FI751734A - - Google Patents

Info

Publication number
FI751734A
FI751734A FI751734A FI751734A FI751734A FI 751734 A FI751734 A FI 751734A FI 751734 A FI751734 A FI 751734A FI 751734 A FI751734 A FI 751734A FI 751734 A FI751734 A FI 751734A
Authority
FI
Finland
Application number
FI751734A
Other languages
Finnish (fi)
Inventor
Andrew E Yethon
Original Assignee
Canadian Ind
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 Canadian Ind filed Critical Canadian Ind
Publication of FI751734A publication Critical patent/FI751734A/fi

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
    • D21C9/1063—Bleaching ; Apparatus therefor with compounds not otherwise provided for, e.g. activated gases
    • 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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
FI751734A 1974-06-11 1975-06-10 FI751734A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25845/74A GB1505070A (en) 1974-06-11 1974-06-11 Process for bleaching of lignocellulosic material

Publications (1)

Publication Number Publication Date
FI751734A true FI751734A (en) 1975-12-12

Family

ID=10234280

Family Applications (1)

Application Number Title Priority Date Filing Date
FI751734A FI751734A (en) 1974-06-11 1975-06-10

Country Status (10)

Country Link
JP (1) JPS522003B2 (en)
BR (1) BR7503680A (en)
CA (1) CA1045759A (en)
DE (1) DE2526084C2 (en)
ES (1) ES438433A1 (en)
FI (1) FI751734A (en)
FR (1) FR2274729A1 (en)
GB (1) GB1505070A (en)
NO (1) NO147761C (en)
SE (1) SE7506646L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1070909A (en) * 1976-05-04 1980-02-05 Canadian Industries Limited Nitrogen dioxide-oxygen delignification
SE421938B (en) * 1980-06-05 1982-02-08 Mo Och Domsjoe Ab PROCEDURE FOR TREATMENT OF CELLULOSAMASSA
SE425674B (en) * 1981-03-23 1982-10-25 Mo Och Domsjoe Ab PROCEDURE FOR DELIGNIFICATION OF CELLULOSAMASSA WITH NITROGEN Dioxide AND Oxygen
DE3118384C1 (en) * 1981-05-09 1982-11-11 Mannesmann AG, 4000 Düsseldorf Process for bleaching chemically produced pulp with ozone
SE448006B (en) * 1981-09-21 1987-01-12 Mo Och Domsjoe Ab PROCEDURE FOR WHITING CELLULOSAMASSA INCLUDING AN ACTIVATION STEP WITH NITROGEN OXIDES
SE450393B (en) * 1981-10-27 1987-06-22 Mo Och Domsjoe Ab PROCEDURE FOR TREATMENT OF WOOD WITH NITROGEN OXIDES AND OBJECTIVE SULFATE COOKING

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE204460C (en) *
DE212838C (en) *
DE391713C (en) * 1922-12-12 1924-03-11 Paul Krais Dr Method for breaking up straw, reeds and the like like

Also Published As

Publication number Publication date
NO147761B (en) 1983-02-28
NO752025L (en) 1975-12-12
FR2274729B1 (en) 1978-09-22
DE2526084A1 (en) 1976-01-02
SE7506646L (en) 1975-12-12
FR2274729A1 (en) 1976-01-09
JPS5132802A (en) 1976-03-19
DE2526084C2 (en) 1981-11-26
ES438433A1 (en) 1977-05-16
AU8201275A (en) 1976-12-16
BR7503680A (en) 1976-06-29
GB1505070A (en) 1978-03-22
JPS522003B2 (en) 1977-01-19
CA1045759A (en) 1979-01-09
NO147761C (en) 1983-06-08

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Legal Events

Date Code Title Description
FD Application lapsed

Owner name: CANADIAN INDUSTRIES LTD.