Matches 1 - 46 out of 46

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US20110056635 FIBERBOARDS, USES AND METHODS OF PREPARATION THEREOF  
There is provided a fiberboard, such as a MDF fiberboard or a HDF fiberboard, comprising wood fibers, a binder, and a sludge such as a pulp and a paper sludge. The sludge can be, for example,...
US20050115690 Methods for producing recycled pulp from waste paper  
The invention provides methods and apparatus for using waste paper to produce recycled pulp that can be used by the paper industry. The recycled pulp produced by the methods and apparatus of the...
US20070158041 Method and arrangement for treating pulp  
The present invention relates to a method and arrangement for treating pulp. The method and arrangement according to the invention are suitable for use in production of chemical pulp in...
US20050274468 Central screen  
Methods for continuously producing pulp from lignocellulose-containing material in a digester are disclosed in which the porous lignocellulose-containing material is fed from the top to the bottom...
US20110253326 Separation of Lignin From Lignocellulosic Materials  
A method is described for separating lignin from liquid solutions resulting from the pretreatment of lignocellulosic materials such as switchgrass with ammonium hydroxide. The method involves a...
US20050000666 Use of hemicellulase composition in mechanical pulp production  
Methods for reducing energy required for a pulp refining processes by treating a mechanical pulp with a hemicellulase composition are presented. The enzymatic treatment can be carried out at a...
US20070045157 Recovery of pin chips from a chip washing reject stream  
A recovery process and apparatus employing a pressure water washer to process wood chip wash water, to separate pin chips from sand and dirt contained in the wash water. Wash water from a chip...
US20090032207 Process for Producing Mechanical Pulp Suitable for Paper or Cardboard Making  
Method for the production of mechanical or chemi-mechanical pulp as raw material for paper or cardboard. According to this method, the pulp is fibrillated and the fibrillated pulp is bleached in...
US20120000619 ARRANGEMENT, SYSTEM AND METHOD FOR TREATMENT OF CELLULOSE PULP  
Apparatus for screening cellulose pulp streams is disclosed including first and second screens contained in a housing, and a primary inlet for directing the cellulose pulp stream into the housing,...
US20080169071 Screen Device For a Digester For Producing Pulp  
A central screen element being located substantially parallel with the vertical axis of a pulp digester is provided. In the vertical direction, the screen element comprises at least one zone...
US20050016700 Isolation of sclereids  
A sclereid concentrator is an apparatus designed to concentrate sclereids found in pulp. The sclereid concentrator is based around a mini-hydrocyclone. When a slush pulp sample is passed through...
US20110120663 METHOD AND SYSTEM FOR THIN CHIP DIGESTER COOKING  
A method to cook thin chips in a continuous digester vessel including: introducing thin chips having a thickness of no more than 6 mm, into a chip bin; adding white (cooking) liquor to the chip...
US20050155729 Method for ozone treatment of used paper  
The invention concerns a novel method for ozone treatment of used paper which consists in transforming used paper into pulp in an aqueous medium, screening then de-inking said paper by liquid...
US20070000628 Method for removal of metals from a bleach plant filtrate stream  
A method is disclosed for removal of non process elements from a Kraft bleach plant producing lyocell pulp. In the method the bleach plant filtrate is passed through at least one centrifugal...
US20050224199 Bar screen device  
The invention relates to a bar screen device (1, 1′, 1″), especially for treating fibrous suspensions in the paper industry. Said device comprises a plurality of bars (2, 2′, 2″, 2″) which are...
US20050284594 Screen assembly for a pulp digester  
A pulp digester includes a vessel having an inlet, an outlet and a wall extending between the inlet and the outlet, the wall of the vessel having a curved interior surface. The digester includes a...
US20050258079 Pressurized screen for screening a fibrous suspension and use thereof  
Pressurized screen and process for screening a fibrous suspension, in which the pressurized screen includes a housing and at least one wire arranged in the housing. The at least one wire has a...
US20080029232 Process and Device to Manufacture Cellulose Pulp  
Process and device to manufacture and dewater cellulose pulps in which defibered cellulose is screened to remove shives, fractionated in to at least three fractions (10, 3, 12), which fractions...
US20090306364 USE OF SPECIAL SCREENS IN THE PREPARATION OF CELLULOSE POWDER  
The present invention refers to the use of screens comprising at least two layers of different mesh or pore size in a cellulose powder preparation method as well as to said method, wherein...
US20090308550 Pin chip recovery  
A method is described for separating pin chips from a wood furnish of wood chips, pin chips and fines mixture. In the method, the wood chips are separated from the pin chip and fines mixture and...
US20050126731 Economical and environmentally sustainable method of recycling wastepaper  
A method of recycling wastepaper that is environmentally sustainable. A wastepaper stream is fractionated into a long fiber stream and a sludge stream. The sludge stream is combusted at vapor...
US20120193049 METHOD FOR PROCESSING LIGNOCELLULOSE MATERIAL  
A method for processing a lignocellulose material, comprises the following steps: (1) crushing and sieving the lignocellulose material, and collecting granules with a particle size of between 0.08...
US20090188635 METHOD AND APPARATUS FOR TREATING PULP  
A method of dividing a suspension, especially a fiber suspension into an accept fraction and a fraction containing impurity particles in a centrifugal cleaning plant having at least two stages....
US20080196847 Pre-extraction and solvent pulping of lignocellulosic material  
A process of treating a lignocellulosic material includes a pre-extraction step in which hemicellulose is extracted from the lignocellulosic material. Then, in a solvent pulping step, the...
US20080308239 FIBER BLEND HAVING HIGH YIELD AND ENHANCED PULP PERFORMANCE AND METHOD FOR MAKING SAME  
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...
US20060144540 Method of using a high consistency slurry containing high levels of crosslinked cellulosic fibers  
A process of using a high consistency slurry containing high levels of crosslinked cellulosic fibers is described. In the process the fibers in the high consistency slurry are dispersed in a...
US20060162879 Compounding of fibrillated fiber  
A process for the preparation of natural fibers for use in forming reinforced polymer composites. The process comprises fiberizing or fibrillating the natural fibers by introducing them to a...
US20100269991 DEFLAKER PLATE AND METHODS RELATING THERETO  
A deflaker plate for use in a deflaker for reducing fibrous flakes in a slurry of fibers. The deflaker plate may include at least one annular ring consisting of multiple teeth, in which at least...
US20150107789 DISSOLVING PULP AND A METHOD FOR PRODUCTION THEREOF  
A method of preparing dissolving pulp. The method includes physically separating a kraft pulp or a kraft hydrolysis pulp into first and second fractions, the first fraction having a relatively low...
US20050279473 Fibers for spunlaced products  
Fractionated cellulosic fibers having a length weighted average fiber length of at least 2.4 mm and less than 2% by weight of fines. In another embodiment the fractionated cellulosic fibers have a...
US20080121358 Method And System For Treating A Fibrous Suspension  
Methods for treating a fibrous suspension are disclosed, including cleaning the fibrous suspension in a screening room with a plurality of cleaning stages and including a final cleaning stage, and...
US20080241536 Method for processing cellulose in ionic liquids and fibers therefrom  
The present application is directed to a process of dissolving cellulose in an ionic liquid, regenerating the fibers and forming a nonwoven web. In particular it is directed to fibers produced...
US20070215526 Screen device  
A screen device includes a screen dividing a tank into a first chamber and a second chamber for sorting a foreign material in a papermaking material, a first papermaking material supply passage...
US20100196981 METHODS AND SYSTEMS FOR FEEDSTOCK PRODUCTION FROM SEWAGE AND PRODUCT MANUFACTURING THEREFROM  
A cellulosic feedstock composition including an oil content of up to 15% of the composition, a cellulose content of 40-99% of the composition, a hemicellulose content of 2-20% of the composition,...
US20150211184 FIBER BLEND HAVING HIGH YIELD AND ENHANCED PULP PERFORMANCE AND METHOD FOR MAKING SAME  
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...
US20050211401 Process for the production of cellulose fiber pulp  
The invention provides a process for producing mechanical pulp from vegetative matter. The process comprises using high pressure fluid jets to break apart the vegetative matter into small...
US20100276093 PROCESS FOR FRACTIONATING SUGARCANE BAGASSE INTO HIGH A-CELLULOSE PULP, XYLAN AND LIGNIN  
Sugarcane bagasse consists of mainly three polymeric components, namely cellulose (40-45%), hemicellulose (xylan) (28-30%), and lignin (19-21%). A process is herein disclosed for fractionating...
US20150211188 HIGH YIELD AND ENHANCED PERFORMANCE FIBER  
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...
US20110155335 USE OF POLYSULFIDE IN MODIFIED COOKING  
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...
US20090272504 Method and apparatus for the integrated cleaning of a paper-pulp processing plant  
A method for the integrated cleaning of a paper-pulp processing plant including one or more high density cleaners comprising the steps of supplying the rejected flow (10) from one of the high...
US20100175840 HIGH YIELD AND ENHANCED PERFORMANCE FIBER  
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...
US20130306256 High Yield and Enhanced Performance Fiber  
A method for wood pulping including chemically pulping wood chips to a kappa number sufficient to generate a first amount of pulp including a first accepts component and 6 to 50 percent by weight...
US20100252214 Method and a Device for the Dewatering of a Fibre Suspension Supplied by a Nozzle Assembly  
A vertically elongate and oriented container (1) of wire cloth material contains a vertically oriented nozzle assembly (2), which sprays a fiber suspension against the inner wall of the container....
US20160333529 HIGH YIELD AND ENHANCED PERFORMANCE FIBER  
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...
US20160145797 CONTINUOUS DIGESTER AND FEEDING SYSTEM  
One embodiment provides an apparatus for cooking lignocellulosic material, comprising a pressurizable, inclined top separator including a sluicing liquor inlet for receiving a sluicing mixture...
US20160138218 PROCESS AND APPARATUS FOR BIOMASS CLEANING IN LIGNOCELLULOSIC BIOREFINERIES  
A wet process for cleaning biomass is disclosed, comprising: introducing biomass feedstock to a vibrating separator, to generate an overflow stream and an underflow stream, wherein the overflow...
Matches 1 - 46 out of 46