CA783483A - Processes for bleaching cellulosic pulps - Google Patents

Processes for bleaching cellulosic pulps

Info

Publication number
CA783483A
CA783483A CA783483A CA783483DA CA783483A CA 783483 A CA783483 A CA 783483A CA 783483 A CA783483 A CA 783483A CA 783483D A CA783483D A CA 783483DA CA 783483 A CA783483 A CA 783483A
Authority
CA
Canada
Prior art keywords
processes
cellulosic pulps
bleaching cellulosic
bleaching
pulps
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
CA783483A
Other languages
English (en)
Inventor
H. Rapson William
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.)
Electric Reduction Company of Canada Ltd
Original Assignee
Electric Reduction Company of Canada 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.)
Publication date
Application granted granted Critical
Publication of CA783483A publication Critical patent/CA783483A/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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA783483A 1964-08-13 Processes for bleaching cellulosic pulps Expired CA783483A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3308964A GB1100724A (en) 1964-08-13 1964-08-13 Improvements in the bleaching of pulp

Publications (1)

Publication Number Publication Date
CA783483A true CA783483A (en) 1968-04-23

Family

ID=10348429

Family Applications (1)

Application Number Title Priority Date Filing Date
CA783483A Expired CA783483A (en) 1964-08-13 Processes for bleaching cellulosic pulps

Country Status (9)

Country Link
JP (1) JPS4830963B1 (fi)
BE (1) BE667857A (fi)
CA (1) CA783483A (fi)
DE (1) DE1546246B2 (fi)
FI (1) FI44325C (fi)
FR (1) FR1443743A (fi)
GB (1) GB1100724A (fi)
NO (1) NO122218B (fi)
SE (1) SE306877B (fi)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2210695A1 (fi) * 1972-12-15 1974-07-12 Erco Envirotech Ltd
US4915785A (en) * 1988-12-23 1990-04-10 C-I-L Inc. Single stage process for bleaching of pulp with an aqueous hydrogen peroxide bleaching composition containing magnesium sulphate and sodium silicate

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036368U (fi) * 1973-07-25 1975-04-16
JPS5038966U (fi) * 1973-08-02 1975-04-22
FR2286234A1 (fr) * 1974-09-27 1976-04-23 Erco Envirotech Ltd Fabrication de pate de cellulose blanchie
SE426607B (sv) * 1982-03-29 1983-01-31 Kamyr Ab Sett att behandla en massasuspension som er i rorelse lengs en bana medelst fortrengning av massans suspensionsvetska med en eller flera ersettningsvetskor
FI67891C (fi) * 1983-02-17 1985-06-10 Larox Ag Foerfarande foer behandling av den fraon en cellulosas kokningsprocess erhaollna cellulosan
FI85513C (fi) * 1989-04-07 1992-04-27 Salomans Oy Foerfarande foer behandling av fibermassa med kemikalieloesning.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2210695A1 (fi) * 1972-12-15 1974-07-12 Erco Envirotech Ltd
US4915785A (en) * 1988-12-23 1990-04-10 C-I-L Inc. Single stage process for bleaching of pulp with an aqueous hydrogen peroxide bleaching composition containing magnesium sulphate and sodium silicate

Also Published As

Publication number Publication date
FI44325C (fi) 1971-10-11
DE1546246B2 (de) 1976-10-07
DE1546246A1 (de) 1969-07-17
GB1100724A (en) 1968-01-24
FR1443743A (fr) 1966-06-24
JPS4830963B1 (fi) 1973-09-26
NO122218B (fi) 1971-06-01
SE306877B (fi) 1968-12-09
BE667857A (fi) 1965-12-01
FI44325B (fi) 1971-06-30

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