CA1068054A - Method for controlling the addition of active chemical for delignifying and/or bleaching cellulose pulp suspended in a liquor containing chemicals reactive with the delignifying and/or bleaching chemical - Google Patents

Method for controlling the addition of active chemical for delignifying and/or bleaching cellulose pulp suspended in a liquor containing chemicals reactive with the delignifying and/or bleaching chemical

Info

Publication number
CA1068054A
CA1068054A CA234,455A CA234455A CA1068054A CA 1068054 A CA1068054 A CA 1068054A CA 234455 A CA234455 A CA 234455A CA 1068054 A CA1068054 A CA 1068054A
Authority
CA
Canada
Prior art keywords
bleaching
delignifying
chemical
pulp
chlorine
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
CA234,455A
Other languages
English (en)
French (fr)
Inventor
Bengt G. Hultman
John R. Bergstrom
Astrid T.P. Dalborg
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.)
Mo och Domsjo AB
Original Assignee
Mo och Domsjo AB
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 Mo och Domsjo AB filed Critical Mo och Domsjo AB
Application granted granted Critical
Publication of CA1068054A publication Critical patent/CA1068054A/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/228—Automation of the pulping 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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1052—Controlling the process

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
CA234,455A 1974-09-05 1975-08-29 Method for controlling the addition of active chemical for delignifying and/or bleaching cellulose pulp suspended in a liquor containing chemicals reactive with the delignifying and/or bleaching chemical Expired CA1068054A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7411247A SE384884C (sv) 1974-09-05 1974-09-05 Forfarande for reglering av tillforseln av reaktionskemikalier vid delignifiering och/eller blekning av massa

Publications (1)

Publication Number Publication Date
CA1068054A true CA1068054A (en) 1979-12-18

Family

ID=20322063

Family Applications (1)

Application Number Title Priority Date Filing Date
CA234,455A Expired CA1068054A (en) 1974-09-05 1975-08-29 Method for controlling the addition of active chemical for delignifying and/or bleaching cellulose pulp suspended in a liquor containing chemicals reactive with the delignifying and/or bleaching chemical

Country Status (7)

Country Link
JP (1) JPS5224121B2 (ja)
BR (1) BR7505690A (ja)
CA (1) CA1068054A (ja)
FI (1) FI61533C (ja)
FR (1) FR2288816A1 (ja)
NO (1) NO145060C (ja)
SE (1) SE384884C (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI80526C (fi) * 1986-09-08 1990-06-11 Savcor Consulting Oy Foerfarande foer styrning av cellulosakok.
SE455203B (sv) * 1986-10-20 1988-06-27 Eka Nobel Ab Forfarande for styrning av peroxidblekning av massa
US10400392B2 (en) * 2015-10-05 2019-09-03 Valmet Automation Oy Measurement apparatus and method

Also Published As

Publication number Publication date
SE7411247L (sv) 1976-03-08
JPS5224121B2 (ja) 1977-06-29
SE384884B (sv) 1976-05-24
FR2288816A1 (fr) 1976-05-21
FI61533B (fi) 1982-04-30
DE2537143A1 (de) 1976-03-25
NO753037L (ja) 1976-03-08
SE384884C (sv) 1985-11-13
NO145060B (no) 1981-09-21
JPS5153003A (ja) 1976-05-11
NO145060C (no) 1982-01-06
FR2288816B1 (ja) 1978-04-07
FI752343A (ja) 1976-03-06
FI61533C (fi) 1982-08-10
DE2537143B2 (de) 1977-05-18
BR7505690A (pt) 1976-08-03

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