ES2042400A1 - Treatment of tanning by=products for e.g. chromium@ removal - Google Patents

Treatment of tanning by=products for e.g. chromium@ removal

Info

Publication number
ES2042400A1
ES2042400A1 ES9200499A ES9200499A ES2042400A1 ES 2042400 A1 ES2042400 A1 ES 2042400A1 ES 9200499 A ES9200499 A ES 9200499A ES 9200499 A ES9200499 A ES 9200499A ES 2042400 A1 ES2042400 A1 ES 2042400A1
Authority
ES
Spain
Prior art keywords
tanning
chromium
removal
products
treatment
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.)
Granted
Application number
ES9200499A
Other languages
Spanish (es)
Other versions
ES2042400B1 (en
Inventor
Jaime Cot
Alberto Manich
Carmen Aramon
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.)
Consejo Superior de Investigaciones Cientificas CSIC
Original Assignee
Consejo Superior de Investigaciones Cientificas CSIC
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 Consejo Superior de Investigaciones Cientificas CSIC filed Critical Consejo Superior de Investigaciones Cientificas CSIC
Priority to ES9200499A priority Critical patent/ES2042400B1/en
Publication of ES2042400A1 publication Critical patent/ES2042400A1/en
Application granted granted Critical
Publication of ES2042400B1 publication Critical patent/ES2042400B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

Landscapes

  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The material is given an alkaline impregnation before oxidn. with hydrogen peroxide which oxidises Cr(III) to Cr(VI) and liberates if from the organic matrix. Alternatively, impregnation is with an acid soln. of hydrogen peroxide.
ES9200499A 1992-03-05 1992-03-05 PROCEDURE FOR THE INTEGRAL TREATMENT OF BY-PRODUCTS OF THE TANNING INDUSTRY THROUGH THE CONTROLLED ATTACK WITH HYDROGEN PEROXIDE. Expired - Fee Related ES2042400B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9200499A ES2042400B1 (en) 1992-03-05 1992-03-05 PROCEDURE FOR THE INTEGRAL TREATMENT OF BY-PRODUCTS OF THE TANNING INDUSTRY THROUGH THE CONTROLLED ATTACK WITH HYDROGEN PEROXIDE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9200499A ES2042400B1 (en) 1992-03-05 1992-03-05 PROCEDURE FOR THE INTEGRAL TREATMENT OF BY-PRODUCTS OF THE TANNING INDUSTRY THROUGH THE CONTROLLED ATTACK WITH HYDROGEN PEROXIDE.

Publications (2)

Publication Number Publication Date
ES2042400A1 true ES2042400A1 (en) 1993-12-01
ES2042400B1 ES2042400B1 (en) 1994-08-01

Family

ID=8276313

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9200499A Expired - Fee Related ES2042400B1 (en) 1992-03-05 1992-03-05 PROCEDURE FOR THE INTEGRAL TREATMENT OF BY-PRODUCTS OF THE TANNING INDUSTRY THROUGH THE CONTROLLED ATTACK WITH HYDROGEN PEROXIDE.

Country Status (1)

Country Link
ES (1) ES2042400B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009000962A1 (en) * 2007-06-25 2008-12-31 Consejo Superior De Investigaciones Científicas Method for recycling of chrome and bioproducts from fur waste, installation for performing same and products obtained therefrom

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59179600A (en) * 1983-03-28 1984-10-12 和歌山県 Removal of chromium from chromium-tanned leather chips
ES8601312A1 (en) * 1984-12-18 1985-11-01 Consejo Superior Investigacion Curing of chromated tanning products by hydrogen peroxide

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59179600A (en) * 1983-03-28 1984-10-12 和歌山県 Removal of chromium from chromium-tanned leather chips
ES8601312A1 (en) * 1984-12-18 1985-11-01 Consejo Superior Investigacion Curing of chromated tanning products by hydrogen peroxide

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, Vol. 102, 1985, Columbia, Ohio, US; WAKAYAMA PREFECTURE: "Removal of chromium from chrome leather shavings", pßg. 126; col. 1, resumen n‘ 26833; & JP-A-59179600 (WAKAYAMA PREFECTURE), 12-Octubre-1984. *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009000962A1 (en) * 2007-06-25 2008-12-31 Consejo Superior De Investigaciones Científicas Method for recycling of chrome and bioproducts from fur waste, installation for performing same and products obtained therefrom
ES2310483A1 (en) * 2007-06-25 2009-01-01 Consejo Superior De Investigaciones Cientificas Method for recycling of chrome and bioproducts from fur waste, installation for performing same and products obtained therefrom

Also Published As

Publication number Publication date
ES2042400B1 (en) 1994-08-01

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Legal Events

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Effective date: 20180806