BR9205620A - Polpa quimica, e, processo de branqueamento de polpa quimica. - Google Patents

Polpa quimica, e, processo de branqueamento de polpa quimica.

Info

Publication number
BR9205620A
BR9205620A BR9205620A BR9205620A BR9205620A BR 9205620 A BR9205620 A BR 9205620A BR 9205620 A BR9205620 A BR 9205620A BR 9205620 A BR9205620 A BR 9205620A BR 9205620 A BR9205620 A BR 9205620A
Authority
BR
Brazil
Prior art keywords
chemical pulp
bleaching process
chemical
pulp bleaching
pulp
Prior art date
Application number
BR9205620A
Other languages
English (en)
Inventor
Chung-Li Lee
Robert W Murray
Kenneth Hunt
Original Assignee
Pulp Paper Res Inst
Curators Of The Univeristy Of
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 Pulp Paper Res Inst, Curators Of The Univeristy Of filed Critical Pulp Paper Res Inst
Publication of BR9205620A publication Critical patent/BR9205620A/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
    • D21C9/16—Bleaching ; Apparatus therefor with per 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
    • 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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the 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
    • 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
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Compounds Of Unknown Constitution (AREA)
BR9205620A 1991-02-12 1992-02-04 Polpa quimica, e, processo de branqueamento de polpa quimica. BR9205620A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US65363991A 1991-02-12 1991-02-12
PCT/CA1992/000045 WO1992013993A1 (en) 1991-02-12 1992-02-04 Bleaching of lignocellulosic material with activated oxygen

Publications (1)

Publication Number Publication Date
BR9205620A true BR9205620A (pt) 1994-05-03

Family

ID=24621712

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9205620A BR9205620A (pt) 1991-02-12 1992-02-04 Polpa quimica, e, processo de branqueamento de polpa quimica.

Country Status (9)

Country Link
US (1) US5366593A (pt)
EP (1) EP0571433B1 (pt)
JP (1) JPH06505057A (pt)
AU (1) AU653782B2 (pt)
BR (1) BR9205620A (pt)
CA (1) CA2100361C (pt)
DE (1) DE69202149T2 (pt)
FI (1) FI108549B (pt)
WO (1) WO1992013993A1 (pt)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1251180B (it) * 1991-08-28 1995-05-04 Ausimont Spa Processo per la degradazione della lignina con diossirani
US5785887A (en) * 1992-04-17 1998-07-28 Colgate-Palmolive Company Peroxygen bleach composition
AU6130794A (en) * 1993-02-01 1994-08-29 Research Foundation Of The State University Of New York, The Improved process and composition for delignifying a lignocellulosic material
ATE252662T1 (de) * 1993-03-12 2003-11-15 Fmc Corp Persulfatmischungen zur aufbereitung von nassfestem papier
US5403549A (en) * 1993-11-04 1995-04-04 Cyclo3 pss Medical Systems, Inc. Method for sterilization using a fluid chemical biocide
US5437686A (en) * 1994-05-18 1995-08-01 Colgate-Palmolive Co. Peroxygen bleach composition activated by bi and tricyclic diketones
ATE284994T1 (de) * 1997-03-21 2005-01-15 Degussa Initiators Gmbh & Co K Bleichen und delignifizierung von zellstoff durch caroate/carosche säure und herstellung derselben
US6511578B2 (en) 1997-03-21 2003-01-28 Peroxid-Chemie Gmbh & Co. Kg Bleaching and delignifying cellulosic pulp using caroate/caro's acid solution
US6193837B1 (en) 1997-09-19 2001-02-27 Midwest Research Institute Preparation of brightness stabilization agent for lignin containing pulp from biomass pyrolysis oils
US7582594B2 (en) 2003-10-17 2009-09-01 Applied Research Associates, Inc. Dioxirane formulations for decontamination
US8246779B2 (en) * 2009-09-24 2012-08-21 Noram Engineering And Constructors Ltd. Maintenance of sulfur concentration in Kraft pulp processes
FI20105862A0 (fi) * 2010-08-18 2010-08-18 Bo Akademi University Menetelmä hekseeniuronihappojen poistamiseksi
DE102013010950B4 (de) 2012-06-28 2016-09-01 Hochschule Anhalt Elektrolysezelle und Verfahren zur elektrolytischen Erzeugung von Chlordioxid
DE102014014188A1 (de) 2014-09-24 2016-03-24 Hochschule Anhalt (Fh) Verfahren zur chemischen Erzeugung von Chlordioxid aus Chloritionen und Ozon

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1368400A (en) * 1971-08-05 1974-09-25 Procter & Gamble Bleaching process and compositions therefor
US4404061A (en) * 1981-08-17 1983-09-13 International Paper Company Bleaching of lignocellulosic materials with monopersulfuric acid or its salts
BR9007993A (pt) * 1990-02-16 1992-10-13 Pulp Paper Res Inst Processo para alvejar polpa quimica

Also Published As

Publication number Publication date
EP0571433B1 (en) 1995-04-19
DE69202149T2 (de) 1995-11-09
AU653782B2 (en) 1994-10-13
JPH06505057A (ja) 1994-06-09
AU1197292A (en) 1992-09-07
CA2100361C (en) 1997-07-22
FI933542A (fi) 1993-08-11
FI933542A0 (fi) 1993-08-11
DE69202149D1 (de) 1995-05-24
FI108549B (fi) 2002-02-15
WO1992013993A1 (en) 1992-08-20
EP0571433A1 (en) 1993-12-01
CA2100361A1 (en) 1992-08-13
US5366593A (en) 1994-11-22

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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