FR1033615A - Improvement in the manufacture of semi-chemical pulp - Google Patents

Improvement in the manufacture of semi-chemical pulp

Info

Publication number
FR1033615A
FR1033615A FR1033615DA FR1033615A FR 1033615 A FR1033615 A FR 1033615A FR 1033615D A FR1033615D A FR 1033615DA FR 1033615 A FR1033615 A FR 1033615A
Authority
FR
France
Prior art keywords
semi
improvement
manufacture
chemical pulp
pulp
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.)
AZIENDA BREVETTI IND
Original Assignee
AZIENDA BREVETTI IND
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 AZIENDA BREVETTI IND filed Critical AZIENDA BREVETTI IND
Application granted granted Critical
Publication of FR1033615A publication Critical patent/FR1033615A/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
    • D21C3/04—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
FR1033615D 1951-01-25 1951-01-25 Improvement in the manufacture of semi-chemical pulp Expired FR1033615A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1033615T 1951-01-25

Publications (1)

Publication Number Publication Date
FR1033615A true FR1033615A (en) 1953-07-13

Family

ID=9584579

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1033615D Expired FR1033615A (en) 1951-01-25 1951-01-25 Improvement in the manufacture of semi-chemical pulp

Country Status (1)

Country Link
FR (1) FR1033615A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034473B (en) * 1954-04-08 1958-07-17 Waldhof Zellstoff Fab Process for the production of bleached semi-pulp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034473B (en) * 1954-04-08 1958-07-17 Waldhof Zellstoff Fab Process for the production of bleached semi-pulp

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