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FI60733C - Saett och anordning foer att foerbaettra blekningsfoerloppet vid blekning av cellulosamassa - Google Patents

Saett och anordning foer att foerbaettra blekningsfoerloppet vid blekning av cellulosamassa Download PDF

Info

Publication number
FI60733C
FI60733C FI90273A FI90273A FI60733C FI 60733 C FI60733 C FI 60733C FI 90273 A FI90273 A FI 90273A FI 90273 A FI90273 A FI 90273A FI 60733 C FI60733 C FI 60733C
Authority
FI
Finland
Prior art keywords
pulp
impregnation
magnesium
alkali
att
Prior art date
Application number
FI90273A
Other languages
English (en)
Finnish (fi)
Other versions
FI60733B (fi
Inventor
Goethe Norberg
Hans Olof Samuelson
Original Assignee
Mo Och Domsjoe Ab
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 Mo Och Domsjoe Ab filed Critical Mo Och Domsjoe Ab
Application granted granted Critical
Publication of FI60733B publication Critical patent/FI60733B/fi
Publication of FI60733C publication Critical patent/FI60733C/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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI90273A 1972-03-30 1973-03-22 Saett och anordning foer att foerbaettra blekningsfoerloppet vid blekning av cellulosamassa FI60733C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE425172 1972-03-30
SE7204251A SE373397C (sv) 1972-03-30 1972-03-30 Sett att forbettra blekningsforloppet vid bleknig av cellulosamassa med en syre innehallande gas

Publications (2)

Publication Number Publication Date
FI60733B FI60733B (fi) 1981-11-30
FI60733C true FI60733C (fi) 1982-03-10

Family

ID=20263802

Family Applications (1)

Application Number Title Priority Date Filing Date
FI90273A FI60733C (fi) 1972-03-30 1973-03-22 Saett och anordning foer att foerbaettra blekningsfoerloppet vid blekning av cellulosamassa

Country Status (6)

Country Link
JP (1) JPS5116524B2 (ru)
CA (1) CA1001360A (ru)
FI (1) FI60733C (ru)
FR (1) FR2177877A1 (ru)
SE (1) SE373397C (ru)
SU (1) SU847932A3 (ru)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE394466C (sv) * 1974-05-16 1986-06-23 Mannbro Systems Handelsbolag Sett vid kontinuerlig alkalisk delignifiering av lignocellulosamaterial i tva eller flera steg, varav det sista med syrgas
JPS583074B2 (ja) * 1975-11-17 1983-01-19 三菱瓦斯化学株式会社 パルプノ カサンカブツヒヨウハクホウ
CA2094819C (en) * 1990-10-24 1999-02-02 Ethan K. Andrews Pulping process

Also Published As

Publication number Publication date
FR2177877B1 (ru) 1975-08-22
SU847932A3 (ru) 1981-07-15
SE373397C (sv) 1984-02-06
FR2177877A1 (en) 1973-11-09
JPS5116524B2 (ru) 1976-05-25
FI60733B (fi) 1981-11-30
CA1001360A (en) 1976-12-14
JPS497503A (ru) 1974-01-23
SE373397B (sv) 1975-02-03

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