JPS5132802A - - Google Patents

Info

Publication number
JPS5132802A
JPS5132802A JP50069788A JP6978875A JPS5132802A JP S5132802 A JPS5132802 A JP S5132802A JP 50069788 A JP50069788 A JP 50069788A JP 6978875 A JP6978875 A JP 6978875A JP S5132802 A JPS5132802 A JP S5132802A
Authority
JP
Japan
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
JP50069788A
Other languages
Japanese (ja)
Other versions
JPS522003B2 (fi
Inventor
Edowaado Ietoon Andoryuu
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.)
PPG Architectural Coatings Canada Inc
Original Assignee
Canadian 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 Canadian Industries Ltd filed Critical Canadian Industries Ltd
Publication of JPS5132802A publication Critical patent/JPS5132802A/ja
Publication of JPS522003B2 publication Critical patent/JPS522003B2/ja
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-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
    • D21C9/10Bleaching ; Apparatus therefor
    • D21C9/1063Bleaching ; Apparatus therefor with compounds not otherwise provided for, e.g. activated gases
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-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
    • D21C9/10Bleaching ; Apparatus therefor
    • D21C9/1057Multistage, 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)
JP50069788A 1974-06-11 1975-06-11 Expired JPS522003B2 (fi)

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 (2)

Publication Number Publication Date
JPS5132802A true JPS5132802A (fi) 1976-03-19
JPS522003B2 JPS522003B2 (fi) 1977-01-19

Family

ID=10234280

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50069788A Expired JPS522003B2 (fi) 1974-06-11 1975-06-11

Country Status (10)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5725490A (en) * 1980-06-05 1982-02-10 Mo Och Domsjoe Ab Bleaching of cellulose pulp by oxygen gas
JPS57161185A (en) * 1981-03-23 1982-10-04 Mo Och Domsjoe Ab Delignification of cellulose pulp

Families Citing this family (4)

* 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
DE3118384C1 (de) * 1981-05-09 1982-11-11 Mannesmann AG, 4000 Düsseldorf Verfahren zum Bleichen von chemisch hergestelltem Zellstoff mit Ozon
SE448006B (sv) * 1981-09-21 1987-01-12 Mo Och Domsjoe Ab Forfarande for blekning av cellulosamassa innefattande ett aktiveringssteg med kveveoxider
SE450393B (sv) * 1981-10-27 1987-06-22 Mo Och Domsjoe Ab Forfarande for behandling av ved med kveveoxider och syrgas fore sulfatkokning

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE204460C (fi) *
DE212838C (fi) *
DE391713C (de) * 1922-12-12 1924-03-11 Paul Krais Dr Verfahren zum Aufschliessen von Stroh, Schilf u. dgl.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5725490A (en) * 1980-06-05 1982-02-10 Mo Och Domsjoe Ab Bleaching of cellulose pulp by oxygen gas
JPS6350465B2 (fi) * 1980-06-05 1988-10-07 Mo Och Domsjoe Ab
JPS57161185A (en) * 1981-03-23 1982-10-04 Mo Och Domsjoe Ab Delignification of cellulose pulp
JPS6360158B2 (fi) * 1981-03-23 1988-11-22

Also Published As

Publication number Publication date
JPS522003B2 (fi) 1977-01-19
NO147761C (no) 1983-06-08
DE2526084A1 (de) 1976-01-02
GB1505070A (en) 1978-03-22
ES438433A1 (es) 1977-05-16
BR7503680A (pt) 1976-06-29
SE7506646L (sv) 1975-12-12
FR2274729A1 (fr) 1976-01-09
CA1045759A (en) 1979-01-09
AU8201275A (en) 1976-12-16
FI751734A (fi) 1975-12-12
FR2274729B1 (fi) 1978-09-22
NO752025L (fi) 1975-12-12
NO147761B (no) 1983-02-28
DE2526084C2 (de) 1981-11-26

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