The present invention provides for a dispersion containing cellulose particles dispersed in a continuous liquid phase comprising a first and a second continuous liquid phase, wherein the first continuous liquid phase consists of a liquid...
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WO/2016/198890A1 |
The present invention relates to a method of generating chlorine dioxide from chlorite salts in the presence of a manganese ion-containing complex, a method of treating a substrate with a chlorine-containing oxidant in the presence of a ...
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WO/2016/198891A1 |
The present invention relates to a method of generating chlorine dioxide from chlorite salts in the presence of an iron ion-containing complex, a method of treating a substrate with a chlorine-containing oxidant in the presence of an iro...
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WO/2016/189205A1 |
The invention relates to a method for reducing pulp viscosity in production of dissolving pulp. The method comprises producing cellulose pulp, whereby the obtained cellulose pulp has a cellulose content of at least 90 %, and bleaching th...
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WO/2016/185332A1 |
A paper or board material containing pulp fibre or wood fibre or non-wood fibre and made from a stock solution, having a first and second side, wherein the paper material is provided with a surface coating layer on at least one side ther...
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WO/2016/185396A1 |
A method for removing or reducing bacterial growth or bio-film formation in a paper or paperboard making process, wherein the method comprises introducing gas bubbles, having a diameter of less than 0.5 micrometer, into the paper or pape...
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WO/2016/179846A1 |
A zero discharge process of pulping waste liquid of all-cotton straw chemi-mechanical pulp. The process comprises: firstly performing front-end high concentration extraction of pulping waste liquid, then performing evaporation and concen...
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WO/2016/183453A1 |
In some embodiments, the present invention provides methods including the steps of providing cellulosic material, associating the cellulosic material with an organic acid (e.g., lactic acid) to form a mixture, and heating the mixture to ...
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WO/2016/179845A1 |
A pigment decomposition and pigment extraction production process for all-cotton straw chemi-mechanical pulp sequentially comprises: raw material washing, raw material cooking, squeezing, pulp washing, filament rolling, drug addition, im...
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WO/2016/182867A1 |
A method of producing bleached microcrystalline cellulose which method comprises neutralizing or alkalizing an acidic microcrystalline production reaction mixture slurry, typically produced by acid hydrolysis or by electronic beam irradi...
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WO/2016/177534A1 |
Disclosed is a method of treating cellulose pulp for use in regeneration of cellulose including the steps of: i) preparing an alkaline metal hydroxide solution having a concentration of 4-10% by weight; ii) adding cellulose pulp to form ...
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WO/2016/176759A1 |
The present description relates to a process of producing a dry mixed product comprising cellulose filament (CF) and a carrier fibre, and a dry mixed product of re-dispersible cellulose filament and a carrier fibre that permits the CF to...
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WO/2016/173884A1 |
The invention relates to a method for reducing or preventing the decomposition of a composition Z, containing Z1 a salt of dithionous acid in an amount in the range of 50 to 100 wt% and possibly Z2 an additive selected from the group con...
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WO/2016/172616A1 |
The present invention provides, among other things, methods including the steps of providing a cellulosic biomass, associating the cellulosic biomass with an organic liquid to form a mixture, treating the mixture to reduce the moisture c...
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WO/2016/159403A1 |
Provided is a pulp-bleaching method which can simultaneously bleach pulp using chlorine dioxide (ClO2) and remove transition metals using a chelate compound. According to the present invention, as the chlorine dioxide (ClO2) bleaching an...
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WO/2016/128223A1 |
It is disclosed a process to transfer a ligno-cellulosic feedstock from a low pressure zone to a high pressure zone. A slurry the ligno-cellulosic feedstock is first provided, which is then subjected to a multi-step liquid removal proces...
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WO/2016/128224A1 |
It is disclosed a process to transfer a ligno-cellulosic feedstock from a low pressure zone to a high pressure zone. A slurry the ligno-cellulosic feedstock is first provided, which is then subjected to a multi-step liquid removal proces...
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WO/2016/128221A1 |
It is disclosed a process to transfer a ligno-cellulosic feedstock from a low pressure zone to a high pressure zone. A slurry the ligno-cellulosic feedstock is first provided, which is then subjected to a multi-step liquid removal proces...
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WO/2016/120612A1 |
A process for forming a dissolving grade cellulose-containing pulp, comprising: providing a cellulose feedstock comprising at least one non-wood material; treating the cellulose feedstock in a chemical cooking process to form a cellulose...
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WO/2016/120531A1 |
The invention relates to methods monitoring the chemical load of wastewater in manufacturing mills and industrial processes, such as in a pulp mill.. Such a process has a number of sub-processes, at least some of which have identifiable ...
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WO/2016/106473A1 |
A pulp made by using Spirogyra and a preparation method therefor, which belong to the technical field of papermaking. With regard to the method, Spirogyra is used as a raw material and a pulp is obtained by the working processes of crush...
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WO/2016/090455A1 |
A method and apparatus for controlling a cellulosic pulp process for producing a pulp product having a desired pulp property is disclosed. The method involves illuminating an in-process portion of pulp using a first wavelength of light, ...
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WO/2016/090474A1 |
The present invention relates to novel polypeptides and enzymes (e.g., thermostable proteins and enzymes) having activities relating to biomass processing and/or degradation (e.g., cell wall deconstruction), as well as polynucleotides, v...
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WO/2016/090473A1 |
The present invention relates to novel polypeptides and enzymes (e.g., thermostable proteins and enzymes) having activities relating to biomass processing and/or degradation (e.g., cell wall deconstruction), as well as polynucleotides, v...
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WO/2016/086019A1 |
A structured tissue product produced using a structured or imprinting fabric and a press roll. The tissue product has at least two plies, and has a crumple resistance of less than 30 grams force and an average peak to valley depth of at ...
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WO/2016/081819A1 |
The present invention provides aqueous compositions for treating fluff pulp comprising (i) one or more acrylic acid polymers containing phosphinate groups and having a weight average molecular weight of from 1,000 to 6,000 and (ii) from ...
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WO/2016/079140A1 |
The invention relates to a process for preparing a cellulosic sponge comprising treating an aqueous suspension of cellulose fibers with periodate; adjusting the pH of the resulting dialdehyde cellulose fibers suspension to 2.5 to 5.5; fr...
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WO/2016/080895A1 |
The present invention relates to a process for the production of treated pulp comprising the steps of: i. providing a fibre source material; ii. subjecting the fibre source material to pre-hydrolysis; iii. subjecting the pre-hydrolysed f...
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WO/2016/079045A1 |
The present invention relates to the removal of hemicelluloses from paper-grade alkaline pulp thereby upgrading the pulp e.g. into dissolving-grade pulp using a combination of enzyme treatment, hot caustic extraction and optionally one o...
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WO/2016/072919A1 |
The invention relates to an improved two vessel cooking system, wherein the first vessel is an atmospheric impregnation vessel and the second vessel is a pressurized digester, where hot black liquor is finally flashed off inside the impr...
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WO/2016/073610A1 |
The present invention relates to a thermophilic and alkalophilic xylanase for bleach boosting of paper pulp. The invention further relates to a bleach boosting method comprising treatment of paper pulp with the thermophilic and alkalophi...
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WO/2016/069326A1 |
A short oxygen delignification method employs a continuous dynamic mixing assembly. Provided is a mixing chamber having an interior wall which is generally symmetrical about a central longitudinal axis. At least one inlet is used to intr...
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WO/2016/067180A1 |
The present invention relates to a method for manufacturing microfibrillated polysaccharide, preferably microfibrillated cellulose. The invention also relates to microfibrillated cellulose obtainable by the method and use of the microfib...
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