Details of Grant 

EPSRC Reference:	GR/L96516/01
Title:	RECOVERY, ENCAPSULATION AND REUSE OF CHROMIUM FROM WASTE GENERATED BY TANNING INDUSTRY
Principal Investigator:	Berry, Professor FJ
Other Investigators:	Smart, Dr L
Researcher Co-Investigators:
Project Partners:	British Ceramic Research Ltd Pre Nexus Migration
Department:	Chemistry and Analytical Sciences
Organisation:	Open University
Scheme:	Standard Research (Pre-FEC)
Starts:	01 October 1998	Ends:	30 September 2000	Value (£):	85,907
EPSRC Research Topic Classifications:	Waste Minimisation
EPSRC Industrial Sector Classifications:	No relevance to Underpinning Sectors
Related Grants:
Panel History:
Summary on Grant Application Form
Ninety percent of the leather in this country (and worldwide) is tanned used chromium sulphate. The chromium salts left in the spent tanning baths are precipitated using alkali and filter-pressed into and oxide cake which is disposed in landfill sites. In addition, after tanning, the hides are shaved to approximately fifty percent of their original thickness and the shavings also sent for landfill. We propose too recover the chromium form these tow sources and incorporate it into an NZP-type structure with other metals, in order to develop a new range of ceramic pigments. We propose to examine the leach-resistance of Cr from these molecules with a view to their use as colorants in the ceramics, plastics and construction industries.
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