BE791246A - WASTE PULP BLEACHING PROCESS - Google Patents

WASTE PULP BLEACHING PROCESS

Info

Publication number
BE791246A
BE791246A BE791246DA BE791246A BE 791246 A BE791246 A BE 791246A BE 791246D A BE791246D A BE 791246DA BE 791246 A BE791246 A BE 791246A
Authority
BE
Belgium
Prior art keywords
bleaching process
pulp bleaching
waste pulp
waste
pulp
Prior art date
Application number
Other languages
French (fr)
Inventor
R Simonette
Original Assignee
Hooker Chemical Corp
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.)
Publication date
Publication of BE791246A publication Critical patent/BE791246A/en

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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • 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
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
BE791246D 1971-11-10 WASTE PULP BLEACHING PROCESS BE791246A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19748571A 1971-11-10 1971-11-10

Publications (1)

Publication Number Publication Date
BE791246A true BE791246A (en) 1973-05-10

Family

ID=22729602

Family Applications (1)

Application Number Title Priority Date Filing Date
BE791246D BE791246A (en) 1971-11-10 WASTE PULP BLEACHING PROCESS

Country Status (8)

Country Link
JP (1) JPS4861706A (en)
BE (1) BE791246A (en)
CA (1) CA980513A (en)
DE (1) DE2254862A1 (en)
FR (1) FR2160058A5 (en)
GB (1) GB1396139A (en)
IT (1) IT970342B (en)
NL (1) NL7214950A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4244777A (en) 1979-11-07 1981-01-13 Weyerhaeuser Company Bleaching stilbene yellow dyed wood pulp
DE3937932A1 (en) * 1989-11-15 1991-05-16 Holtzmann & Cie Ag E Delignification and bleaching of pulp with alkali chlorite - by adding chlorite before acidification to produce nascent reagent, minimising pollution
JPH03294589A (en) * 1990-04-09 1991-12-25 Sanyo Kokusaku Pulp Co Ltd Treatment of unclassified waste information-recording paper
JPH0819630B2 (en) * 1991-07-29 1996-02-28 日本製紙株式会社 Method of erasing fluorescence in waste paper
US6315863B1 (en) 1998-06-18 2001-11-13 Weyerhaeuser Company Chlorine dioxide pulp bleaching process having reduced barium scaling by recycling post-chlorination waste filtrate
US7377993B2 (en) * 2004-03-03 2008-05-27 Tanya Smith Richardson Methods for reducing fluorescence in pulp and paper
CN103526629B (en) * 2013-10-23 2014-12-31 齐鲁工业大学 Pulping process of waste paper with high wet strength

Also Published As

Publication number Publication date
DE2254862A1 (en) 1973-05-17
IT970342B (en) 1974-04-10
JPS4861706A (en) 1973-08-29
NL7214950A (en) 1973-05-14
CA980513A (en) 1975-12-30
GB1396139A (en) 1975-06-04
FR2160058A5 (en) 1973-06-22

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