AT362228B - Verfahren zum kontinuierlichen zellstoffkochen nach der sulfit- oder bisulfitmethode - Google Patents

Verfahren zum kontinuierlichen zellstoffkochen nach der sulfit- oder bisulfitmethode

Info

Publication number
AT362228B
AT362228B AT392676A AT392676A AT362228B AT 362228 B AT362228 B AT 362228B AT 392676 A AT392676 A AT 392676A AT 392676 A AT392676 A AT 392676A AT 362228 B AT362228 B AT 362228B
Authority
AT
Austria
Prior art keywords
sulfite
cooking
bisulfite
continuous cellular
cellular
Prior art date
Application number
AT392676A
Other languages
German (de)
English (en)
Other versions
ATA392676A (de
Inventor
Ilmo Yrjaelae
Lassi Suoninen
Original Assignee
Rauma Repola Oy
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
Priority claimed from FI751713A external-priority patent/FI53142C/fi
Priority claimed from FI751709A external-priority patent/FI52744C/fi
Priority claimed from FI751710A external-priority patent/FI53008C/fi
Priority claimed from FI751712A external-priority patent/FI53724C/fi
Application filed by Rauma Repola Oy filed Critical Rauma Repola Oy
Priority to AT846178A priority Critical patent/AT362229B/de
Publication of ATA392676A publication Critical patent/ATA392676A/de
Application granted granted Critical
Publication of AT362228B publication Critical patent/AT362228B/de

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
    • D21C7/00—Digesters
    • D21C7/06—Feeding devices
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/24—Continuous processes
AT392676A 1975-06-09 1976-05-28 Verfahren zum kontinuierlichen zellstoffkochen nach der sulfit- oder bisulfitmethode AT362228B (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT846178A AT362229B (de) 1975-06-09 1978-11-27 Kontinuierliches zellstoffkochverfahren nach der sulfit- oder bisulfitmethode und kocher zur durchfuehrung des verfahrens

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
FI751711 1975-06-09
FI751713A FI53142C (enrdf_load_stackoverflow) 1975-06-09 1975-06-09
FI751709A FI52744C (fi) 1975-06-09 1975-06-09 Kontinuerlig sulfit- eller bisulfitkokningsfoerfarande foer cellulosa och anordning foer foerverkligandet av foerfarandet
FI751710A FI53008C (fi) 1975-06-09 1975-06-09 Kontinuerlig sulfit- eller bisulfitkokningsfoerfarande foer cellulosa och kokare med anordningar foer foerverkligandet av foerfarandet
FI751712A FI53724C (fi) 1975-06-09 1975-06-09 Kontinuerlig kokningsmetod foer cellulosa och kokare med anordningar foer foerverkligandet av metoden
SE7909838A SE439786B (sv) 1975-06-09 1979-11-29 Kontinuerligt sulfit- eller bisulfitforfarande for cellulosakokning

Publications (2)

Publication Number Publication Date
ATA392676A ATA392676A (de) 1979-07-15
AT362228B true AT362228B (de) 1981-04-27

Family

ID=27545941

Family Applications (1)

Application Number Title Priority Date Filing Date
AT392676A AT362228B (de) 1975-06-09 1976-05-28 Verfahren zum kontinuierlichen zellstoffkochen nach der sulfit- oder bisulfitmethode

Country Status (4)

Country Link
AT (1) AT362228B (enrdf_load_stackoverflow)
DE (1) DE2625031A1 (enrdf_load_stackoverflow)
FR (1) FR2314291A1 (enrdf_load_stackoverflow)
SE (2) SE434858B (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
SE439786B (sv) 1985-07-01
SE7606204L (sv) 1976-12-10
SE434858B (sv) 1984-08-20
ATA392676A (de) 1979-07-15
SE7909838L (sv) 1979-11-29
DE2625031A1 (de) 1976-12-30
DE2625031C2 (enrdf_load_stackoverflow) 1989-01-05
FR2314291B3 (enrdf_load_stackoverflow) 1979-02-23
FR2314291A1 (fr) 1977-01-07

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
EIH Change in the person of patent owner
ELA Expired due to lapse of time