Document |
Document Title |
WO/2009/068525A1 |
The present invention relates to a method for utilizing a wood hydrolysate obtained from a hydrothermal treatment of a wood material method comprises the steps of providing a wood material, treating the wood material by means of an aqueo...
|
WO/2009/066007A2 |
Process for defibering a fibrous raw-material. According to the process a raw-material is contacted with a pulping liquor that contains an organic solvent for producing a defibrated fibrous raw-material. Cooking liquor contains by its we...
|
WO/2009/067231A1 |
A method for Kraft pulping employing a modified cooking process in conjunction with polysulfide pulping technologies to obtain higher pulping yields than obtained in the prior art. The total required alkali charge (polysulfide liquor) is...
|
WO/2009/063122A1 |
The invention deals with a method and an equipment to degrade the natural structure of a lignin containing fibre based material and/or to dissolve the lignin and other components partially or totally by using essentially lactic acid, lac...
|
WO/2009/056017A1 |
A process for comprehensive utilization of stalks of grass-type plants, includes (1) cooking the stalks of said plants to obtain a high-hardness pulp with a potassium permanganate value of 16-28; (2) pressing the high-hardness pulp to ob...
|
WO/2009/050336A1 |
The present invention relates to a method for treating pectin-containing ligno- cellulosic raw materials in a high-yield pulping process utilizing one or more treatment stages at alkaline conditions. The invention provides a method for c...
|
WO/2009/046283A1 |
An apparatus for treating plant biomass is described herein. Generally, the apparatus includes a pressurizable vessel and a heating element in thermal communication with the vessel. Also described herein are methods of treating plant bio...
|
WO/2009/015555A1 |
An unbleached pulp and bleached chemical pulp using the grass plant as raw materials, and preparation method thereof. The unbleached pulp is provided with the breaking length 5000-7500m, tearing degree 230-280mN, fold number 40-90, brigh...
|
WO/2009/015556A1 |
Provided is a process for producing pulp from grasses, which comprises cooking grasses material to give high hardness pulp that has a hardness of K value 16-28 and a beating degree of 10-24°SR, shoving and washing the resulting high har...
|
WO/2009/015614A1 |
Method and equipment for production of fermentable saccharides, ethanol, furfural, furane, lignin, acetic acid and formic acid from lignocellulosic and amylaceous materials. The method comprises one-stage or two-stage continuous thermo-c...
|
WO/2009/015704A1 |
The invention relates to bleached fibrous material from wood having a degree of brightness, according to ISO, of > 80% and a buIk of more than 1.3 cm3/g, a breaking length of more than 7.5 km at 15 °SR and a lignin content of at least 1...
|
WO/2009/015699A1 |
The invention relates to unbleached lignocellulosic fibrous material from annual plants, having a tear length of more than 4.5 km at 20 °SR and a lignin content of at least 8% in relation to the unbleached oven-dry fibrous material and ...
|
WO/2009/003606A1 |
The invention relates to a high-strength and wear-resistant fibrous material and to a method for the production thereof. According to said method, a natural fibre material is solubilised in an alkaline manner. The fibrous material is tre...
|
WO/2009/003286A1 |
A method for pulping a fibrous lignocellulosic material includes a pretreatment step wherein the lignocellulosic material is reacted with a chelating agent selected from the group consisting of amino acids, monocarboxylic acids and polyc...
|
WO/2008/155634A1 |
The invention is directed towards a method of pretreatment of a lignocellulose containing biomass so as to make the biomass amenable to enzymatic digestion. More particularly, the instant application discloses a single step separation of...
|
WO/2008/155639A2 |
The present invention provides a process and System for Separation of biomass components into individual components such as cellulose, hemicellulose and lignin. The present invention provides a process for separating lignin in its native...
|
WO/2008/153565A1 |
The present disclosure relates to producing paper or paperboard having improved stiffness and strength, compared to the conventional paperboard at the same basis weight. It also discloses a method of wood pulping having a significantly i...
|
WO/2008/154073A1 |
A method of wood pulping having a significantly increased yield is disclosed. Wood chips are chemically pulped to a high kappa number, providing a first accepts component and a first rejects component. The first rejects component is subj...
|
WO/2008/141463A1 |
A method for increasing the quality of cellulosic fibres used in forming dissolving pulp wherein the hemicellulose content of a pulp is reduced by treating the fibres with a liquor which includes hydrogen peroxide and ammonia.
|
WO/2008/138429A1 |
The invention relates to a lignocellulose fibre consisting of wood with a breaking length of more than 6 km at less than 14.5 and preferably between 12 and 14 °SR and a specific volume of at least 1.3 cm3/g in relation to oven-dry fibre...
|
WO/2008/138424A1 |
The invention relates to the waste lye of a sulphite pulp, containing sodium and sulphur in a ratio of up to 1.8 : 1 in said oven-dry waste lye.
|
WO/2008/141121A1 |
A method of monitoring and inhibiting scale precipitation and deposition from spent liquor in pulp mill evaporators and concentrators is disclosed. The method includes connecting a black liquor deposition monitor to a pulp mill evaporato...
|
WO/2008/138428A1 |
The invention relates to the production of a chemical solution comprising less than 25 % sulphite (calculated as Na2SO3) in relation to the oven-dry quantity of the lignocellulose raw material, said method having the following steps: mix...
|
WO/2008/129048A1 |
The present invention relates to a method for the production of bleached wood particles, and to a method for the production of wood materials ranging from light-toned to white, which are produced from the bleached wood particles.
|
WO/2008/106895A1 |
A process for refining and producing cellulose, lignin and xylose from biomass material comprises the following steps: pulverizing and screening the biomass material; and then dipping the biomass material in organic acid with lower boili...
|
WO/2008/106811A1 |
The invention describes a method for the direct production of molecules with a minimum molecular weight of 78 g/mol by means of the breakdown of lignin, lignin derivatives, lignin fragments, and/or lignin-containing substances or mixture...
|
WO/2008/104074A1 |
The present invention relates to a composition comprising water, more than 30 % w/w of calcium hydroxide, and ≥ 0.2 % w/w dispersant. A process for preparing such a composition is also disclosed. The composition which can be in the for...
|
WO/2008/103124A1 |
The present invention relates to reducing the liquid/wood ratio at the top of a vapour phase digester (1) in a continuous digester plant. Chips that are to be cooked in the vapour phase digester (1) are fed with a mixture of chips and li...
|
WO/2008/095252A1 |
A method for fractionating a lignocellulosic material, the method comprising; contacting (2) the lignocellulosic material with an ionic liquid (3) and dissolving the lignocellulosic material therein, providing a second liquid (7) which i...
|
WO/2008/098032A2 |
The present invention provides a method for converting lignocellulosic material into biofuel. In particular embodiments, the method comprises pre-treating lignocellulosic material by dissolving the material in ionic liquids. The pretreat...
|
WO/2008/077450A1 |
The invention relates to a method for the production of a tissue web (1) produced from a material suspension comprising fibers. To this end, the volume and the tear length is to be improved, with minimized freeness degree, such that the ...
|
WO/2008/076055A1 |
The present invention relates to a process of producing pulp comprising digesting lignocellulose-containing cellulosic fibers in a digestion liquid, wherein the fibers are treated in the presence of at least one chelating agent capable o...
|
WO/2008/074220A1 |
A preparation method of a bamboo pulp comprises the steps of preparing material, cooking and bleaching. In the step of preparing material, bamboo material is obliquely cut at the angle of 10-85ºinto bamboo chip with a chip cross-section...
|
WO/2008/073396A1 |
The present invention provides for a composition comprising a silane having the formula: (R1)(R2)(R3)Si -R4 - Si(R5)(R6)(R7) wherein R1, R2, R3, R5, and R6 are each independently selected from the group consisting of 1 to 6 monovalent hy...
|
WO/2008/073397A1 |
The present invention provides for a composition comprising a silane having the formula: (R1)(R2)(R3)Si -R4 - Si(R5)(R6)(R7) wherein R1, R2, R3, R5, and R6 are each independently selected from the group consisting of 1 to 6 monovalent hy...
|
WO/2008/063127A1 |
The present invention concerns a method to retrieve heat from black liquor, where the black liquor is withdrawn from a digester (10) in association with the production of cellulose pulp. The black liquor at the withdrawal stage maintains...
|
WO/2008/057040A1 |
The invention concerns a method for the production of cellulose pulp in a continuous digester system in an energy-efficient manner. The method comprises an impregnation vessel in which to impregnate the chips, which chips are then fed to...
|
WO/2008/058003A2 |
This invention provides a composition and method for improving a mechanical pulping process by decreasing freeness and amount of shives, providing energy and chemical savings, and enhancing brightness and mechanical strength of a paper p...
|
WO/2008/043837A1 |
The present invention relates to a liquid composition which comprises at least one polymer and at least one ionic liquid, the cations of which are derived from polycyclic amidine bases, and a process for isolating cellulose from cellulos...
|
WO/2008/044860A1 |
There are provided a method for manufacturing a bamboo chip for a soluble pulp and a bamboo chip manufactured therefrom, the bamboo capable of improving their productivity and obtaining high-quality products, as well as manufacturing the...
|
WO/2008/028183A1 |
The present invention provides a method for producing an MDF board from pulp from a fibrous lignocellulose material using a treatment or pretreatment step which exposes the material to oxalic acid or oxalic acid derivatives (particularly...
|
WO/2008/025166A1 |
A process for producing ammonia and sulfuric acid from a stream comprising ammonium sulfate is provided. The process comprises the steps of heating the stream to produce ammonia and a decomposition product comprising one or more than one...
|
WO/2007/149836A2 |
In general, the present disclosure is directed to compositions and processes to increase pulp yield, reduce extractives, and reduce scaling in a chemical pulping process. In one particular embodiment, for instance, the present disclosure...
|
WO/2007/140837A2 |
The invention relates to a method for producing fibrous material with a lignin content of at least 15% for softwood, at least 12% for hardwood, or at least 10% for annual plants, relative to the oven-dry fiber mass in each case, consisti...
|
WO/2007/140839A2 |
The invention relates to a method for producing fibrous material consisting of the following steps: production of a chemical solution with less than 25% sulfite (calculated as NaSO3), relative to the oven-dry quantity of the lignocellulo...
|
WO/2007/140838A2 |
The invention relates to a lignocellulosic fibrous material made of wood with a breaking length of more than 8 km at 15 °SR and a lignin content of at least 15%, relative to the unbleached oven-dry fibrous material, for softwood, and wi...
|
WO/2007/137127A2 |
A method of pretreating comminuted fibrous material with sodium carbonate and then cooking the pretreated material in the presence of anthraquinone (AQ) is provided. The resulting pulp produced has a higher yield, enhanced strength, and ...
|
WO/2007/128024A1 |
The invention relates to a method for producing a type of pulp from a cellulose starting material by kraft pulping, comprising the step of cooking the starting material with a cooking liquor. The method according to the invention is char...
|
WO/2007/128027A1 |
The invention relates to a method for producing cellulose from a cellulose starting material. The method comprises a step during which the starting material is digested with a digesting liquor, and subsequent further processing steps, su...
|
WO/2007/129921A1 |
An integrated process for the production of ethanol from woody plant material is provided, the process comprising: contacting a continuous flow of the plant material with a counter-current continuous flow of an aqueous ethanol solution a...
|