FR992905A - Process for preparing tanning substances from black liquors - Google Patents

Process for preparing tanning substances from black liquors

Info

Publication number
FR992905A
FR992905A FR992905DA FR992905A FR 992905 A FR992905 A FR 992905A FR 992905D A FR992905D A FR 992905DA FR 992905 A FR992905 A FR 992905A
Authority
FR
France
Prior art keywords
black liquors
tanning substances
preparing
preparing tanning
substances
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.)
Compagnie de Saint Gobain SA
Original Assignee
Compagnie de Saint Gobain SA
Manufactures des Glaces et Produits Chimiques de Saint Gobain SA
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 Compagnie de Saint Gobain SA, Manufactures des Glaces et Produits Chimiques de Saint Gobain SA filed Critical Compagnie de Saint Gobain SA
Application granted granted Critical
Publication of FR992905A publication Critical patent/FR992905A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00—Tanning; Compositions for tanning
    • C14C3/02—Chemical tanning
    • C14C3/08—Chemical tanning by organic agents
    • C14C3/24—Chemical tanning by organic agents using lignin derivatives, e.g. sulfate liquor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR992905D 1944-09-26 1944-09-26 Process for preparing tanning substances from black liquors Expired FR992905A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR992905T 1944-09-26

Publications (1)

Publication Number Publication Date
FR992905A true FR992905A (en) 1951-10-24

Family

ID=9555200

Family Applications (1)

Application Number Title Priority Date Filing Date
FR992905D Expired FR992905A (en) 1944-09-26 1944-09-26 Process for preparing tanning substances from black liquors

Country Status (1)

Country Link
FR (1) FR992905A (en)

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