BR9305760A - Processo para deslignificaçao de material lignocelulósico - Google Patents

Processo para deslignificaçao de material lignocelulósico

Info

Publication number
BR9305760A
BR9305760A BR9305760A BR9305760A BR9305760A BR 9305760 A BR9305760 A BR 9305760A BR 9305760 A BR9305760 A BR 9305760A BR 9305760 A BR9305760 A BR 9305760A BR 9305760 A BR9305760 A BR 9305760A
Authority
BR
Brazil
Prior art keywords
lignocellulosic material
delignification process
material delignification
lignocellulosic
delignification
Prior art date
Application number
BR9305760A
Other languages
English (en)
Inventor
Sudhir K Mendiratta
David W Cawlfield
Glenn F Rudie
Venketa R Parthasarathy
Original Assignee
Olin Corp
Mead Corp
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 Olin Corp, Mead Corp filed Critical Olin Corp
Publication of BR9305760A publication Critical patent/BR9305760A/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
    • 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
BR9305760A 1992-01-22 1993-01-19 Processo para deslignificaçao de material lignocelulósico BR9305760A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82379592A 1992-01-22 1992-01-22
PCT/US1993/000408 WO1993015264A1 (en) 1992-01-22 1993-01-19 Gas phase delignification of lignocellulosic material

Publications (1)

Publication Number Publication Date
BR9305760A true BR9305760A (pt) 1997-01-28

Family

ID=25239744

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9305760A BR9305760A (pt) 1992-01-22 1993-01-19 Processo para deslignificaçao de material lignocelulósico

Country Status (10)

Country Link
EP (1) EP0705361A1 (pt)
JP (1) JPH07502082A (pt)
AU (1) AU656658B2 (pt)
BR (1) BR9305760A (pt)
CA (1) CA2128408A1 (pt)
FI (1) FI943466A0 (pt)
NZ (1) NZ245712A (pt)
RU (1) RU94036007A (pt)
WO (1) WO1993015264A1 (pt)
ZA (1) ZA93224B (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2743094B1 (fr) * 1995-12-27 1998-02-13 Centre Tech Ind Papier Procede de blanchiment des pates a papier chimiques
US6773547B2 (en) * 1998-05-08 2004-08-10 American Air Liquide, Inc. Process for the bleaching of low consistency pulp using high partial pressure ozone
US6579412B2 (en) * 1998-05-08 2003-06-17 L'air Liquide - Societe' Anonyme A' Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Process for ozone bleaching of low consistency pulp
WO2002016691A1 (en) * 2000-08-25 2002-02-28 Akzo Nobel N.V. Chemical method
FI122626B (fi) 2006-03-31 2012-04-30 Laennen Tutkimus Western Res Inc Oy Kemiallisen massan valkaisumenetelmä
EP3536694B1 (en) 2014-08-06 2020-12-02 California Institute of Technology Silylation of aromatic heterocycles by earth abundant transition-metal-free catalysts
US10787475B2 (en) * 2017-11-07 2020-09-29 Ingevity South Carolina, Llc Methods of making low color lignin

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1957937A (en) * 1930-10-10 1934-05-08 Int Paper Co Process of bleaching fibrous cellulose material
CA902859A (en) * 1969-11-26 1972-06-20 Pulp And Paper Research Institute Of Canada Chemical reaction between a solid and a gas
US3810969A (en) * 1971-06-22 1974-05-14 Hooker Chemical Corp Process for the production of chlorine dioxide
US4216054A (en) * 1977-09-26 1980-08-05 Weyerhaeuser Company Low-consistency ozone delignification
US4902381A (en) * 1988-12-09 1990-02-20 Kamyr, Inc. Method of bleaching pulp with ozone-chlorine mixtures
US4959124A (en) * 1989-05-05 1990-09-25 International Paper Company Method of bleaching kraft pulp in a DZED sequence
US5034095A (en) * 1989-06-01 1991-07-23 Oji Paper Co., Ltd. Apparatus and process for the delignification of cellulose pulp
EP0561786B1 (en) * 1990-08-14 1997-11-26 International Paper Company Bleaching chemical pulp using chlorine/chlorine dioxide then ozone

Also Published As

Publication number Publication date
ZA93224B (en) 1993-08-18
EP0705361A4 (en) 1995-09-27
CA2128408A1 (en) 1993-08-05
WO1993015264A1 (en) 1993-08-05
FI943466A (fi) 1994-07-21
FI943466A0 (fi) 1994-07-21
NZ245712A (en) 1994-09-27
AU3476993A (en) 1993-09-01
JPH07502082A (ja) 1995-03-02
EP0705361A1 (en) 1996-04-10
AU656658B2 (en) 1995-02-09
RU94036007A (ru) 1996-06-10

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Legal Events

Date Code Title Description
EE Request for examination
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FA8 Dismissal: dismissal - article 36, par. 1 of industrial property law