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 1 - Pretreatment of the finely-divided materials before digesting
Patents for D21C 1 - Pretreatment of the finely-divided materials before digesting (1,872)
09/2010
09/16/2010CA2753944A1 Method and chemical composition to improve efficiency of mechanical pulp
09/15/2010CN101831845A Method for manufacturing thin wrapping paper by deinked pulp
09/09/2010US20100224337 Refiner steam separation system for reduction of dryer emissions
09/08/2010CN101824763A System for cooking purified cottons
09/07/2010US7790430 Cellulase resistant to surfactants
08/2010
08/26/2010WO2010095982A1 Arrangement and method for the continuous steam pre-treatment of chips during the production of cellulose pulp
08/25/2010CN101503865B Method for preparing mlcrocrystalline cellulose by corps straw
08/18/2010CN201553942U Wood chip washing machine
08/18/2010CN101806005A Paper pulp making method capable of reducing large amount of waste liquid and lowering consumption of materials
08/10/2010US7771983 improved ability to enzymatically degrade lignocellulosic feedstocks; detergent
08/03/2010CA2446975C A method for isolating phenolic substances or juvabiones from wood comprising knotwood
07/2010
07/28/2010CN101787661A Textbook paper for elementary and secondary school students and preparation method thereof
07/28/2010CN101787660A Writing paper and preparation method thereof
07/28/2010CN101787659A News printing paper and preparation method thereof
07/22/2010WO2010081227A1 Removal of inhibitory compounds during pre-treatment of lignocellulosic biomass
07/22/2010US20100181034 Removal of inhibitory compounds during pre-treatment of lignocellulosic biomass
07/21/2010CN101148833B Paper-making-stage reclaiming wood pulp plate denaturalization producing technique
07/15/2010WO2010080462A2 Organic solvent pretreatment of biomass to enhance enzymatic saccharification
07/15/2010CA2744466A1 Organic solvent pretreatment of biomass to enhance enzymatic saccharification
07/01/2010WO2010075405A1 Modification of biomass for efficient conversion to fuels
07/01/2010CA2744747A1 Modification of biomass for efficient conversion to fuels
06/2010
06/24/2010WO2010069151A1 Process for extracting cellulose
06/23/2010CN101748630A Acid-free pre-hydrolysis enzymolysis-free method for preparing bamboo pulp of Dendrocalamus giganteus Munro series
06/23/2010CN101148834B Paper-making-stage broad-leaved wood pulp plate denaturalization producing technique
06/23/2010CN101148832B Paper-making-stage high viscosity wood pulp plate denaturalization producing technique
06/17/2010WO2010066026A1 Increasing alkaline pulping yield for softwood with metal ions
06/17/2010US20100147472 Extraction of hemp fibers
06/17/2010CA2745466A1 Increasing alkaline pulping yield for softwood with metal ions
06/16/2010CN101736646A Preparation method of reed or straw cellulose pulp
06/16/2010CN101736628A Explosion pulping method for bamboo or cotton stalks or wood or various twigs
06/16/2010CN101736627A Energy-saving pulping compound and pulping process thereof
06/16/2010CN101736626A Paper-making pulping method
06/09/2010CN101721834A Treatment method of waste gas generated by prehydrolysis of bamboo dissolving pulp
06/09/2010CN101148836B Paper-making-stage bamboo wood pulp plate denaturalization producing technique
06/02/2010CN101718048A Pretreatment process for producing bleaching thermo mechanical pulp by using mixed broad-leaved wood material
05/2010
05/26/2010CN201485749U Wet process feed preparation equipment for grass fiber raw materials and roller type grass washing machine thereof
05/19/2010CN101158125B Paper-making grade softwood pulp plate modifying production technique
05/19/2010CN101148837B Paper-making-stage primary color wood pulp plate denaturalization producing technique
05/19/2010CN101148835B Paper-making-stage wood pulp plate denaturalization producing technique
05/14/2010WO2010053464A1 Method for producing a fibrous semifinished product from cellulose-containing materials and line for implementing same
05/14/2010WO2009134764A3 Paper products and methods and systems for manufacturing such products
05/12/2010CN1865583B Pulping process for mixed Devil's Rush herb and reed
05/11/2010US7713382 Method and apparatus for processing wood chips
05/05/2010CN101701431A Method for producing bleached pulp for viscose fibers from bamboo
05/05/2010CN101701428A Method for preparing furfural by preprocessing grass fiber papermaking raw material and related comprehensive utilization method thereof
04/2010
04/29/2010WO2010046532A1 Process of producing xylose and dissolving pulp
04/29/2010CA2740708A1 Process of producing xylose and dissolving pulp
04/21/2010EP2177280A2 Method and device for discontinuous hydrolysis of organic substrates
04/14/2010CN101694075A Low energy consumption clean paper pulp extracting method and papermaking process thereof
04/13/2010US7695591 Arrangement and Method for Treatment of Cellulose Pulp Involving Means for Seal Adjustment
03/2010
03/24/2010CN100595375C Chemimechanical desilication of nonwood plant materials
03/17/2010CN101675190A Method for production of pulp
03/17/2010CN101671974A Sunflower stalk pulping technology
02/2010
02/18/2010DE102008037999A1 Verfahren zum Herstellen einer Kalanderwalze und Kalanderwalze A method of manufacturing a calender roll and the calender roll
02/17/2010CN101649567A Grass fiber pulping process
02/10/2010EP2151521A1 Method for production of pulp
02/09/2010US7658818 Method for converting a digester for use as a gas phase and hydraulic phase continuous digester
01/2010
01/27/2010EP2148000A2 Method for obtaining cellulose
12/2009
12/31/2009US20090321025 Pulp reactivity enhancement
12/17/2009US20090312536 Process For Producing A Pulp
12/15/2009CA2356444C Process for oxygen pulping of lignocellulosic material and recovery of pulping chemicals
12/09/2009CN101597575A Composite strain microbial dry powder for bio-pulping and environment-friendly energy-saving type composite strain bio-pulping process
12/09/2009CN100567631C Disc type heat dispersing method and its device for paper-making process and use
11/2009
11/26/2009WO2009140808A1 A process and system for pulping which are environmental protective, energy saving, circulating and green
11/25/2009CN101586314A Mechanical method for making pulp by extruding sunflower stems
11/19/2009CA2855044A1 Processing biomass
11/12/2009WO2009136000A1 Prehydrolysis sulfate cooking process
11/12/2009US20090281511 Fiber Accumulating Apparatus for Absorbent Body, Fiber Accumulating Drum, and Method for Manufacturing Absorbent Body Using the Same, and Absorbent Article Having Absorbent Body Manufactured by the Method
11/10/2009US7615134 Method and arrangement of impregnating chips
11/10/2009CA2390742C Removal of water-soluble compounds from wood chips prior to cooking
11/05/2009WO2009134764A2 Paper products and methods and systems for manufacturing such products
11/05/2009CA2820962A1 Paper products and methods and systems for manufacturing such products
11/05/2009CA2723175A1 Paper products and methods and systems for manufacturing such products
10/2009
10/28/2009CN101565907A Bagasse alkaline pulping method by pre-extracting hemicellulose and product thereof
10/28/2009CN101565906A Method for producing bamboo dissolving pulp by pre-extracting hemicellulose and product thereof
10/22/2009WO2009117402A3 Methods of pretreating comminuted cellulosic material with carbonate-containing solutions
10/22/2009WO2009108773A3 System and method for preextraction of hemicellulose through using a continuous prehydrolysis and steam explosion pretreatment process
10/14/2009CN101555667A Biorefinery method of wood fiber material
09/2009
09/24/2009WO2009117402A2 Methods of pretreating comminuted cellulosic material with carbonate-containing solutions
09/16/2009CN101532261A Efficient composite enzyme method for separating and purifying cellulose from wood
09/12/2009CA2658212A1 Medium consistency refining method of pulp and system
09/09/2009CN101529015A Modified kraft fibers
09/03/2009WO2009108773A2 System and method for preextraction of hemicellulose through using a continuous prehydrolysis and steam explosion pretreatment process
09/03/2009WO2009105928A1 A process of joint production of fuel ethanol, electricity and paper pulp by classification conversion of pennisetum purpureum schum
09/03/2009US20090218055 Method for Recovering Hydrolysis Products
09/03/2009CA2715592A1 System and method for preextraction of hemicellulose through using a continuous prehydrolysis and steam explosion pretreatment process
09/02/2009EP2096124A1 Method for incorporating flour in paper
08/2009
08/26/2009CN101514530A Method for preparing bagasse dissolving pulp by improved prehydrolysis alkaline process and product thereof
08/26/2009CN101514529A Method for preparing bamboo dissolving pulp by improved prehydrolysis alkaline process and product thereof
08/19/2009CN100529251C Method for producing paper pulp utilizing herbal plant, crop stalk and ore powder
08/13/2009WO2009097878A1 Mixing arrangement and method
08/13/2009WO2009097877A1 Mixing and diluting arrangement and method
08/12/2009CN101503865A Method for preparing mlcrocrystalline cellulose by corps straw
08/05/2009CN101498109A Stock preparation method before paper pulp making from oil palm empty fruit bunch
08/04/2009US7569120 Storing/treating cellulose pulp of medium consistancy for papermaking by inserting a pipe in the conical bottom inlet which can be withdrawn when converting the tower back to the original up-flow; pushing up or pulling down the insertion pipe can adjust the stationary stagnation zone; antifouling agent
08/04/2009CA2440789C Method for producing pulp
08/01/2009CA2660990A1 Biomass hydrothermal decomposition apparatus, method thereof, and organic material production system using biomass material
08/01/2009CA2654306A1 Biomass hydrothermal decomposition apparatus and method
07/2009
07/30/2009WO2009094187A1 Thermal and acid tolerant beta-xylosidases, genes encoding, related organisms, and methods
07/29/2009EP2082092A2 Modified kraft fibers
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