SE7812047L - SET FOR PREPARATION OF SULPHATE MASS - Google Patents

SET FOR PREPARATION OF SULPHATE MASS

Info

Publication number
SE7812047L
SE7812047L SE7812047A SE7812047A SE7812047L SE 7812047 L SE7812047 L SE 7812047L SE 7812047 A SE7812047 A SE 7812047A SE 7812047 A SE7812047 A SE 7812047A SE 7812047 L SE7812047 L SE 7812047L
Authority
SE
Sweden
Prior art keywords
temperature
preparation
lignocellulose
degree
methods
Prior art date
Application number
SE7812047A
Other languages
Swedish (sv)
Other versions
SE426854B (en
Inventor
G E Annergren
S O E Backlund
P O A Bodin
O J Lehtinen
Original Assignee
Sca Development 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 Sca Development Ab filed Critical Sca Development Ab
Priority to SE7812047A priority Critical patent/SE426854B/en
Priority to FI793416A priority patent/FI793416A/en
Priority to NO793752A priority patent/NO793752L/en
Priority to CA340,287A priority patent/CA1127358A/en
Publication of SE7812047L publication Critical patent/SE7812047L/en
Publication of SE426854B publication Critical patent/SE426854B/en

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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds

Landscapes

  • Paper (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicinal Preparation (AREA)

Abstract

Methods of manufacturing sulphate pulp from lignocellulose-contain-ing material are disclosed. The yields obtainable in such methods are increased by assuring that the time during which the lignocellulose-containing material is in contact with the cooking liquor at a temperature in the range of from about 80.degree.C. to 140.degree.C. is very short. To accomplish this, impregna-tion is substantially carried out at a temperature which lies outside of th\At range, and which is lower than the cooking temperature.
SE7812047A 1978-11-22 1978-11-22 Process for the preparation of sulphate pulp from a lignocellulose-containing material SE426854B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE7812047A SE426854B (en) 1978-11-22 1978-11-22 Process for the preparation of sulphate pulp from a lignocellulose-containing material
FI793416A FI793416A (en) 1978-11-22 1979-11-01 SAETT FOER FRAMSTAELLNING AV SULFATMASSA
NO793752A NO793752L (en) 1978-11-22 1979-11-20 PROCEDURE FOR THE SULPHATE PREPARATION.
CA340,287A CA1127358A (en) 1978-11-22 1979-11-21 Method of manufacturing sulphate pulp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7812047A SE426854B (en) 1978-11-22 1978-11-22 Process for the preparation of sulphate pulp from a lignocellulose-containing material

Publications (2)

Publication Number Publication Date
SE7812047L true SE7812047L (en) 1980-05-23
SE426854B SE426854B (en) 1983-02-14

Family

ID=20336428

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7812047A SE426854B (en) 1978-11-22 1978-11-22 Process for the preparation of sulphate pulp from a lignocellulose-containing material

Country Status (4)

Country Link
CA (1) CA1127358A (en)
FI (1) FI793416A (en)
NO (1) NO793752L (en)
SE (1) SE426854B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ247276A (en) * 1992-04-06 1994-12-22 Westvaco Corp Production of papermaking fibre of low lignin content from recycled high lignin waste paper; mixtures with fresh pulp and products produced therefrom

Also Published As

Publication number Publication date
NO793752L (en) 1980-05-23
FI793416A (en) 1980-05-23
CA1127358A (en) 1982-07-13
SE426854B (en) 1983-02-14

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