FR2242514A1 - Chlorine dioxide prodn associated with cellulose pulp bleaching - where it is used as bleaching agent - Google Patents

Chlorine dioxide prodn associated with cellulose pulp bleaching - where it is used as bleaching agent

Info

Publication number
FR2242514A1
FR2242514A1 FR7429740A FR7429740A FR2242514A1 FR 2242514 A1 FR2242514 A1 FR 2242514A1 FR 7429740 A FR7429740 A FR 7429740A FR 7429740 A FR7429740 A FR 7429740A FR 2242514 A1 FR2242514 A1 FR 2242514A1
Authority
FR
France
Prior art keywords
clo2
prodn
mixture
bleaching
bleaching agent
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
FR7429740A
Other languages
English (en)
Other versions
FR2242514B1 (fr
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 Industries Ltd
Original Assignee
Erco 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
Application filed by Erco Industries Ltd filed Critical Erco Industries Ltd
Publication of FR2242514A1 publication Critical patent/FR2242514A1/fr
Application granted granted Critical
Publication of FR2242514B1 publication Critical patent/FR2242514B1/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
    • D21C9/12—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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
    • D21C11/063—Treatment of gas streams comprising solid matter, e.g. the ashes resulting from the combustion of black liquor
    • D21C11/066—Separation of solid compounds from these gases; further treatment of recovered products
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FR7429740A 1973-08-30 1974-08-30 Chlorine dioxide prodn associated with cellulose pulp bleaching - where it is used as bleaching agent Granted FR2242514A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4086373 1973-08-30

Publications (2)

Publication Number Publication Date
FR2242514A1 true FR2242514A1 (en) 1975-03-28
FR2242514B1 FR2242514B1 (fr) 1982-02-19

Family

ID=10416999

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7429740A Granted FR2242514A1 (en) 1973-08-30 1974-08-30 Chlorine dioxide prodn associated with cellulose pulp bleaching - where it is used as bleaching agent

Country Status (3)

Country Link
JP (1) JPS5072893A (fr)
CA (1) CA1049711A (fr)
FR (1) FR2242514A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61289193A (ja) * 1985-06-14 1986-12-19 神崎製紙株式会社 パルプの漂白方法

Also Published As

Publication number Publication date
JPS5072893A (fr) 1975-06-16
FR2242514B1 (fr) 1982-02-19
CA1049711A (fr) 1979-03-06

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Legal Events

Date Code Title Description
ST Notification of lapse