ES2007122A6 - Improved process for the chrome-tanning of pelts - Google Patents

Improved process for the chrome-tanning of pelts

Info

Publication number
ES2007122A6
ES2007122A6 ES8702911A ES8702911A ES2007122A6 ES 2007122 A6 ES2007122 A6 ES 2007122A6 ES 8702911 A ES8702911 A ES 8702911A ES 8702911 A ES8702911 A ES 8702911A ES 2007122 A6 ES2007122 A6 ES 2007122A6
Authority
ES
Spain
Prior art keywords
chrome
tanning
pelts
salt
improved process
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
ES8702911A
Other languages
Spanish (es)
Inventor
Max May
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.)
Roehm GmbH Darmstadt
Original Assignee
Roehm GmbH Darmstadt
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 Roehm GmbH Darmstadt filed Critical Roehm GmbH Darmstadt
Publication of ES2007122A6 publication Critical patent/ES2007122A6/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
    • C14C3/04—Mineral tanning
    • C14C3/06—Mineral tanning using chromium compounds

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

The invention relates to an improved process for the chrome-tanning of pelts from animal skins and hides, which process is suitable for recycling, including deliming and bating. The process starts with deliming, followed by a bate of recycled, spent chrome liquors without further addition of salt, and the chrome-tanning is then carried out with the smallest possible use of chrome-tanning agent in each case, with the proviso that, in all process steps, masking means are present and, with closed recycling, the salt content of the effluents being minimised by introducing the pelts into the salt-containing depleted residual baths.
ES8702911A 1986-10-23 1987-10-13 Improved process for the chrome-tanning of pelts Expired ES2007122A6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863636002 DE3636002A1 (en) 1986-10-23 1986-10-23 Improved process for the chrome-tanning of pelts

Publications (1)

Publication Number Publication Date
ES2007122A6 true ES2007122A6 (en) 1989-06-01

Family

ID=6312265

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8702911A Expired ES2007122A6 (en) 1986-10-23 1987-10-13 Improved process for the chrome-tanning of pelts

Country Status (5)

Country Link
BR (1) BR8705658A (en)
DE (1) DE3636002A1 (en)
ES (1) ES2007122A6 (en)
IT (1) IT1211414B (en)
ZA (1) ZA877945B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3726796A1 (en) * 1987-08-12 1989-02-23 Bayer Ag METHOD FOR HIGHLY EXHAUSTING CHROME TANNING
FR2721619B1 (en) * 1994-06-22 1996-08-23 Toulouse Inst Nat Polytech Masking product for metallic salts with tanning properties such as chromium salts, and process for tanning skins in an aqueous medium.
WO2012153203A1 (en) * 2011-05-10 2012-11-15 Council Of Scientific & Industrial Research Chrome tanning process for leather making reusing exhaust chrome liquor

Also Published As

Publication number Publication date
ZA877945B (en) 1988-04-26
IT1211414B (en) 1989-10-18
BR8705658A (en) 1988-05-31
DE3636002A1 (en) 1988-04-28
IT8767882A0 (en) 1987-10-22

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