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WO/2013/110386A1 |
The invention relates to a method for removing solids from an aqueous fibrous suspension (1) by means of gas bubbles in a flotation unit comprising a plurality of flotation cells (2), wherein a fibrous suspension gas mixture (3) is suppl...
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WO/2013/106170A2 |
Methods to control organic contaminants in fibers are described. One method involves contacting the fibers with a) diatomaceous earth and b) detackifier, or an ester hydrolyzing enzyme, or both, for a sufficient time and in a sufficient ...
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WO/2013/106669A1 |
A carpet recycling method is disclosed. In a toroidal flow pulper, carpet is disintegrated in a quantity of liquid to form a slurry of fibrous carpet materials and carpet ash. At least a portion of the fibrous carpet materials are separa...
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WO/2013/095203A1 |
In the pulp and paper industry, there is a need to follow up process variables spatially directly in the refining zone of refiners, in order to control the process to reduce the variations in energy consumption and pulp quality. This is ...
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WO/2013/089615A1 |
A mixing unit (10) for use in a mixing apparatus (100) for mixing chemicals in liquid or gaseous state into a fiber suspension, which apparatus comprises a housing (101) defining a mixing chamber (102), a first inlet (103) for feeding a ...
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WO/2013/072559A1 |
In a method for producing nanofibril cellulose, cellulose based fibre material, in which internal bonds in the cellulose fibre have been weakened by chemical modification, are supplied, for separating fibrils, through several counter-rot...
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WO/2013/074764A1 |
A screening apparatus for recycled paper stock includes a screen basket and at least one microstickies colletor. The screen basket includes a fine perforated screen with a circumference. The at least one microstickies collector is positi...
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WO/2013/074202A1 |
A method for bleaching pulp includes introducing a bleaching liquor in at least one refiner to contact lignocellulosic particulates processed therein in the formation of pulp, wherein the bleaching liquor includes at least one peroxide, ...
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WO/2013/061266A1 |
The present invention relates to a process for producing a dispersion comprising microfibrillated cellulose and nanoparticles wherein the process comprises the steps; providing a slurry comprising pre-treated cellulose fibers, adding nan...
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WO/2013/058975A1 |
Methods and apparatus for continuously detrashing paper stock components. The method pertains to detrashing paper stock components from a pulper wherein contaminants from the pulper are fed to a detrashing apparatus with the components s...
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WO/2013/057402A1 |
The facility comprises a defibration sheath ( 10) having an input (20) for wood chips (16) and an output (22) for the fibres (24), and containing two parallel screws (12, 14) capable of being driven in rotation in such a way as to engage...
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WO/2013/053572A1 |
The invention relates to a device for defibrating wastepaper and pulps in a pulper having a rotor, wherein the rotor is modularly constructed of individual parts and can be variably configured. According to the invention, a modularly con...
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WO/2013/045325A1 |
The invention relates to an operating method for a stock preparation zone in a paper, tissue or cardboard machine for producing a fibrous web, comprising at least one vat for preparing and storing a fibrous stock suspension and a measuri...
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WO/2013/045820A1 |
According to the method, wood chips (16) are introduced into a sheath (10) containing two parallel, meshed screws (12, 14), their threads (12B, 14B) having, in succession, in the downstream direction (S), at least one upstream series and...
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WO/2013/044347A1 |
Disclosed is a method of producing various paper types from a nonwood fiber source such as a mixture of flax and wheat. The fiber source is chopped to an average length between 1 and 100 mm, wet-processed, dewatered, and heated in the pr...
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WO/2013/045782A1 |
The invention relates to a method for producing mechanical paper pulp comprising at least: a step in which unprocessed wood is impregnated, whereby unprocessed wood is exposed to an impregnating composition comprising at least a laccase ...
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WO/2013/041298A1 |
The present invention provides a device for heating a feedstock comprising an elongate chamber (140) having at least a portion thereof that is cylindrical. The chamber comprises: (a) an inlet for receiving the feedstock and an outlet for...
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WO/2013/034811A1 |
The invention relates to a method for manufacturing a material component from a starting material of plant origin so that the material component is formed by grinding from the starting material. According to the invention, the starting m...
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WO/2013/034727A1 |
A method for treating a plastic and/or paper waste material comprising the following steps: (a) Collecting a plastic and/or paper waste material, preferably paper, highly preferably a release coated cellulose or polymeric sheet material,...
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WO/2013/013655A2 |
A pulper having a shaft, on which there is arranged a coil, is further developed in that it has a shaft having an opposed coil. Preferably, the two coils are arranged on the same shaft. This leads to extreme friction in the middle of the...
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WO/2013/010230A1 |
Cellulosic fiber disruptive device from paper scrap by abrasion with soluble contaminants extraction during process, is a practical and innovative equipment for use in the chemicals industries of cellulosic fibers recovery, providing adv...
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WO/2013/006107A1 |
A feed screw (18) for feeding lignocellulose material to a rotary disc grinder (10) comprising two opposed grinding discs (11, 12), the feed screw (18) comprising at least one peripheral thread (23) for feeding lignocellulose material in...
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WO/2012/155240A1 |
This application relates to a two-stage enzymatic hydrolysis process for treating lignocellulosic materials and producing a sugar rich process stream, wherein enzyme inhibiting compounds are removed after the first stage of the enzymatic...
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WO/2012/128901A1 |
A prehydrolysis of wood chips or other lignocellulosic material in a vessel having a gaseous portion and a liquid portion. The vessel includes at least one stress relieving piece that inhibits overcompression of the lignocellulosic mater...
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WO/2012/126099A1 |
The present disclosure relates to a solvent extraction of the lignaceous residue of a biorefming process. The present disclosure relates, at least in part, to compositions comprising lignocellulosic biomass and an organic solvent wherein...
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WO/2012/123736A1 |
The present invention relates to a method for the production of cellulose from a waste material, the method comprising the steps of: providing a waste material comprising organic material; homogenising the waste material; passing steam t...
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WO/2012/125058A1 |
The process relates to technology for manufacturing cellulose and can be used in particular in the cellulose and paper industry for modifying finished cellulose raw material. The process for modifying cellulose comprises grinding a fibro...
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WO/2012/125057A1 |
The process relates to technology for manufacturing cellulose and can be used in particular in the cellulose and paper industry both for producing cellulose raw material and for modifying the finished cellulose raw material. The process ...
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WO/2012/116928A1 |
The invention relates to a rotor (1) for a pulper in a fibre processing system, the rotor being arranged in a container (2) for the purpose of circulating a fibre suspension (3) present in said container (2), and the rotor brushing over ...
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WO/2012/114045A1 |
The invention relates to a method for preparing paper pulp from seaweed powder, said seaweed powder being prepared by drying seaweed and/or floating cellulose resulting from the treatment of seaweed at a temperature of less than 150ºC u...
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WO/2012/115526A1 |
A thermo-mechanical or refiner-mechanical method of producing pulp from Pinus Radiata wood chips including the steps of: introducing the Pinus Radiata wood chips into a refiner system including one or more refiners where at least one of ...
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WO/2012/109410A1 |
A nonwoven acoustic sheet material including Asian cardboard and a scrim layer and method of construction thereof is provided. The method of construction includes providing Asian cardboard and comminuting the cardboard into pieces of a p...
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WO/2012/099036A1 |
Provided are: a porous electrode base material that has high thickness precision, gas permeability, and electroconductivity, sufficient handling performance, low manufacturing cost, and a high carbonization ratio during carbonization; a ...
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WO/2012/097446A1 |
A novel method is disclosed to produce on a commercial scale, high aspect ratio cellulose nanofilaments (CNF) from natural lignocellulosic fibers. The method consists of a multi-pass high consistency refining (HCR) of chemical or mechani...
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WO/2012/095928A1 |
In order to provide a paper recycling system which is capable of reproducing paper that has improved degree of whiteness and that can be used in wide range of applications other than newsprint paper, a paper recycling system of the prese...
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WO/2012/045298A9 |
The invention relates to a method for processing biomass, such as in particular green waste containing wood, and a high density pulper having a spiral, wherein the green waste is treated in a continuously operated, bladed pulper and then...
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WO/2012/081444A1 |
A papermaking unit (13) comprises: a papermaking wire mesh unit for forming a wet paper web (12) from pulp suspension (8); and a headbox unit for supplying the pulp suspension to the papermaking wire mesh unit. A control unit (700) compr...
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WO/2012/081991A1 |
A method for treating a paper to provide at least a part of it with anisotropic electric conductivity, by i) applying to the paper a dispersion comprising a non-aqueous, liquid dispersing agent and conductive particles, ii) applying an e...
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WO/2012/076933A1 |
The present invention relates to a method for modifying the properties of cellulose pulps. Said method consists of modifying the properties of cellulose pulps by means of cold/hot processing with the application of high hydrostatic press...
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WO/2012/072874A1 |
The invention relates to a method for producing nanocellulose. In the method according to the invention, cellulose is refined by means of a first refiner (2a), the refined cellulose is separated by means of a first separator (3a) in such...
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WO/2012/062563A1 |
The invention relates to a method for controlling a rope winch (3) which conveys a rope (1) which is formed from contaminants out of a pulper (2) for defibring fibrous materials which are loaded with contaminants, and is formed by at lea...
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WO/2012/058710A1 |
A method of feeding paper through a paper feeder by conveying paper along a path and regulating the through-flow of paper from the path to dispense the paper from the feeder at a controlled flow rate while continuously moving the paper t...
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WO/2012/052617A1 |
The invention is based on performing, in an alternative step, biological or biochemical processing on a wood fibre fraction generated in connection with pulp making and unsuitable for paper making, whereby one or more biocatalysts having...
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WO/2012/047700A1 |
Methods of producing mechanical pulps from lignocellulosic material including partial defibration of lignocellulosic material in a chip press followed by liquid impregnation, preheating the lignocellulosic material for 20 seconds or less...
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WO/2012/042498A1 |
This specification discloses an improved method for conducting the removal of C5 xylan based sugars from biomass. The improved method involves a series of soakings and washings of the biomass as opposed to conducting one soaking and wash...
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WO/2012/042497A1 |
The process is for pretreating a lignocellulosic biomass feedstock and comprises: soaking a lignocellulosic biomass feedstock wherein the soaked biomass is present as a mixture with a free liquid and wherein the free liquid comprises at ...
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WO/2012/037250A2 |
Disclosed are methods and systems for treating cellulose to make it more accessible for enzymatic or chemical modification. The invention includes treating cellulose with an alkali in an alcohol/water co-solvent system. The treatment dec...
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WO/2012/030346A1 |
The present disclosure relates to a comminution apparatus including a rotational reducing unit that is rotatable about an axis of rotation. The rotational reducing unit includes a plurality of material reducing components that are mounte...
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WO/2012/025538A1 |
The present disclosure relates to a process for the treatment of a paper pulp, wherein, in a first step, a composition of particles of lamellar silicate is added to said paper pulp, and in a second step, said paper pulp is passed through...
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WO/2012/020938A2 |
The present invention relates to a method for simultaneously preparing porous silica and fiber. More particularly, the present invention relates to a method for simultaneously preparing natural silica concentrated in chaff shells and cha...
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