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FI102195B1 - Bleaching of lignocellulosic material with dioxiranes - Google Patents

Bleaching of lignocellulosic material with dioxiranes

Info

Publication number
FI102195B1
FI102195B1 FI923644A FI923644A FI102195B1 FI 102195 B1 FI102195 B1 FI 102195B1 FI 923644 A FI923644 A FI 923644A FI 923644 A FI923644 A FI 923644A FI 102195 B1 FI102195 B1 FI 102195B1
Authority
FI
Finland
Prior art keywords
dioxiranes
bleaching
lignocellulosic material
lignocellulosic
Prior art date
Application number
FI923644A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI102195B (en
FI923644A0 (en
FI923644L (en
Inventor
Chung-Li Lee
Original Assignee
Pulp Paper Res Inst
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 filed Critical Pulp Paper Res Inst
Publication of FI923644A0 publication Critical patent/FI923644A0/en
Publication of FI923644L publication Critical patent/FI923644L/en
Application granted granted Critical
Publication of FI102195B publication Critical patent/FI102195B/en
Publication of FI102195B1 publication Critical patent/FI102195B1/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
    • 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
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Detergent Compositions (AREA)
FI923644A 1990-02-16 1992-08-14 Bleaching of lignocellulosic material with dioxiranes FI102195B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/CA1990/000052 WO1991012369A1 (en) 1990-02-16 1990-02-16 Bleaching of lignocellulosic material with dioxiranes
CA9000052 1990-02-16

Publications (4)

Publication Number Publication Date
FI923644A0 FI923644A0 (en) 1992-08-14
FI923644L FI923644L (en) 1992-08-14
FI102195B FI102195B (en) 1998-10-30
FI102195B1 true FI102195B1 (en) 1998-10-30

Family

ID=4172838

Family Applications (1)

Application Number Title Priority Date Filing Date
FI923644A FI102195B1 (en) 1990-02-16 1992-08-14 Bleaching of lignocellulosic material with dioxiranes

Country Status (8)

Country Link
EP (1) EP0515362B1 (en)
JP (1) JPH0718113B2 (en)
AU (1) AU641640B2 (en)
BR (1) BR9007993A (en)
DE (1) DE69008870T2 (en)
FI (1) FI102195B1 (en)
NO (1) NO923145D0 (en)
WO (1) WO1991012369A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2100361C (en) * 1991-02-12 1997-07-22 Chung-Li Lee Bleaching of lignocellulosic material with activated oxygen
IT1251180B (en) * 1991-08-28 1995-05-04 Ausimont Spa PROCESS FOR LIGNIN DEGRADATION WITH DIOSSIRANS
US6706143B1 (en) 1996-03-19 2004-03-16 International Paper Company Minimizing chlorinated organics in pulp bleaching processes
JP2002302888A (en) * 2001-04-05 2002-10-18 Oji Paper Co Ltd Manufacturing method of bleached pulp

Also Published As

Publication number Publication date
EP0515362B1 (en) 1994-05-11
WO1991012369A1 (en) 1991-08-22
JPH05504173A (en) 1993-07-01
FI102195B (en) 1998-10-30
AU5168690A (en) 1991-09-03
AU641640B2 (en) 1993-09-30
JPH0718113B2 (en) 1995-03-01
NO923145L (en) 1992-08-12
DE69008870T2 (en) 1994-08-18
BR9007993A (en) 1992-10-13
FI923644A0 (en) 1992-08-14
NO923145D0 (en) 1992-08-12
DE69008870D1 (en) 1994-06-16
EP0515362A1 (en) 1992-12-02
FI923644L (en) 1992-08-14

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