Removal of selenium (IV) and (VI) from acidic copper sulphate so

Details Removal of selenium (IV) and (VI) from acidic copper sulphate so Removal of selenium (IV) and (VI) from acidic copper sulphate so

1980-10-24

1982-05-18

Hearn, Brian E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423509, 423557, 423 43, C01B 1904

Patent

active

043305083

ABSTRACT:
A process for removing dissolved selenium IV values from an acidic aqueous copper sulphate solution includes passing the solution through a tubular member in a plug flow manner and injecting sulphur dioxide or a sulphite solution into the solution as it enters the tubular member. When the sulphate solution also contains dissolved selenium (VI) values, the ratio of dissolved selenium (IV) values to dissolved selenium (VI) values is preferably at least 3 to 1.

REFERENCES:
patent: 3436177 (1969-04-01), Spedden
patent: 3730700 (1973-05-01), Groenveld
patent: 3914375 (1975-10-01), Clark
Perry, Chemical Engineer's Handbook, 5th Ed., McGraw-Hill, N.Y., (1973), pp. 4-20 to 4-25, 4-27, 4-28.
Griskey, Chemical Engineering for Chemists, ACS, Washington, D.C., (1979), pp. 3, 5-8.
Zingaro, Selenium, Van Nostrand Reinhold, NY, (1974), pp. 56-60.

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