method of extracting copper from aqueous solution Russian patent published in 1998 - IPC

Abstract RU 2104315 C1

FIELD: metallurgy. SUBSTANCE: extraction of copper from aqueous solution is performed using, as extract, industrial grease containing: oleic acid 10-12%; triethanolamine, 4.5-6.0%; and motor oil, pH value of solution being within the range 4 to 10 and controlled for no longer than 2 h. Extract-solution mixture is heated to boiling, and boiled for 1-5 min, whereupon predetermined pH value is controlled for 5-10 min. EFFECT: increased extraction degree, reduced cost, and improved safety. 2 cl, 2 dwg, 3 tbl

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RU 2 104 315 C1

Authors

Voropanova L.A.

Velichko L.N.

Kozyrev E.N.

Dates

1998-02-10—Published

1996-05-05—Filed