Recovery of selenium

Details Recovery of selenium Recovery of selenium

1978-02-16

1979-07-31

Thomas, Earl C.

Chemistry of inorganic compounds

Selenium or tellurium or compound thereof

Elemental selenium or tellurium

423 22, 423 41, 75 99, C01B 1900

Patent

active

041630467

ABSTRACT:
A hydrometallurgical process for treating copper refinery anode slimes containing selenium, lead and precious metals in which a selenium product of better than 99.7% purity can be produced and the final residue is suitable for smelting to produce anodes for silver refining.

REFERENCES:
patent: 2084394 (1937-06-01), Heberlein
patent: 2981603 (1961-04-01), Towiner
patent: 2990248 (1961-06-01), Vaaler
patent: 3127244 (1964-03-01), Elkin et al.
patent: 3419355 (1968-12-01), Van Stein
Morrison, "Recovery & Separation of Selenium & Tellurium by Pressure Leaching of Copper Refinery Slime," Unit Processes in Hydrometallurgy, Met. Soc. Cnf. 24, pp.227-249 (1963.
Jennings et al., "A Hydrometallurgical Method of Recovering Selenium & Tellurium Iron Copper Refinery Slimes," Papers presented at AIME Annual Meeting of Feb. 25-29, 1968.

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