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Matches 1 - 50 out of 4,443

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/2022/090058A1
The present invention relates to a method of controlling the drying of cellulose pulp in a drying step of a pulp production process. The method comprises measuring a plurality of process parameters in at least one previous process step; ...  
WO/2022/087431A1
In some aspects, calcium carbonate is mixed with an aqueous solution of cellulose or another hydrophilic polymer and then water is removed, leaving an unagglomerated calcium carbonate-cellulose mixture for storage, transport, or incorpor...  
WO/2022/053865A1
A method of manufacturing a partially-dried sheet comprising, consisting essentially of, or consisting of, microfibrillated cellulose suitable for use as a binder, or a dried sheet comprising, consisting essentially of, or consisting of,...  
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/2022/053869A1
Method of making a filler composition comprising microfibrillated cellulose and one or more microporous inorganic particulate material and methods of making papermaking furnishes and paper products comprising microfibrillated cellulose a...  
WO/2022/050883A1
System for producing cellulose pulp comprising a cooking device configured to digest wood chips to produce cellulose pulp, a screening arrangement configured to screen the cellulose pulp, a post-screening washing arrangement, an oxygen d...  
WO/2022/042842A1
The present invention relates to an efficient process for the preparation of nanocelluloses using mixtures of ammonium formate and at least one acid as reactant and solvent as well as to novel modified nanocelluloses and their applications.  
WO/2022/034263A1
An arrangement for measuring the distance between at least one seal bar (20) and a rotating drum (10) of a drum displacement washer, comprising at least one sensor element (30) positioned inside the rotating drum (10) and configured to p...  
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/2022/028385A1
The present invention belongs to the technical field of pulping and papermaking, and relates to a short-procedure ECF bleaching process X/D-Z-P (or X/Z-D-P) for sulfate wood pulp. The process comprises the following steps: (1) sequential...  
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/2022/018193A1
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/2022/006644A1
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/2021/253107A1
The present invention is related to a method to produce a treated condensate substantially free of organic matter by treating the condensate with at least one of physical, chemical, chemical-physical treatment or combinations thereof. Fu...  
WO/2021/255335A1
The invention relates to a method for pitch control and/or removal during bleaching of cellulosic fibres. Cellulosic fibres are obtained from a pulping process and formed into an aqueous cellulosic fibre suspension, and bleaching of the ...  
WO/2021/237436A1
Provided is a papermaking control system for maintaining the stability of the quantitative weight, thickness and moisture content, the system comprising: a feeding setting for selecting a papermaking raw material and providing a control ...  
WO/2021/242161A1
Alignment device (1) for adjusting a position of a curved shower bar nozzle flange (2) relative a permeable outer cylindrical surface (3) of a drum roll (4) of for instance a drum washer. The alignment device comprises a body element (8)...  
WO/2021/228642A1
The present invention is in relation to use of carboxymethylated polylysines as a dispersing agent and/or chelating agent. The present invention is also in relation to detergent compositions and peroxy bleaching compositions comprising c...  
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/2021/214300A1
The present invention relates to solid compositions comprising a fibrous material of natural origin obtained from plants, wherein the fibrous material comprises micro-scaled and/or nano-scaled fibril agglomerates, and an alditol; a metho...  
WO/2021/216663A1
A piece of natural plant material is subjected to one or more chemical treatments to remove substantially all lignin therefrom, thereby allowing the extraction of delignified, cellulose-based fibers. For example, the natural plant materi...  
WO/2021/213740A1
In a process/an apparatus for producing bleached cellulose in which a lignin- and cellulose-containing suspension is subjected to at least one process step for oxygen-assisted bleaching in a reactor, such as alkaline oxygen delignificati...  
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/2021/206601A1
A pulp distribution compartment arrangement (20) comprises a distribution compartment (24) and a distributer screw (30). The distribution compartment has an exit opening (26) with an elongated shape with a main extension in a first direc...  
WO/2021/198557A1
A method of controlling viscosity in peroxide bleaching of a cellulose pulp, comprising treating the cellulose pulp with disodium 3,3'-((2-ethylhexyl)azanediyl)dipropionate as a chelating agent to chelate metals present in the pulp; pero...  
WO/2021/185704A1
There is provided a process for chemically pretreating reclaimed cellulose fibres to be used in the production of moulded bodies from regenerated cellulose, wherein the pretreatment includes one stage, in which stage acid metal removal a...  
WO/2021/161494A1
In vertical concentrating washing machines, processed raw material is transported upward but ends up containing shower water. That is, the moisture content ends up increasing during the transport process even though the material has been...  
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/2021/152958A1
The purpose of the present disclosure is to provide a method for producing a pulp fiber for carboxylated cellulose nanofibrillation use, whereby it is possible to form a carboxylated cellulose nanofiber having an excellent balance betwee...  
WO/2021/130102A1
The invention relates to a process for catalytically oxidising an unbleached cellulose paste, comprising the following steps: supplying to a reactor an unbleached cellulose paste; supplying a heterocyclic nitroxyl radical; supplying chlo...  
WO/2021/123504A1
The present invention relates to a process for manufacturing a fibre web, such as paper, board, tissue or the like. In the process bleached cellulose-containing fibres are suspended into process water in order to prepare a fibre stock, w...  
WO/2021/118425A1
Method for treating biomass, comprising compressing and dewatering (62) the biomass to a dry solid content of DS1 % by weight; feeding (63) compressed biomass to a treatment vessel; adding (64) a treatment liquid to said treatment vessel...  
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/2021/097280A1
A system and method are provided for predictive control of brown stock treatment at a pulp mill. Various online sensors generate output signals representative of actual values for respective process characteristics, each of which are dir...  
WO/2021/094439A1
There is provided a method of producing a sheet having a density of 0.6-1.3 g/cm3 measured according to ISO 534:2011, the sheet comprising chemically modified cellulose fibres, wherein the method comprises: a. providing chemically modifi...  
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/2021/082306A1
The present invention relates to an ionic-liquid-based ECF bleaching protective agent for paper pulp. The present application involves pre-treating eucalyptus kraft pulp with the ionic-liquid-based bleaching protective agent, followed by...  
WO/2021/069696A1
There is provided a method of producing a paper, comprising the steps of: a) providing a pulp having a Schopper-Riegler (SR) number measured according to ISO 5267-1:1999 of 25-50, which pulp comprises at least 70% by weight sulphate or s...  
WO/2021/057159A1
The present invention relates to the field of paper pulp processing. Disclosed is a processing technology for removing adhesive substances from paper pulp. A preparation method mainly comprises: first performing heat dispersion on a pulp...  
WO/2021/061723A1
Paper products can comprise a first plurality of fibers that are hardwood fibers and a second plurality of fibers that include softwood fibers and surface enhanced pulp fibers (SEPF). The paper product can include one or more first fiber...  
WO/2021/053446A1
A high efficiency bleaching method for cellulosic pulp includes: (a) providing a charge of aqueous cellulosic pulp to a bleaching vessel at a consistency of from 10% to 30% along with a peroxy bleaching agent and an alkaline agent effect...  
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/2021/044321A1
The present invention is directed to fluff pulp having a Kappa number in the range of from 5 to 18 and having, when in the form of a dry sheet, ISO brightness in the range of from 30 to 60% and having a specific volume in the dry defibra...  

Matches 1 - 50 out of 4,443