BR9505502A - Processo para deslignificação e branqueamento de polpa de organossolvente e polpa de organossolvente - Google Patents

Processo para deslignificação e branqueamento de polpa de organossolvente e polpa de organossolvente

Info

Publication number
BR9505502A
BR9505502A BR9505502A BR9505502A BR9505502A BR 9505502 A BR9505502 A BR 9505502A BR 9505502 A BR9505502 A BR 9505502A BR 9505502 A BR9505502 A BR 9505502A BR 9505502 A BR9505502 A BR 9505502A
Authority
BR
Brazil
Prior art keywords
organosolvent
pulp
delignification
bleaching
organosolvent pulp
Prior art date
Application number
BR9505502A
Other languages
English (en)
Portuguese (pt)
Inventor
Malcolm Cronlund
Jairo H Lora
Jeanne Powers
Uday Singh
Original Assignee
Alcell Tech 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 Alcell Tech Inc filed Critical Alcell Tech Inc
Publication of BR9505502A publication Critical patent/BR9505502A/pt

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)
BR9505502A 1994-11-23 1995-11-23 Processo para deslignificação e branqueamento de polpa de organossolvente e polpa de organossolvente BR9505502A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US34417094A 1994-11-23 1994-11-23

Publications (1)

Publication Number Publication Date
BR9505502A true BR9505502A (pt) 1997-10-28

Family

ID=23349348

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9505502A BR9505502A (pt) 1994-11-23 1995-11-23 Processo para deslignificação e branqueamento de polpa de organossolvente e polpa de organossolvente

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)

Families Citing this family (20)

* 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.
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
US10865519B2 (en) 2016-11-16 2020-12-15 Gp Cellulose Gmbh Modified cellulose from chemical fiber and methods of making and using the same
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

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

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
CA2163389A1 (en) 1996-05-24
EP0716182A2 (en) 1996-06-12
FI955622A (fi) 1996-05-24
AU3900295A (en) 1996-05-30

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law