GB146182A - Manufacture of tanning agents - Google Patents

Manufacture of tanning agents

Info

Publication number
GB146182A
GB146182A GB17343/20A GB1734320A GB146182A GB 146182 A GB146182 A GB 146182A GB 17343/20 A GB17343/20 A GB 17343/20A GB 1734320 A GB1734320 A GB 1734320A GB 146182 A GB146182 A GB 146182A
Authority
GB
United Kingdom
Prior art keywords
acid
chromate
manufacture
tanning agents
alkali
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
GB17343/20A
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 GB146182A publication Critical patent/GB146182A/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
    • C14C3/18—Chemical tanning by organic agents using polycondensation products or precursors thereof
    • C14C3/20—Chemical tanning by organic agents using polycondensation products or precursors thereof sulfonated
    • 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
    • C14C3/22—Chemical tanning by organic agents using polymerisation products

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

Tanning-agents are prepared by treating acid resin or acid tar from mineral oil refining with sufficient alkali or alkaline earth chromate or bichromate or chromic acid to produce a mixture of oxidized acid resin and chromium salt free from chromate or chromic acid; any free sulphuric acid remaining in the product may be neutralized by alkali or alkaline-earth bases. Reference has been directed by the Comptroller to Specifications 19502/90 and 17346/99.
GB17343/20A 1915-07-07 1920-06-25 Manufacture of tanning agents Expired GB146182A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE146167X 1915-07-07
DE146182X 1918-11-21

Publications (1)

Publication Number Publication Date
GB146182A true GB146182A (en) 1921-12-28

Family

ID=62520017

Family Applications (2)

Application Number Title Priority Date Filing Date
GB17295/20A Expired GB146167A (en) 1915-07-07 1920-06-25 Improved manufacture of tanning agents
GB17343/20A Expired GB146182A (en) 1915-07-07 1920-06-25 Manufacture of tanning agents

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB17295/20A Expired GB146167A (en) 1915-07-07 1920-06-25 Improved manufacture of tanning agents

Country Status (1)

Country Link
GB (2) GB146167A (en)

Families Citing this family (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

Also Published As

Publication number Publication date
GB146167A (en) 1921-12-28

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