NO903893L - Delignifikasjon av lignocelluloseinneholdende fiber. - Google Patents

Delignifikasjon av lignocelluloseinneholdende fiber.

Info

Publication number
NO903893L
NO903893L NO90903893A NO903893A NO903893L NO 903893 L NO903893 L NO 903893L NO 90903893 A NO90903893 A NO 90903893A NO 903893 A NO903893 A NO 903893A NO 903893 L NO903893 L NO 903893L
Authority
NO
Norway
Prior art keywords
delignification
lignocellulose
containing fibers
fibers
Prior art date
Application number
NO90903893A
Other languages
English (en)
Other versions
NO903893D0 (no
Inventor
Augustine Ivanhoe Dalton
Original Assignee
Air Prod & Chem
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 Air Prod & Chem filed Critical Air Prod & Chem
Publication of NO903893D0 publication Critical patent/NO903893D0/no
Publication of NO903893L publication Critical patent/NO903893L/no

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
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
NO90903893A 1989-11-17 1990-09-06 Delignifikasjon av lignocelluloseinneholdende fiber. NO903893L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US43855189A 1989-11-17 1989-11-17

Publications (2)

Publication Number Publication Date
NO903893D0 NO903893D0 (no) 1990-09-06
NO903893L true NO903893L (no) 1991-05-21

Family

ID=23741064

Family Applications (1)

Application Number Title Priority Date Filing Date
NO90903893A NO903893L (no) 1989-11-17 1990-09-06 Delignifikasjon av lignocelluloseinneholdende fiber.

Country Status (8)

Country Link
EP (1) EP0429767A1 (no)
JP (1) JPH03161586A (no)
BR (1) BR9004674A (no)
CA (1) CA2023916A1 (no)
FI (1) FI904662A (no)
MY (1) MY106117A (no)
NO (1) NO903893L (no)
ZA (1) ZA907008B (no)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI925159A0 (fi) * 1992-11-13 1992-11-13 Ahlstroem Oy Foerfarande foer blekning av massa
US20090000751A1 (en) * 2007-06-29 2009-01-01 Caifang Yin Bleaching process with at least one extraction stage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568420B1 (en) * 1984-12-03 1999-03-02 Int Paper Co Multi-stage bleaching process including an enhanced oxidative extraction stage
CA1251903A (en) * 1985-06-17 1989-04-04 Pulp And Paper Research Institute Of Canada Alkaline-peroxide-oxygen treatment of unbleached and chlorinated chemical pulps
JPS6416958A (en) * 1987-07-13 1989-01-20 Toshiba Corp Apparatus for monitoring condition of waste liquid

Also Published As

Publication number Publication date
FI904662A (fi) 1991-05-18
JPH03161586A (ja) 1991-07-11
BR9004674A (pt) 1991-09-10
NO903893D0 (no) 1990-09-06
ZA907008B (en) 1992-05-27
FI904662A0 (fi) 1990-09-21
MY106117A (en) 1995-03-31
EP0429767A1 (en) 1991-06-05
CA2023916A1 (en) 1991-05-12

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