FR2286234A1 - Fabrication de pate de cellulose blanchie - Google Patents

Fabrication de pate de cellulose blanchie

Info

Publication number
FR2286234A1
FR2286234A1 FR7529671A FR7529671A FR2286234A1 FR 2286234 A1 FR2286234 A1 FR 2286234A1 FR 7529671 A FR7529671 A FR 7529671A FR 7529671 A FR7529671 A FR 7529671A FR 2286234 A1 FR2286234 A1 FR 2286234A1
Authority
FR
France
Prior art keywords
paste
liquor
carpet
bleaching
solns
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.)
Granted
Application number
FR7529671A
Other languages
English (en)
French (fr)
Other versions
FR2286234B1 (https=
Inventor
William Howard Rapson
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.)
Erco Envirotech Ltd
Original Assignee
Erco Envirotech 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
Application filed by Erco Envirotech Ltd filed Critical Erco Envirotech Ltd
Publication of FR2286234A1 publication Critical patent/FR2286234A1/fr
Application granted granted Critical
Publication of FR2286234B1 publication Critical patent/FR2286234B1/fr
Granted 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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1031—Pulse, dynamic, displacement 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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FR7529671A 1974-09-27 1975-09-26 Fabrication de pate de cellulose blanchie Granted FR2286234A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA210200 1974-09-27

Publications (2)

Publication Number Publication Date
FR2286234A1 true FR2286234A1 (fr) 1976-04-23
FR2286234B1 FR2286234B1 (https=) 1979-01-05

Family

ID=4101229

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7529671A Granted FR2286234A1 (fr) 1974-09-27 1975-09-26 Fabrication de pate de cellulose blanchie

Country Status (2)

Country Link
BR (1) BR7506255A (https=)
FR (1) FR2286234A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524025A1 (fr) * 1982-03-29 1983-09-30 Kamyr Ab Methode de traitement de pulpe par deplacement de liquides par d'autres liquides

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1443743A (fr) * 1964-08-13 1966-06-24 Electric Reduction Co Procédé de blanchiment des pâtes cellulosiques
FR2210695A1 (https=) * 1972-12-15 1974-07-12 Erco Envirotech Ltd

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1443743A (fr) * 1964-08-13 1966-06-24 Electric Reduction Co Procédé de blanchiment des pâtes cellulosiques
FR2210695A1 (https=) * 1972-12-15 1974-07-12 Erco Envirotech Ltd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524025A1 (fr) * 1982-03-29 1983-09-30 Kamyr Ab Methode de traitement de pulpe par deplacement de liquides par d'autres liquides

Also Published As

Publication number Publication date
AU8524475A (en) 1977-04-07
BR7506255A (pt) 1976-08-31
FR2286234B1 (https=) 1979-01-05

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Legal Events

Date Code Title Description
ST Notification of lapse