05601721 is referenced by 11 patents and cites 8 patents.

Selenium exists in oil refinery stripped sour water as selenocyanate and can be effectively removed using an acrylic, strong base, anion exchange column or stannous chloride. The acrylic, strong base, anion exchange column can also be employed to remove arsenic, iron, and vanadium from an aqueous fluid.

Title
Method for reducing the selenium concentration in an oil refinery effluent
Application Number
8/236548
Publication Number
5601721
Application Date
April 29, 1994
Publication Date
February 11, 1997
Inventor
Brian J Kelly
Corona
CA, US
Darrel L Gallup
Chino Hills
CA, US
Ronald J Lukasiewicz
Irvine
CA, US
Agent
Shlomo R Frieman
Gregory F Wirzbicki
Assignee
Union Oil Company of California
CA, US
IPC
C02F 1/42
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