FR1360172A - Process for the preparation of cellulose - Google Patents

Process for the preparation of cellulose

Info

Publication number
FR1360172A
FR1360172A FR912831A FR912831A FR1360172A FR 1360172 A FR1360172 A FR 1360172A FR 912831 A FR912831 A FR 912831A FR 912831 A FR912831 A FR 912831A FR 1360172 A FR1360172 A FR 1360172A
Authority
FR
France
Prior art keywords
cellulose
preparation
Prior art date
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.)
Expired
Application number
FR912831A
Other languages
French (fr)
Inventor
Manfred Luethgens
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.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
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 DEM50639A external-priority patent/DE1198666B/en
Application filed by Metallgesellschaft AG filed Critical Metallgesellschaft AG
Application granted granted Critical
Publication of FR1360172A publication Critical patent/FR1360172A/en
Expired legal-status Critical Current

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
    • 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
    • D21C7/00—Digesters
    • D21C7/08—Discharge devices
FR912831A 1961-10-20 1962-10-19 Process for the preparation of cellulose Expired FR1360172A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEM50639A DE1198666B (en) 1961-10-20 1961-10-20 Process for the production of pulp
FR6481A FR87339E (en) 1961-10-20 1965-02-22 Process for the preparation of cellulose

Publications (1)

Publication Number Publication Date
FR1360172A true FR1360172A (en) 1964-05-08

Family

ID=32963365

Family Applications (3)

Application Number Title Priority Date Filing Date
FR6482A Expired FR87972E (en) 1961-10-20 Process for the preparation of cellulose
FR912831A Expired FR1360172A (en) 1961-10-20 1962-10-19 Process for the preparation of cellulose
FR6481A Expired FR87339E (en) 1961-10-20 1965-02-22 Process for the preparation of cellulose

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR6482A Expired FR87972E (en) 1961-10-20 Process for the preparation of cellulose

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR6481A Expired FR87339E (en) 1961-10-20 1965-02-22 Process for the preparation of cellulose

Country Status (1)

Country Link
FR (3) FR1360172A (en)

Also Published As

Publication number Publication date
FR87339E (en) 1966-07-22
FR87972E (en) 1967-02-02

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