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Effects of tetraalkylammonium compounds during zinc electrowinning from acidic sulphate solutions

Tripathy, B.C., Das, S.C., Singh, P. and Hefter, G. (1998) Effects of tetraalkylammonium compounds during zinc electrowinning from acidic sulphate solutions. Bulletin of Electrochemistry, 14 (11). pp. 436-438.

Abstract

In the present study the effects of organic additives like triethylbenzylammonium chloride (TEBACL), cetyltrimethylammonium bromide (CTABr) and tetrabutylammonium bromide (TBABr) on zinc electrowinning from acidic sulphate solutions have been observed. The results were compared with that of glue which is also a tetraalkylammonium compound. It is found that TEBACl and CTABr are better leveling agents and are comparable to glue with respect to current efficiency, power consumption, polarisation behaviour and the crystallographic orientations and surface morphologies of the zinc deposits. Voltammetric studies indicate that polarisation for zinc electrodeposition decreased in the order CTABr > glue > TBABr > TEBACL.

Publication Type: Journal Article
Murdoch Affiliation: School of Chemical and Mathematical Science
Publisher: Scientific Publishers
URI: http://researchrepository.murdoch.edu.au/id/eprint/1219
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