CA2163389A1 - Chlorine-free organosolv pulps - Google Patents

Chlorine-free organosolv pulps

Info

Publication number
CA2163389A1
CA2163389A1 CA002163389A CA2163389A CA2163389A1 CA 2163389 A1 CA2163389 A1 CA 2163389A1 CA 002163389 A CA002163389 A CA 002163389A CA 2163389 A CA2163389 A CA 2163389A CA 2163389 A1 CA2163389 A1 CA 2163389A1
Authority
CA
Canada
Prior art keywords
pulp
stage
bleaching
washing
oxygen
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA002163389A
Other languages
English (en)
French (fr)
Inventor
Malcolm Cronlund
Jairo H. Lora
Jeanne Powers
Uday Singh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcell Technologies Inc
Original Assignee
Malcolm Cronlund
Jairo H. Lora
Jeanne Powers
Uday Singh
Alcell Technologies 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 Malcolm Cronlund, Jairo H. Lora, Jeanne Powers, Uday Singh, Alcell Technologies Inc. filed Critical Malcolm Cronlund
Publication of CA2163389A1 publication Critical patent/CA2163389A1/en
Abandoned legal-status Critical Current

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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA002163389A 1994-11-23 1995-11-21 Chlorine-free organosolv pulps Abandoned CA2163389A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US34417094A 1994-11-23 1994-11-23
US344,170 1994-11-23

Publications (1)

Publication Number Publication Date
CA2163389A1 true CA2163389A1 (en) 1996-05-24

Family

ID=23349348

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002163389A Abandoned CA2163389A1 (en) 1994-11-23 1995-11-21 Chlorine-free organosolv pulps

Country Status (7)

Country Link
EP (1) EP0716182A3 (fi)
JP (1) JPH08260371A (fi)
AU (1) AU3900295A (fi)
BR (1) BR9505502A (fi)
CA (1) CA2163389A1 (fi)
FI (1) FI955622A (fi)
ZA (1) ZA959906B (fi)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200332376A1 (en) * 2014-06-03 2020-10-22 Board Of Trustees Of Michigan State University Economical methods for performing oxidative catalytic pretreatment of plant biomass using a homogeneous catalyst system
US11859145B1 (en) 2022-08-29 2024-01-02 Board Of Trustees Of Michigan State University Economical methods for performing oxidative catalytic pretreatment of plant biomass using a single-stage two oxidant process

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0863113A1 (en) * 1997-03-07 1998-09-09 Akzo Nobel N.V. Process for treating wastewater
CA2282849C (en) 1997-03-07 2004-07-13 Akzo Nobel N.V. Process for treating wastewater
FI112958B (fi) * 1997-12-19 2004-02-13 Kemira Oyj Menetelmä kemiallisen massan valkaisemiseksi sekä valkaisuliuoksen käyttö
AU2001296904B2 (en) * 2000-10-17 2007-08-30 James Hardie Technology Limited Method and apparatus for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials
JP2002266272A (ja) * 2001-03-12 2002-09-18 Nippon Paper Industries Co Ltd セルロース質繊維材料パルプの漂白方法
WO2004063113A2 (en) 2003-01-09 2004-07-29 James Hardie International Finance B.V. Fiber cement composite materials using bleached cellulose fibers
US7976677B2 (en) * 2006-12-18 2011-07-12 International Paper Company Process of bleaching hardwood pulps in a D1 or D2 stage in a presence of a weak base
US7976676B2 (en) * 2006-12-18 2011-07-12 International Paper Company Process of bleaching softwood pulps in a D1 or D2 stage in a presence of a weak base
US9512563B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Surface treated modified cellulose from chemical kraft fiber and methods of making and using same
WO2010138941A2 (en) 2009-05-28 2010-12-02 Gp Cellulose Gmbh Modified cellulose from chemical kraft fiber and methods of making and using the same
US9512237B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Method for inhibiting the growth of microbes with a modified cellulose fiber
US9511167B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Modified cellulose from chemical kraft fiber and methods of making and using the same
FI123023B (fi) 2009-09-01 2012-10-15 Andritz Oy Menetelmä ja laitteisto suovan erottamiseksi
CO6330164A1 (es) 2011-07-12 2011-10-20 Univ Del Valle Método para producir fibras de celulosa y de hemicelulosa de alta resistencia a partir de biomasa lignocelulósica de las hojas y cogollos de la caña de azúcar
MX365675B (es) 2013-02-08 2019-06-10 Gp Cellulose Gmbh Fibra kraft de madera blanda que tiene un contenido mejorado de a-celulosa, y su uso en la produccion de productos de celulosa quimica.
RU2671653C2 (ru) * 2013-03-14 2018-11-06 ДжиПи СЕЛЛЬЮЛОУС ГМБХ Способ изготовления высокофункционального маловязкого крафтволокна с использованием последовательности кислотного отбеливания и волокно, изготовленное с помощью этого процесса
MX357604B (es) 2013-03-15 2018-07-16 Gp Cellulose Gmbh Una fibra kraft de baja viscosidad que tiene un contenido de carboxilo mejorado, y metodos para fabricar y usar la misma.
US10865519B2 (en) 2016-11-16 2020-12-15 Gp Cellulose Gmbh Modified cellulose from chemical fiber and methods of making and using the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1132993A (en) 1914-04-14 1915-03-23 Horace Wyman Photographic-film package.
CA1079008A (en) 1975-10-24 1980-06-10 Cp Associates Limited Solvent pulping process
US4764596A (en) 1985-11-05 1988-08-16 Repap Technologies Inc. Recovery of lignin
CA2053035C (en) * 1990-10-12 1997-09-30 Repap Enterprises Inc. Chlorine-free wood pulps and process of making

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200332376A1 (en) * 2014-06-03 2020-10-22 Board Of Trustees Of Michigan State University Economical methods for performing oxidative catalytic pretreatment of plant biomass using a homogeneous catalyst system
US11859145B1 (en) 2022-08-29 2024-01-02 Board Of Trustees Of Michigan State University Economical methods for performing oxidative catalytic pretreatment of plant biomass using a single-stage two oxidant process

Also Published As

Publication number Publication date
EP0716182A3 (en) 1996-11-13
ZA959906B (en) 1996-07-18
FI955622A0 (fi) 1995-11-22
JPH08260371A (ja) 1996-10-08
EP0716182A2 (en) 1996-06-12
BR9505502A (pt) 1997-10-28
FI955622A (fi) 1996-05-24
AU3900295A (en) 1996-05-30

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Legal Events

Date Code Title Description
FZDE Dead