CA1246304A - Process and apparatus for bleaching of pulp - Google Patents

Process and apparatus for bleaching of pulp

Info

Publication number
CA1246304A
CA1246304A CA000437765A CA437765A CA1246304A CA 1246304 A CA1246304 A CA 1246304A CA 000437765 A CA000437765 A CA 000437765A CA 437765 A CA437765 A CA 437765A CA 1246304 A CA1246304 A CA 1246304A
Authority
CA
Canada
Prior art keywords
pulp
extraction
stage
layer
process according
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
CA000437765A
Other languages
English (en)
French (fr)
Inventor
John A. Histed
A. Robert Taylor
Rogelio E. Vega Canovas
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.)
Cip Inc
Original Assignee
Cip Inc
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 Cip Inc filed Critical Cip Inc
Application granted granted Critical
Publication of CA1246304A publication Critical patent/CA1246304A/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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
    • D21C11/0028—Effluents derived from the washing or bleaching plants
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA000437765A 1982-09-29 1983-09-28 Process and apparatus for bleaching of pulp Expired CA1246304A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42655282A 1982-09-29 1982-09-29
US426,552 1982-09-29

Publications (1)

Publication Number Publication Date
CA1246304A true CA1246304A (en) 1988-12-13

Family

ID=23691253

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000437765A Expired CA1246304A (en) 1982-09-29 1983-09-28 Process and apparatus for bleaching of pulp

Country Status (5)

Country Link
JP (1) JPS5988988A (ja)
AU (1) AU1923683A (ja)
CA (1) CA1246304A (ja)
SE (1) SE8305210L (ja)
ZA (1) ZA836912B (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017160935A1 (en) * 2016-03-16 2017-09-21 Ecolab Usa Inc. Low capital bleaching of chemical pulp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017160935A1 (en) * 2016-03-16 2017-09-21 Ecolab Usa Inc. Low capital bleaching of chemical pulp

Also Published As

Publication number Publication date
JPS5988988A (ja) 1984-05-23
SE8305210D0 (sv) 1983-09-27
ZA836912B (en) 1984-07-25
SE8305210L (sv) 1984-03-30
AU1923683A (en) 1984-04-05

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Legal Events

Date Code Title Description
MKEX Expiry
MKEX Expiry

Effective date: 20051213