Enhancement of organic phase controlled extraction of copper by activated carbon

Kelekar, NS and Kumar, R and Mukherjee, AK (1988) Enhancement of organic phase controlled extraction of copper by activated carbon. In: Hydrometallurgy, 20 (2). pp. 273-278.

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Abstract

The addition of activated carbon particles (Darco-G, average size 4.3,μm) is shown to enhance the initial rate of extraction of copper in a Lewis cell by a mixture of α- and β-hydroxyoximes, when the rate of extraction is controlled by resistances in the organic phase. It is likely that the copper complex is adsorbed by carbon near the interace and partially released in the bulk. The enhancing effect of carbon vanishes when toluene is used as a diluent instead of heptane, presumably because toluene preferentially adsorbs on its surface.

Item Type:	Journal Article
Publication:	Hydrometallurgy
Publisher:	Elsevier Science
Additional Information:	Copy rights of this article belongs to Elsevier Science.
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	04 Aug 2009 03:11
Last Modified:	19 Sep 2010 05:39
URI:	http://eprints.iisc.ac.in/id/eprint/21964

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