Method for producing electrolytic high purity lead using large-s

Details Method for producing electrolytic high purity lead using large-s Method for producing electrolytic high purity lead using large-s

1975-01-29

1976-06-01

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204293, C25C 118, C25B 1104

Patent

active

039606813

ABSTRACT:
Betts process for electrolytically refining lead from crude lead containing bismuth is improved by the use of crude lead anodes containing as impurities 0.8 to 1.3 % by weight of antimony, 0.6 % by weight or less of bismuth, 0.1 % by weight or less of copper and 0.05 % by weight or less of tin, the ratio of the sum of the contents of antimony and arsenic to the content of bismuth being 2.0 or more, whereby producing electrolytically deposited lead which is feasible for being refined into a purity of 99.999 % or more when being subjected to the Harris process. The Betts process can be effected in a large-sized electrolytic cel containing corresponding electrodes by the use of high purity lead cathodes having at the centers many wrinkles capable of absorbing residual strain.

REFERENCES:
electrochem. Eng., C. L. Mantell, 4th Ed., 1960, pp. 188-192.

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