METHOD OF EXTRACTION OF LEAD FROM AQUEOUS SOLUTIONS Russian patent published in 1999 - IPC

Abstract RU 2134728 C1

FIELD: nonferrous and ferrous metallurgy. SUBSTANCE: oleic acid/triethanolamine (10-12 and 4.5-6.0 wt %, respectively) mixture is used as extractant effective within pH range 4-8, optimal pH value being continuously controlled for no longer than 1 hr. For extraction, special-kind grease containing inert diluent (the rest of extractant) is also useful. EFFECT: reduced cost of operation.

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RU 2 134 728 C1

Authors

Voropanova L.A.

Velichko L.N.

Dates

1999-08-20—Published

1998-03-10—Filed