Chemistry of inorganic compounds – Selenium or tellurium or compound thereof
Patent
1984-06-14
1985-10-01
Doll, John
Chemistry of inorganic compounds
Selenium or tellurium or compound thereof
423 34, 423101, 423140, 75 05A, 75 05AA, 75108, 75117, 75119, 75120, 75121, C01B 1900
Patent
active
045445419
ABSTRACT:
A process is provided for removing hexavalent selenium from an acidic sulfate solution containing at least one metal ion from the group consisting of nickel, cobalt and copper at ambient pressure and at a temperature not exceeding the boiling point of the solution. The solution is treated with an agent from the group consisting of a compound which will produce nascent hydrogen in the solution and finely divided metal from the group consisting of nickel, cobalt and copper resulting from in situ precipitation of the metal in the acid sulfate solution. Thus, following treatment with the compound, the hexavalent selenium is reduced to a form separable from the solution by solid-liquid separation.
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Chou Eddie C.
Huggins Dale K.
Wiegers Ben W.
Wiewiorowski Edward I.
Amax Inc.
Ciomek Michael A.
Doll John
Kalil Eugene J.
Stoll Robert L.
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