FR616229A - New process for the manufacture of wood pulp - Google Patents

New process for the manufacture of wood pulp

Info

Publication number
FR616229A
FR616229A FR616229DA FR616229A FR 616229 A FR616229 A FR 616229A FR 616229D A FR616229D A FR 616229DA FR 616229 A FR616229 A FR 616229A
Authority
FR
France
Prior art keywords
manufacture
wood pulp
new process
new
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.)
Raoul Pictet & F Tharaldsen As
Original Assignee
Raoul Pictet & F Tharaldsen As
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 Raoul Pictet & F Tharaldsen As filed Critical Raoul Pictet & F Tharaldsen As
Application granted granted Critical
Publication of FR616229A publication Critical patent/FR616229A/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
FR616229D 1925-05-20 1926-05-15 New process for the manufacture of wood pulp Expired FR616229A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO252344X 1925-05-20

Publications (1)

Publication Number Publication Date
FR616229A true FR616229A (en) 1927-01-29

Family

ID=19905010

Family Applications (1)

Application Number Title Priority Date Filing Date
FR616229D Expired FR616229A (en) 1925-05-20 1926-05-15 New process for the manufacture of wood pulp

Country Status (3)

Country Link
DE (1) DE504667C (en)
FR (1) FR616229A (en)
GB (1) GB252344A (en)

Also Published As

Publication number Publication date
GB252344A (en) 1926-12-09
DE504667C (en) 1930-08-08

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