GB146181A - Improved manufacture of tanning agents - Google Patents

Improved manufacture of tanning agents

Info

Publication number
GB146181A
GB146181A GB1734220A GB1734220A GB146181A GB 146181 A GB146181 A GB 146181A GB 1734220 A GB1734220 A GB 1734220A GB 1734220 A GB1734220 A GB 1734220A GB 146181 A GB146181 A GB 146181A
Authority
GB
United Kingdom
Prior art keywords
acid
chromium
aluminium
iron
tar
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
GB1734220A
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.)
GERB und FARBSTOFFWERKE H RENN
Original Assignee
GERB und FARBSTOFFWERKE H RENN
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 GERB und FARBSTOFFWERKE H RENN filed Critical GERB und FARBSTOFFWERKE H RENN
Publication of GB146181A publication Critical patent/GB146181A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Detergent Compositions (AREA)

Abstract

Tanning-agents are prepared by treating acid resin or acid tar from mineral oil refining with monochromates, e.g. of barium, sodium, or potassium, in amount equivalent to the free sulphuric acid present. Or the sulphuric acid present may be neutralized by hydroxides or carbonates of chromium, aluminium, or iron; and, if desired, additional quantities may then be added. Or the acid resin or acid tar is first treated with a monochromate, and then with an hydroxide or carbonate of chromium, aluminium, or iron. Specification 146,167 is referred to. Reference has been directed by the Comptroller to Specifications 19502/90, 8069/13, and 146,167.ALSO:Acid resin or acid tar from mineral oil refining is treated with monochromates, e.g. of barium, sodium, or potassium in amount equivalent to the free sulphuric acid present. Or the acid present may be neutralized with hydroxides or carbonates of chromium, aluminium or iron. Or the acid resin or acid tar is first treated with a monochromate, and then with an hydroxide or carbonate of chromium, aluminium, or iron. Specification 146,167, [Class 2 (iii), Dyes &c.] is referred to. Reference has been directed by the Comptroller to Specifications 19502/90 [Class 2, Acids and salts, Organic &c.], 8069/13, and 146,167, [Class 2 (iii), Dyes &c.].
GB1734220A 1918-11-12 1920-06-25 Improved manufacture of tanning agents Expired GB146181A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE146181X 1918-11-12

Publications (1)

Publication Number Publication Date
GB146181A true GB146181A (en) 1921-11-25

Family

ID=5671189

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1734220A Expired GB146181A (en) 1918-11-12 1920-06-25 Improved manufacture of tanning agents

Country Status (1)

Country Link
GB (1) GB146181A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418528A (en) * 1941-11-21 1947-04-08 Nat Oil Prod Co Chromium complex compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418528A (en) * 1941-11-21 1947-04-08 Nat Oil Prod Co Chromium complex compounds

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