Separating nickel, cobalt and chromium from iron in metallurgica

Details Separating nickel, cobalt and chromium from iron in metallurgica Separating nickel, cobalt and chromium from iron in metallurgica

1975-06-26

1977-08-16

Vertiz, O. R.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

423 53, 423140, 423146, 423150, C25C 106

Patent

active

040424740

ABSTRACT:
A finely divided product containing Ni and Fe is dissolved in a sulfate-containing solvent in at least two stages and in the presence of an alkali metal and an oxidant for preciptating the Fe as alkali jarosite while Ni remains in solution which is subjected to an after-treatment. Similar processes can be used to separate cobalt and/or chromium from products containing either or both of these metals as well as iron.

REFERENCES:
patent: 1503229 (1924-07-01), Clark
patent: 2842436 (1958-07-01), Dasher et al.
patent: 3434947 (1969-03-01), Steintveit
patent: 3493365 (1970-02-01), Pickering et al.
patent: 3682592 (1972-08-01), Kovacs
patent: 3847594 (1974-11-01), Van Der Menlen
World Symposium on Mining and Metallurgy of Lead and Zinc AIME, New York, 1970, vol. 2, pp. 228-231, (Cotterill, Ed.).

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