AU8186375A - Strengthening of mechanical pulp by chemical treatment - Google Patents

Strengthening of mechanical pulp by chemical treatment

Info

Publication number
AU8186375A
AU8186375A AU81863/75A AU8186375A AU8186375A AU 8186375 A AU8186375 A AU 8186375A AU 81863/75 A AU81863/75 A AU 81863/75A AU 8186375 A AU8186375 A AU 8186375A AU 8186375 A AU8186375 A AU 8186375A
Authority
AU
Australia
Prior art keywords
strengthening
chemical treatment
mechanical pulp
pulp
mechanical
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
AU81863/75A
Other versions
AU490573B2 (en
Inventor
Joseph Michael Mcdonough Thomas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PPG Architectural Coatings Canada Inc
Original Assignee
Canadian Industries Ltd
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
Priority claimed from GB2684674A external-priority patent/GB1434703A/en
Application filed by Canadian Industries Ltd filed Critical Canadian Industries Ltd
Application granted granted Critical
Publication of AU490573B2 publication Critical patent/AU490573B2/en
Publication of AU8186375A publication Critical patent/AU8186375A/en
Expired legal-status Critical Current

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
    • 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
    • D21C9/12—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)
AU81863/75A 1974-06-11 1975-06-05 Strengthening of mechanical pulp by chemical treatment Expired AU490573B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB25846/74 1974-06-11
GB2584674A GB1505076A (en) 1974-06-11 1974-06-11 Strenghening of mechanical pulp by chemical treatment
GB2684674A GB1434703A (en) 1973-06-19 1974-06-18 Webbers for the textile industry

Publications (2)

Publication Number Publication Date
AU490573B2 AU490573B2 (en) 1976-12-09
AU8186375A true AU8186375A (en) 1976-12-09

Family

ID=

Also Published As

Publication number Publication date
FR2274727A1 (en) 1976-01-09
FR2274727B1 (en) 1979-03-30
DE2526085A1 (en) 1976-01-02
DE2526085C3 (en) 1980-06-12
DE2526085B2 (en) 1979-09-13
GB1505076A (en) 1978-03-22

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