Patents
Sitemap › D21 - Paper-making; Production of cellulose › D21C - Production of cellulose by removing non-cellulose substances from cellulose- containing materials; Regeneration of pulping liquors; Apparatus therefor › D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters
Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265)
12/2012
12/05/2012CN102807628A Method for preparing acidolysis starch-based fixer
12/05/2012CN102251427B Two-stage high-efficiency bleaching method for poplar chemical-mechanical pulp
12/04/2012CA2677972C Method for functionalising carbohydrates
11/2012
11/29/2012WO2012160255A1 Method and apparatus for manufacturing a hydroxycarboxylic acid product and use of bleaching filtrate
11/28/2012EP2527531A1 Ligno cellulosic materials and the products made therefrom
11/28/2012EP2526226A1 Process for production of oxidised cellulose pulp
11/28/2012CN102803605A Method for reducing deposits in the drying section in the manufacture of paper, paperboard, and cardboard
11/28/2012CN101443514B Process for producing bleached pulp
11/27/2012US8317975 Product and processes from an integrated forest biorefinery
11/22/2012WO2012156882A1 Process for treating cellulose and cellulose treated according to the process
11/22/2012WO2012156880A1 Process for treating microfibrillated cellulose and microfibrillated cellulose treated according to the process
11/22/2012CA2834460A1 Process for treating microfibrillated cellulose and microfibrillated cellulose treated according to the process
11/21/2012CN102791923A Process for producing differentiated cellulose fibers comprising an enzymatic treatment in association with an acid step
11/21/2012CN102181956B Short linen viscose fiber and preparation method thereof
11/21/2012CN102016167B A distribution device for feeding of cellulose pulp
11/15/2012CA2835302A1 Process for treating cellulose and cellulose treated according to the process
11/14/2012CN102782212A Dewatering press
11/14/2012CN102776796A Technology for catalyzing and bleaching paper pulp with immobilized Schiff alkali metals
11/14/2012CN102776795A Application of organic phosphonic acid in pulp bleaching process
11/14/2012CN101589191B Bleaching of substrates
11/13/2012US8308901 Enhanced fiber additive; and use
11/08/2012US20120282239 Novel mannanase variants
11/08/2012US20120279669 Method of treating liquid flows at a chemical pulp mill
11/07/2012CN202519516U Sizing agent distributing device for double-roller sizing agent extruder
11/07/2012CN202519515U High speed pulp washer
11/07/2012CN202519514U High-speed pulp washer with pulp collector
11/07/2012CN102767106A Method for treating fiber material and novel composition
11/07/2012CN101896664B Apparatus for washing and dewatering pulp
11/06/2012US8303772 Method for preparing a grass-type unbleached paper product
11/06/2012US8303771 Apparatus and method for treatment of pulp
11/06/2012US8303770 Method and arrangement for the treatment of cellulose pulp
11/06/2012US8303769 Arrangement, system and method for treatment of cellulose pulp
11/06/2012CA2604782C An apparatus for distributing a pulp flow
11/01/2012US20120273145 Organopolysilicone polyether drainage aid
10/2012
10/31/2012EP2516732A1 Method and arrangement for improving a washing step after completed cooking in a continuous digester
10/31/2012CN102002877B Paper pulp concentrating machine
10/31/2012CN101451319B Low brightness pulp prepared by ammonium sulfite steam cooking straw raw material, preparation method thereof and use thereof
10/30/2012CA2609462C Arrangement for the treatment of cellulose pulp in a washing apparatus arranged with displaced peripheral valve seals
10/24/2012EP2513372A1 Pulping process
10/24/2012CN102753752A Paper filler composition
10/24/2012CN102747638A Production technology for high-wet modulus cotton pulp
10/24/2012CN101824765B Production process of low-ration high-strength waterproof plaster board mask paper
10/23/2012CA2554056C A process for the treatment of fibre material and new composition
10/23/2012CA2553662C Method for reducing the extractives content of high-yield pulps and method for producing bleached high-yield pulps
10/23/2012CA2510599C Amino-functionalized pulp fibers
10/23/2012CA2445916C Use of lipolytic enzymes for stickies control
10/23/2012CA2431972C Thermostable lipolytic enzyme variant
10/23/2012CA2331199C Isolated mannanases for use in treating cellulosic or synthetic fibers
10/17/2012CN102733251A Papermaking method by oxidizing banana stemfiber
10/17/2012CN102733229A Method for reducing masson pine chemical-mechanical pulp resin content
10/17/2012CN102733228A High-efficiency pulp washing squeezer
10/17/2012CN101896667B Apparatus for washing and dewatering pulp
10/17/2012CN101748630B Acid-free pre-hydrolysis enzymolysis-free method for preparing bamboo pulp of Dendrocalamus giganteus Munro series
10/16/2012US8287691 Enhanced fiber additive; and use
10/11/2012WO2012138704A2 Method of monitoring macrostickies in a recycling and paper or tissue making process involving recycled pulp
10/11/2012US20120255692 Bleach compositions and related methods
10/11/2012CA2831874A1 Method of monitoring macrostickies in a recycling and paper or tissue making process involving recycled pulp
10/10/2012EP2508263A1 Fibrous materials and composites
10/10/2012EP2507251A2 Bleach catalyst compounds, method for the production thereof and use thereof
10/10/2012CN102191708B Method for carrying out elemental chlorine free (ECF) multistage bleaching on masson pine kraft pulp by using glyoxal
10/10/2012CN101896666B An apparatus for washing and dewatering pulp, a system for controlling such an apparatus, and a method for processing pulp in such an apparatus
10/10/2012CN101896665B Apparatus for washing and dewatering pulp
10/04/2012WO2012134373A1 A sealing arrangement for sealing between a first drum and an end casing member
10/04/2012WO2012131665A1 Lignocellulose processing
10/04/2012WO2012129699A1 Cell wall deconstruction enzymes of thermomyces lanuginosus and uses thereof
10/04/2012WO2012129697A1 Novel cell wall deconstruction enzymes of talaromyces thermophilus and uses thereof
10/04/2012CA2831861A1 A sealing arrangement for sealing between a first drum and an end casing member
10/03/2012EP2504487A1 Method for manufacturing nanofibrillated cellulose pulp and use of the pulp in paper manufacturing or in nanofibrillated cellulose composites
10/03/2012CN202466282U Filter screen of thickener
10/03/2012CN202466281U Paper pulp thickener
10/03/2012CN202466280U Disk thickener
10/03/2012CN202466279U Concentration equipment
10/03/2012CN202466278U Thickener
10/03/2012CN202466277U Thickener
10/03/2012CN202466276U Large-span concentration machine
10/03/2012CN202466275U Tunnel evaporating and condensing device
10/03/2012CN202466274U Vacuum wash hollander
10/03/2012CN102713055A A method of drying a cellulose pulp web and an arrangement for drying such a web
10/03/2012CN102713054A Method and arrangement for improving a washing step after completed cooking in continuous digester
10/03/2012CN102704317A Post-processing technology for wood-bamboo composite pulp
10/03/2012CN102704306A Total chlorine-free bleaching method for pinus massoniana explosion pulp
10/03/2012CN102704305A Process for producing bleached pulp and paper
10/03/2012CN102704304A Automatically maintained and automatically controlled long-term safe operation device for concentrating paper pulp-washing black liquor
10/03/2012CN102704303A Method for bleaching wheat straw explosion pulp
10/03/2012CN102704302A Bleaching method of sinocalamus affinis blasting pulp
10/03/2012CN102704300A Method for reproducing paper pulp used for filter stick core paper by utilizing filter stick waste
10/03/2012CN102277762B Process for producing dissolving pulp by utilizing bleaching wood pulp board
10/03/2012CN102220720B Auxiliary vacuum unit of vacuum pulp washer and method for increasing vacuum degree
10/03/2012CN101680174B Method for treating liquid flows at a chemical pulp mill
10/02/2012US8277608 Method for treating pulp in connection with the bleaching of chemical pulp
10/02/2012US8277606 Concurrently heat- treating and convolving cellulosic fiber pulp at elevated temperature and pressure at high consitency, so as to preclude substantial fibrillation and attendant paper strength and fiber bonding development
09/2012
09/27/2012WO2012128711A1 A device for adjusting a press nip
09/27/2012WO2012127111A1 Method and arrangement for treating filtrate after oxygen delignification of chemical pulp cooked to a high kappa number
09/27/2012US20120241112 Method and arrangement for improving a washing step after completed cooking in a continuous digester
09/27/2012CA2830312A1 Method and arrangement for treating filtrate after oxygen delignification of chemical pulp cooked to a high kappa number
09/27/2012CA2830310A1 A device for adjusting a press nip
09/26/2012EP2503054A1 Method for preparing a fibrous suspension
09/26/2012EP2501753A1 Strong nanopaper
09/26/2012CN102691228A Post-processing process of cotton-wood composite pulp
09/26/2012CN102691223A Pulp pipeline heater
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