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Matches 701 - 750 out of 1,036

Document Document Title
JP2008248450A
To achieve high digestion ratio or reduction of digesting chemical used by finding a most efficient utilization method of a digestion auxiliary in enlarged digestion method.In a method for digesting a lignocellulosic material in which en...  
JP2008223217A
To provide a system for producing chemical cellulose pulp from a slurry of comminuted cellulose fibrous material.A cellulose slurry treatment system comprises an upright continuous digester 11 having an inlet near the top and an outlet n...  
JP2008174892A
To provide a method for producing cellulose pulp in a continuous digestion system in an efficient manner.Cellulose chips are fed continuously with a transfer liquid in a transfer line 11 to a top separator 20 arranged at the top of a dig...  
JP2008150721A
To improve closed systematization of a process for the increase of the pulp yield, while reducing environmental problems and to prevent both potassium accumulation on a recovery boiler and scale trouble in the boiler in the process for p...  
JP2008121127A
To provide a method for producing pulp, by which processes can be simplified and treatments of a waste liquid can be reduced.This method for producing the pulp comprises steps of charging wood chips 1 in a chemical liquid 3 containing at...  
JP2008057077A
To provide a method for simply measuring the variation of a pulp yield in a short time.This method for measuring the variation of the pulp yield from the change of a ratio of the content of inorganic substances contained in a cooked blac...  
JP2008045262A
To provide a mechanical pulping process developing brightness and other pulp properties.A non-compression vessel, such as a digester, is employed for the chemical preconditioning of the chips followed by a fiberizing device to break the ...  
JP2008045223A
To provide an extremely economical method for producing pulp by which both the pulp and lignin can efficiently be obtained to reutilize a high-boiling organic solvent used and extremely low pressure is sufficiently used in a pulping step...  
JP2008013859A
To provide a method for bleaching a non-wood pulp so as to have a high whiteness while minimizing the increase of bleaching cost and also maintaining the viscosity of the pulp not using a chlorine-based chemical but using only a peroxide...  
JP2008005832A
To provide a method for treating plant material, capable of easily retrieving useful components such as ethanol, lignin and pulp from the plant material.The method comprises the following process: Plant material(phytobiomass) is heat-tre...  
JP3969598B2
To obtain an antimicrobial pulp which is inexpensive and easy to use by incorporating a specified antimicrobial agent into pulp obtd. from vegetation. This antimicrobial pulp comprises copper chlorophyll incorporated into pulp obtd. from...  
JP3964201B2
To provide a method for producing a woody fiber material, capable of opening fibers in a short time and capable of producing the fiber material of good quality. This method for producing the woody fiber material has a process for treatin...  
JP3965153B2
To provide pulp useful for producing lyocell products, to provide a method for producing the pulp, to provide lyocell products made from the pulp, to provide a method for producing the lyocell products, and especially, to provide a metho...  
JP3965154B2
To provide a method for economically producing lyocell products from a pulp containing hemicellulose usually removed. The method for producing lyocell products comprises making a dope from the pulp and forming lyocell products from the d...  
JP2007119934A
To provide an energy saving and environmental friendly method for separating lignin from woody biomass without using a necessary chemical, etc., of wastewater treatment.The pulverized woody biomass is dispersed in water and the resultant...  
JP2007002383A
To produce pulp from woody biomass in high production efficiency and in high fiber recovery.The pulp is produced by steaming (for example, treating with pressurized water at 130°C or higher) woody biomass in the presence of ammonia or a...  
JP3898160B2
To provide a unit including a cellulose pulp continuous digester and making the best use of a vapor phase digester with a gas-filled zone on the liquid level while having the advantages inherent in a full-liquid type digester. The unit w...  
JP3832373B2
To provide a method for homogeneously digesting a lignocellulose material by using a continuous digester. The method for digesting the lignocellulose material by using the continuous digester comprising an impregnation zone, a digestion ...  
JP3811833B2
To obtain a pulp obtained by effectively pulping straws under the atmosheric pressure, having strength characteristics equal to those of pulps prepared according to a conventional method and excellent in quality, by adding an aqueous sol...  
JP2006112004A
To provide a method for effectively utilizing a part other than oil and fat in a plant body of Elaeis guineensis Jacq.The method for effectively utilizing Elaeis guineensis Jacq. comprises digesting the plant body of Elaeis guineensis Ja...  
JP2006104631A
To provide a method for digesting lignocellulose material to give pulp of low kappa number in high yield.The method for digesting lignocellulose material to give pulp of low kappa number in high yield comprises treating the lignocellulos...  
JP2006097199A
To provide a method for producing kraft pulp, by which the pulp can be obtained in a high yield and in a high pulp strength (especially a tensile index), and to provide an apparatus for producing the same.In this method for producing the...  
JP3783987B2
To obtain an aqueous slurry of anthraquinones at a high concentration useful as a pulp digesting assistant. This pulp digesting assistant composition is an aqueous slurry of anthraquinones comprising a powder of the anthraquinones having...  
JP2006009235A
To provide an improved method for supplying cellulose chips to a continuous high pressure digestion system.The method and system for supplying the cellulose fiber material to a high pressure treating tank is characterized by comprising a...  
JP2005336667A
To provide a method for digesting lignocellulose material, capable of improving a digestion yield of the material, by using a continuous digester.This method for continuously digesting the lignocellulose material comprises using a two-ve...  
JP2005220510A
To provide a method for continuously cooking, increasing heat economy and obtaining high quality pulp.The method of continuous cooking of chemical pulp comprises a impregnation vessel 101 and a digester 102. Chips are impregnated in the ...  
JP2005185907A
To provide the method of practical treatment of lignocellulosic material by lignin decomposition bacteria in advance in an anaerobic condition for saving resources and energy in production of paper pulp, and a practical method for anaero...  
JP2005171397A
To provide a method for easily and inexpensively producing minute cellulose fiber using a technique different from a conventional one.The method for easily and inexpensively producing minute cellulose fiber comprises pulpifying barked st...  
JP3682935B2
To provide a method for improving the mechanical strength characteristics of chemical cellulose pulp (esp. kraft pulp). The mechanical strength characteristics of chemical cellulose pulp is improved by low-temperature dipping infiltratio...  
JP2005133219A
To prevent chip hanging from occurring in a two-vessel liquid-phase and vapor-phase continuous digester for producing kraft pulp.The two-vessel liquid-phase and vapor-phase continuous digester is equipped with a penetration vessel V1 of ...  
JP2005126871A
To provide bamboo pulp having high antibacterial properties and provide various kinds of antibacterial cellulose fiber from the bamboo pulp and provide a variety of clothes having high antibacterial properties.The bamboo pulp is produced...  
JP2005120534A
To provide a kraft digesting method for improving yield of pulp in which the yield of pulp can be improved without improving the present digesting facility and digesting method by controlling only size and thickness of chips supplied to ...  
JP3668792B2
To obtain an antifoaming agent for a kraft pulp producing process which has improved antifoaming characteristics even under the severe condition of high temperature, high alkali, and high shearing force and in which a pitch is generated ...  
JP2005089921A
To provide a method for producing pulp using a liquid phase continuous digester in which occurrence of tip hanging can be prevented as much as possible in the liquid phase continuous digester for producing kraft pulp.In a liquid phase co...  
JP2005002492A
To provide a method for reducing a digestion white liquor in a continuous digester, comprising using the tower-like vessel type continuous digester to produce pulp, which enables the prevention of chip hanging and the reduction in the am...  
JP2004353108A
To prevent occurrence of chip hanging (unsmooth drop of raw material chip) during pulp production by a column-like vessel type continuous digester.In the column-like vessel type continuous digester having constitution that in a vessel su...  
JP3623469B2
To provide a method for the continuous pressure control of a vertical- type boiler for chopped cellulosic fibrous materials, capable of maintaining the pressure inside the boiler at a desired level, and/or maintaining the liquid level in...  
JP2004339682A
To provide a top separator enabling easy mutual conversion of operating modes of a continuous digester between gas phase and hydraulic phase.The continuous digester for producing chemical cellulose pulp from cellulose chips has a digeste...  
JP2004285531A
To provide a technique for further improving a delignification rate in digestion in the case of producing chemical pulp from a lignocellulosic material by either one digestion method selected from kraft pulp digestion, modified kraft pul...  
JP2004256925A
To provide a method for pretreating wood chips by which the digestibility can be improved at a low cost in a short time when slightly digestible and slightly bleachable single wood chips of the genus Eucalyptus or mixed wood chips contai...  
JP2004256924A
To provide a method for pretreating wood chips by which the disgestibility when slightly digestible single material chips of the genus Eucalyptus or mixed wood chips containing the wood of the genus Eucalyptus are pulped with an alkaline...  
JP2004232184A
To provide a feeder for comminuted cellulose fibrous material simplifying the apparatus, capable of dramatically reducing required numbers of the apparatus elements.The system for producing chemical cellulose pulp from comminuted fibrous...  
JP2004225201A
To primarily provide a production technique of a chemithermo mechanical pulp using only Cryptomeria japonica grown in Japan as a raw material and to secondarily provide the chemithermo mechanical pulp and to thirdly provide a newsprint p...  
JP2004211280A
To provide a method for using low specific gravity wood from thinning operations and for lyocell pulp.The pulp comprises at least 7 wt.% hemicellulose, and has a viscosity less than 32 cP, a copper number less than 2, a weighted average ...  
JP2004211281A
To provide pulp useful for producing lyocell products, to provide a method for producing the pulp, to provide lyocell products made from the pulp, to provide a method for producing the lyocell products, and especially, to provide a metho...  
JP2004211283A
To provide a method for economically producing lyocell products from a pulp containing hemicellulose usually removed.The method for producing lyocell products comprises making a dope from the pulp and forming lyocell products from the do...  
JP2004211282A
To provide a method for using low specific gravity wood from thinning operations as lyocell pulp.The method for producing the pulp comprises pulping a wood material with a specific gravity less than 0.41 by an alkaline pulping process an...  
JP2004204370A
To provide a new technique by which high whiteness bleached pulp can be produced from hardly bleachable wood containing extracts in a large amount, and to provide a technique by which the amount of a bleaching agent to be used can be red...  
JP2004190150A
To provide a technique for efficiently carrying out preliminary permeation of a cooking liquor into wood chips in continuous cooking of kraft pulp as first problem to be solved and to improve cookability and pulp yield by preliminary per...  
JP2004169204A
To provide a method for producing high whiteness bleached kraft pulp, by which the cooking and bleaching properties of hardly cookable and hardly bleachable materials of Betula, Acer, Quercus, and/or Juglans, or a material containing the...  

Matches 701 - 750 out of 1,036