FR648706A - Process for preparing lignin-free cellulose - Google Patents

Process for preparing lignin-free cellulose

Info

Publication number
FR648706A
FR648706A FR648706DA FR648706A FR 648706 A FR648706 A FR 648706A FR 648706D A FR648706D A FR 648706DA FR 648706 A FR648706 A FR 648706A
Authority
FR
France
Prior art keywords
free cellulose
preparing lignin
lignin
preparing
cellulose
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
Other languages
French (fr)
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Application granted granted Critical
Publication of FR648706A publication Critical patent/FR648706A/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/18—Pulping cellulose-containing materials with halogens or halogen-generating compounds
FR648706D 1927-08-23 1928-02-13 Process for preparing lignin-free cellulose Expired FR648706A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI34291D DE506229C (en) 1927-08-23 1927-08-23 Process for the digestion of vegetable fibers with the help of calcium hypochlorite

Publications (1)

Publication Number Publication Date
FR648706A true FR648706A (en) 1928-12-13

Family

ID=10184461

Family Applications (1)

Application Number Title Priority Date Filing Date
FR648706D Expired FR648706A (en) 1927-08-23 1928-02-13 Process for preparing lignin-free cellulose

Country Status (3)

Country Link
DE (1) DE506229C (en)
FR (1) FR648706A (en)
GB (1) GB298333A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435566A (en) * 1944-10-16 1948-02-10 West Virginia Pulp & Paper Co Peroxide bleaching of ground wood
US2516664A (en) * 1944-10-16 1950-07-25 West Virginia Pulp & Paper Co Hypochlorite bleaching of ground wood
US2474034A (en) * 1946-12-04 1949-06-21 Paper Patents Co Bleaching poplar groundwood
US2962413A (en) * 1956-10-19 1960-11-29 Ernest R Hatheway Method of producing cellulosic pulp

Also Published As

Publication number Publication date
GB298333A (en) 1928-10-11
DE506229C (en) 1930-08-30

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