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CL2010000390A1 - Continuous process to produce a chemical grade pulp comprising a) steam treating lignocellulosic material between 1 and 60 minutes, b) impregnating the material in an impregnation vessel with green liquor up to 5 minutes and between 110 and 150 degrees Celsius and c) baking the material in a digester to produce the pulp. - Google Patents

Continuous process to produce a chemical grade pulp comprising a) steam treating lignocellulosic material between 1 and 60 minutes, b) impregnating the material in an impregnation vessel with green liquor up to 5 minutes and between 110 and 150 degrees Celsius and c) baking the material in a digester to produce the pulp.

Info

Publication number
CL2010000390A1
CL2010000390A1 CL2010000390A CL2010000390A CL2010000390A1 CL 2010000390 A1 CL2010000390 A1 CL 2010000390A1 CL 2010000390 A CL2010000390 A CL 2010000390A CL 2010000390 A CL2010000390 A CL 2010000390A CL 2010000390 A1 CL2010000390 A1 CL 2010000390A1
Authority
CL
Chile
Prior art keywords
minutes
produce
pulp
digester
impregnating
Prior art date
Application number
CL2010000390A
Other languages
Spanish (es)
Inventor
Shin Namhee
Original Assignee
Andritz Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Andritz Inc filed Critical Andritz Inc
Publication of CL2010000390A1 publication Critical patent/CL2010000390A1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
    • D—TEXTILES; PAPER
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/24—Continuous processes
    • D—TEXTILES; PAPER
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes

Landscapes

  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

Proceso continuo para producir una pulpa de grado químico que comprende a) tratar al vapor material lignocelulósico entre 1 y 60 minutos, b) impregnar el material en un recipiente de impregnación con licor verde hasta 5 minutos y entre 110 y 150 grados Celsius y c) cocer el material en un digestor para producir la pulpa.Continuous process to produce a chemical grade pulp comprising a) steam treating lignocellulosic material between 1 and 60 minutes, b) impregnating the material in an impregnation vessel with green liquor up to 5 minutes and between 110 and 150 degrees Celsius and c) baking the material in a digester to produce the pulp.

CL2010000390A 2009-04-21 2010-04-21 Continuous process to produce a chemical grade pulp comprising a) steam treating lignocellulosic material between 1 and 60 minutes, b) impregnating the material in an impregnation vessel with green liquor up to 5 minutes and between 110 and 150 degrees Celsius and c) baking the material in a digester to produce the pulp. CL2010000390A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17110909P 2009-04-21 2009-04-21
US12/720,967 US20100263813A1 (en) 2009-04-21 2010-03-10 Green liquor pretreatment of lignocellulosic material

Publications (1)

Publication Number Publication Date
CL2010000390A1 true CL2010000390A1 (en) 2011-04-08

Family

ID=42980106

Family Applications (1)

Application Number Title Priority Date Filing Date
CL2010000390A CL2010000390A1 (en) 2009-04-21 2010-04-21 Continuous process to produce a chemical grade pulp comprising a) steam treating lignocellulosic material between 1 and 60 minutes, b) impregnating the material in an impregnation vessel with green liquor up to 5 minutes and between 110 and 150 degrees Celsius and c) baking the material in a digester to produce the pulp.

Country Status (9)

Country Link
US (1) US20100263813A1 (en)
JP (1) JP2010255171A (en)
CN (1) CN101871176A (en)
BR (1) BRPI1001050A2 (en)
CA (1) CA2698163A1 (en)
CL (1) CL2010000390A1 (en)
FI (1) FI20105292L (en)
RU (1) RU2010115741A (en)
SE (1) SE535028C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2964210C (en) * 2014-10-15 2023-09-12 Licella Pty Ltd Integrated kraft pulp mill and thermochemical conversion system
CN110305683A (en) * 2019-05-14 2019-10-08 潘广国 A kind of sawdust deep processing production new cleaning fuel and preparation method

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1631511A (en) * 1927-06-07 Baymond c
US3520773A (en) * 1968-05-17 1970-07-14 Mac Millan Bloedel Ltd Alkaline pulping processes with chemical pretreatment
US5192369A (en) * 1986-11-20 1993-03-09 British Technology Group Ltd. Apparatus for spraying harvested crops
US5213662A (en) * 1991-08-14 1993-05-25 Kamyr, Inc. Treatment of chips with high temperature black liquor to reduce black liquor viscosity
JPH05321181A (en) * 1992-05-25 1993-12-07 New Oji Paper Co Ltd Production of pulp from dismounted material
SE9301161L (en) * 1993-04-07 1994-10-08 Sunds Defibrator Ind Ab Process for treating process water
US5660686A (en) * 1994-09-02 1997-08-26 Ahlstrom Machinery Inc. Cooking with spent liquor pretreatment of cellulose material
US5674359A (en) * 1995-02-08 1997-10-07 Ahlstrom Machinery Inc. Continuous cooking of cellulosic fibrous material with cold alkali impregnation
US5736006A (en) * 1996-10-10 1998-04-07 Ahlstrom Machinery Inc. Method and apparatus for pulping with controlled heating to improve delignification and pulp strength
JPH11286883A (en) * 1998-03-31 1999-10-19 Mitsubishi Paper Mills Ltd Kraft pulp manufacturing method
SE525065C2 (en) * 2003-04-17 2004-11-23 Kvaerner Pulping Tech Pre-treatment of chips with acidic liquid during steaming
FI120547B (en) * 2004-10-04 2009-11-30 Metso Paper Inc Alkaline cooking process and pulp making plant
FI126694B (en) * 2005-12-02 2017-04-13 Metsä Board Oyj Chemical-mechanical pulp and process for producing chemical-mechanical pulp
JP5207191B2 (en) * 2006-05-19 2013-06-12 ザ リサーチ ファンデーション オブ ステート ユニヴァーシティ オブ ニューヨーク Method for carbonate pretreatment and pulping of cellulosic materials
US20090038767A1 (en) * 2007-08-07 2009-02-12 Andritz Inc. Method and System for Semi-Chemical Pulping

Also Published As

Publication number Publication date
FI20105292A0 (en) 2010-03-24
RU2010115741A (en) 2011-10-27
JP2010255171A (en) 2010-11-11
FI20105292A7 (en) 2010-10-22
CN101871176A (en) 2010-10-27
SE535028C2 (en) 2012-03-20
US20100263813A1 (en) 2010-10-21
BRPI1001050A2 (en) 2011-03-22
SE1050387A1 (en) 2010-10-22
FI20105292L (en) 2010-10-22
CA2698163A1 (en) 2010-10-21

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