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Matches 51 - 100 out of 2,331

Document Document Title
WO/2015/105882A1
An improved semichemical pulping process is disclosed to reduce washing costs and recovery process costs, while producing equivalent pulp and paper products. In some variations, the invention provides a process for producing a paper prod...  
WO/2015/104262A1
The present invention refers to a process for catalytic fractionation of plant biomass, producing non-pyrolytic bio-oil from lignocellulosic materials in addition to a high-quality pulp comprising cellulose and hemicellulose as a byprodu...  
WO/2015/074120A1
A nanocellulose material of plant origin comprising nanocellulose particles or fibres derived from a plant material having a hemicellulose content of 30% or higher (w/w) (calculated as a weight percentage of the lignocellulosic component...  
WO/2015/075277A1
The invention relates to a process for the preparation of a sugar product from lignocellulosic material, comprising the following steps: a) optionally, pretreatment of the lignocellulosic material; b) optionally, washing of the optionall...  
WO/2015/077294A1
The present invention provides a process for fractionating lignocellulosic biomass, comprising: digesting a biomass feedstock in the presence of a solvent for lignin, an acid, and water, to produce cellulose-rich solids; separating and w...  
WO/2015/067446A1
Method for delignifying and bleaching pulp, comprising a first bleaching stage using hydrogen peroxide in the presence of a molybdate or a tungstate in an acidic aqueous mixture, followed by a second bleaching stage using hydrogen peroxi...  
WO/2015/061804A1
Described herein is a process for conversion and upgrading of biomass to products. The process involves converting the biomass to primary lignin-derivatives and primary cellulose/hemicellulose derivatives, catalytically treating the prim...  
WO/2015/061802A1
Described herein are processes for one-step delignification and hydrodeoxygenation of lignin fraction a biomass feedstock. The lignin feedstock is derived from by-products of paper production and biorefineries. Additionally described is ...  
WO/2015/036357A1
The invention relates to a method for producing paper with at least one fibrous material, a polymer, water and calcium oxide and/or calcium hydroxide, comprising the steps of disintegrating the fibrous material with water in a pulper for...  
WO/2015/037647A1
 The purpose of the present invention is to provide a technique for appropriate management of the hydrolysis process during production of dissolving kraft pulp, and appropriate control of the dissolving kraft pulp production process. F...  
WO/2015/027042A1
A mobile processing unit may include a mobile platform assembly, and a fiber separation assembly supported on the mobile platform assembly. The fiber separation assembly may be configured to receive tropical plant stalks and at least par...  
WO/2015/021130A1
A process for treating a cellulosic material comprising extracting hemicellulose from the cellulosic material with an extractant comprising a cellulose solvent and a co-solvent to selectively extract hemicellulose therefrom and separatin...  
WO/2015/018711A1
The present invention is directed to a process for producing spinnable cellulose at least in part from citrus fruits, such as oranges and lemons. In a preferred embodiment, cellulose is extracted from citrus fruits, discarded by the citr...  
WO/2015/014364A1
A method of processing lignocellulosic biomass comprising: - Providing soft lignocellulosic biomass feedstock, - Pretreating the feedstock at pH within the range 3.5 to 9.0 in a single-stage pressurized hydrothermal pretreatment to log s...  
WO/2015/010179A1
A method of reducing chloride and potassium ion concentration in a pulp mill chemical recovery cycle, in which electrostatic precipitator ash is produced in a recovery boiler. A mixture (16) of the ash (10) and water (12) is separated in...  
WO/2015/013146A1
The invention provides methods and compositions for measuring the formation of scale within a process system. The method involves measuring changes in the cell fouling as reflected on the refraction index measurements of a liquid medium ...  
WO/2015/009145A1
The present invention is directed at a process for fractionating lignocellulosic biomass for the purpose of reducing processing costs, increasing delignification, reducing side- reactions, in particular reducing hemicelluloses degradatio...  
WO/2015/005344A1
Provided is a method for adding an antifoam agent that can easily improve the degree of foam suppression obtained with respect to the amount of antifoam agent added in an aqueous system that is markedly foaming such as in a craft pulp pr...  
WO/2015/004296A1
The invention relates to a method for the hydrolysis of lignocellulosic biomass, comprising a pre-treatment stage using ionic liquids and a subsequent hydrolysis treatment using acidic reagents. The method of the invention demonstrates t...  
WO/2014/193763A1
Processes are described for fractionating lignocellulosic biomass into cellulose, hemicellulose, and lignin, comprising fractionating lignocellulosic biomass in the presence of a solvent for lignin (such as ethanol), a hydrolysis catalys...  
WO/2014/179673A1
A process for treating a cellulosic material comprising extracting the cellulosic material with an extractant to selectively extract hemicellulose therefrom and separating the extracted hemicellulose to form a cellulosic product comprisi...  
WO/2014/179702A1
A process for converting a starting material to a purified pulp material, comprising removing lignin from a starting material to form a wet pulp comprising at least 5 wt.% water, extracting hemicellulose from the wet pulp with an extract...  
WO/2014/170546A1
A method of producing regenerated cellulose and hemicellulose from a fibre pulp which is prepared by using chemical cooking. Hemicellulose and, correspondingly, cellulose is separated from the pulp, in order to form separate fractions, b...  
WO/2014/164581A1
Lignocellulosic biomass pretreated with ammonia where the concentration of the biomass in the reaction mixture is reduced over time was found to produce more sugars following saccharification, as compared to equivalent biomass pretreated...  
WO/2014/159887A1
Digestion of cellulosic biomass solids can be enhanced in the presence of a phenolic solvent. Methods for digesting cellulosic biomass solids can comprise providing cellulosic biomass solids containing up to about 50% water by mass in a ...  
WO/2014/159892A1
Digestion of cellulosic biomass solids can be enhanced in the presence of a phenolic solvent. Methods for digesting cellulosic biomass solids can comprise providing cellulosic biomass solids in a digestion medium comprising a phenolic so...  
WO/2014/159900A1
A novel method of separating bio oil (pyrolysis oil) into oxygenated rich species and lignin/phenolic based species in a highly efficient manner is provided. Lignin and phenolic fractions can be separated from light oxygenates from bio o...  
WO/2014/157493A1
The present invention addresses the problem of providing a technique for manufacturing a high-quality dissolving kraft pulp in a high yield. A process for manufacturing a dissolving kraft pulp which comprises (a) a step for subjecting wo...  
WO/2014/159877A1
Digestion of cellulosic biomass solids can be enhanced in the presence of a phenolic solvent. Methods for digesting cellulosic biomass solids can comprise providing cellulosic biomass solids in a digestion medium comprising water and an ...  
WO/2014/147293A1
The field concerned is NFC or MFC production using chemical pulping. Herein is provided an environmentally friendly and improved pulping and papermaking method and dissolution and digestion method of cellulosic mate- rial. It is especial...  
WO/2014/148611A1
A production method for a black liquor according to the present invention includes cooking a tobacco raw material in alkaline conditions to obtain a black liquor. A production method for a liquid containing a flavoring component accordin...  
WO/2014/140852A3
A pulp fiber with an enhanced carbonyl content resulting in improved antimicrobial, anti-yellowing and absorptive properties. Methods for making the kraft pulp fiber and products made from it are also described.  
WO/2014/140643A1
The present invention relates to an improved 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 addi...  
WO/2014/132056A1
There is described a method of fractionating a biomass material comprising: (i) blending the biomass material with an acid catalyst to form a slurry; (ii) mixing the slurry with an organosolv reagent optionally under an inert atmosphere ...  
WO/2014/132055A1
There is described a method of processing biomass which comprises the steps of: (i) processing biomass material in an aqueous system in the presence of an oxalic acid catalyst to produce a slurry; (ii) subjecting the slurry to an acidifi...  
WO/2014/126471A1
Lignocellulosic biomass can be fractionated for the purpose of increasing cellulose purity in the pulp, increasing native lignin content of the isolated lignin, and improving cellulose hydrolysis, by performing the steps of: (a) extracti...  
WO/2014/122533A3
A bleached softwood kraft pulp fiber with high α-cellulose content and a low CED viscosity is provided, A surfactant treated fiber useful in the production of chemical derivatives is also described. Methods for making the kraft pulp fib...  
WO/2014/118699A1
The invention relates to a process for obtaining pulp from vegetable waste and to the resulting product. The process comprises the following steps: a) breaking the fibres of the vegetable waste using a mechanical process; b) releasing th...  
WO/2014/113884A1
Described herein are processes for the production of a cellulose pulp and processes for isolating cellulose from cellulose-containing biomass. The processes of the invention comprises contacting the biomass with a source of anions and a ...  
WO/2014/105997A1
In some variations, the invention provides a process for producing purified cellulose, comprising: providing a feedstock comprising lignocellulosic biomass; contacting the feedstock with sulfur dioxide, water, and a solvent for lignin, t...  
WO/2014/101867A1
Provided is an ultrahigh-viscosity refined cotton production technology, comprising material selection, cotton opening, impregnation, pretreatment, cooking, bleaching and rolling, and drying. By adding the pretreatment procedure, a suffi...  
WO/2014/105601A1
The disclosed invention is a modification of the AVAP®? technology, employing CO2 (or derivatives thereof) rather than SO2 in the cooking liquor. In some variations, the invention provides a process for fractionating cellulosic biomass ...  
WO/2014/105610A1
In some variations, the invention provides a process for fractionating biomass, comprising: in a digestor, fractionating a biomass feedstock in the presence of a solvent for lignin, sulfur dioxide, and water, to produce a liquor containi...  
WO/2014/094104A1
The present disclosure related to Organosolv processes for recovery of lignin derivatives from lignocellulosid feedstocks chosen from i) hardwood, ii) softwood, and iii) annual fibre. The lignin derivatives from each of these feedstocks ...  
WO/2014/090609A1
The invention relates to a method for producing cellulose from material containing lignocellulose by means of sulfite decomposition or sulfate decomposition in the presence of a salt of dithionous acid, characterized in that the salt of ...  
WO/2014/072584A1
This invention relates to a method for treating liquid flows at a chemical pulp mill. The method comprises producing unbleached pulp in a brown stock preparation unit (20), dosing first acidification chemical to the unbleached pulp flow ...  
WO/2014/072394A1
The invention relates to a process for the preparation of a fermentation product from ligno-cellulosic material, comprising the following steps: a) optionally pre-treatment of the ligno-cellulosic material; b) optionally washing of the o...  
WO/2014/072389A1
The invention relates to a process for the preparation of a fermentation product from ligno-cellulosic material, comprising the following steps: a) optionally pre-treatment of the ligno-cellulosic material; b) optionally washing of the o...  
WO/2014/070580A1
Digestion of cellulosic biomass solids may be complicated by release of lignin therefrom. Methods for digesting cellulosic biomass solids may comprise: heating cellulosic biomass solids and a digestion solvent in the presence of molecula...  
WO/2014/063260A1
The present invention relates to a method for the industrial-scale processing of green rye in order to extract cellulose fibres that can be used notably in the preparation of paper pulp, in the manufacture of non-woven products, to provi...  

Matches 51 - 100 out of 2,331