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Title: Role of some complexing agents during electrodeposition of tellurium
Authors: Kenawy, I M M
Hafez, M A H
EI-Khouly, A A
Goudah, Y G
Issue Date: Jul-1995
Publisher: NISCAIR-CSIR, India
Abstract: he uses of electrodeposition processes for the production of tellurium as a pure metal from different baths containing tellurous acid with some suitable additives have been investigated. The quantity and quality of the deposited metal are found to be dependent on the type of the baths used. The effects of different parameters such as kind and concentration of acids, current density, temperature, electrode type (platinum and graphite) and metal to complexing agent concentration ratio on the cathodic efficiency and on the quality of deposit have been discussed. The interfering effect of some cations and anions has also been studied. Spectrophotometric, AAS and X-ray analyses revealed the purity of separated deposit to be 99.9%. An analytical application for preconcentration and separation of tellurium from its natural ores and alloys using the proposed electrolytic method is found to be satisfactory.
Page(s): 205-210
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.02(4) [July 1995]

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