Kulandaisamy, S. and Prabhakarrethinaraj, J. and Chockalingam, S.C. and Visvanathan, S. and Venkateswaran, K.V. and Ramachandran, P. and Nandakumar, V. (1997) Performance of catalytically activated anodes in the electrowinning of metals. Journal of Applied Electrochemistry, 27 (05). pp. 579-583. ISSN 0021-891X

PDF Restricted to Registered users only Download (6Mb) | Request a copy

Abstract

The performance of titanium anodes coated with oxides of Ir-Co or Ir-Ta has been compared using long term polarization techniques under simulated electrowinning conditions. Possible reasons for anode failure are explained from SEM and XRD. Potentiodynamic studies in 2 M H2SO4 indicate that approximately 450 mV reduction in anode potential can be achieved with Ti/(Ir-Co) as against lead. This anode is also suitable in chloride contaminated sulfate electrolyte. The anode potential measurements in different electrowinning electrolytes indicate that a potential saving up to 370-420 mV can be achieved. It is interesting to note that mixed electrolyte containing sulfate and chloride behaves similarly to pure chloride electrolyte with respect to anode potential

Item Type:	Article
Subjects:	Electrohydrometallurgy
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	20 Jul 2012 11:48
Last Modified:	20 Jul 2012 11:48
URI:	http://cecri.csircentral.net/id/eprint/2848

Actions (login required)

View Item