CH479767A - Process for the production of semi-pulps - Google Patents

Process for the production of semi-pulps

Info

Publication number
CH479767A
CH479767A CH479766A CH479766A CH479767A CH 479767 A CH479767 A CH 479767A CH 479766 A CH479766 A CH 479766A CH 479766 A CH479766 A CH 479766A CH 479767 A CH479767 A CH 479767A
Authority
CH
Switzerland
Prior art keywords
pulps
semi
production
Prior art date
Application number
CH479766A
Other languages
German (de)
Inventor
Groth Bertil Sixten I R
Original Assignee
Defibrator 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 Defibrator Ab filed Critical Defibrator Ab
Publication of CH479767A publication Critical patent/CH479767A/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
    • 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
CH479766A 1965-04-02 1966-04-01 Process for the production of semi-pulps CH479767A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE426965A SE306659B (en) 1965-04-02 1965-04-02

Publications (1)

Publication Number Publication Date
CH479767A true CH479767A (en) 1969-10-15

Family

ID=20263829

Family Applications (1)

Application Number Title Priority Date Filing Date
CH479766A CH479767A (en) 1965-04-02 1966-04-01 Process for the production of semi-pulps

Country Status (10)

Country Link
JP (1) JPS5335161B1 (en)
BE (1) BE678920A (en)
CH (1) CH479767A (en)
CS (1) CS150171B2 (en)
DE (1) DE1692844A1 (en)
FI (1) FI43668C (en)
FR (1) FR1474458A (en)
GB (1) GB1147433A (en)
NL (1) NL6604344A (en)
SE (1) SE306659B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174209A (en) * 1978-06-19 1979-11-13 Eli Lilly And Company Herbicidal 1-alkyl-3-phenylpyridinium salts

Also Published As

Publication number Publication date
JPS5335161B1 (en) 1978-09-26
FI43668C (en) 1971-05-10
GB1147433A (en) 1969-04-02
CS150171B2 (en) 1973-09-04
BE678920A (en) 1966-10-03
SE306659B (en) 1968-12-02
DE1692844A1 (en) 1971-10-28
FR1474458A (en) 1967-03-24
NL6604344A (en) 1966-10-03
FI43668B (en) 1971-02-01

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Legal Events

Date Code Title Description
PL Patent ceased