METHOD OF ELECTROPLATING PRODUCTION WASTE ACID SOLUTION UTILIZATION Russian patent published in 1996 - IPC

Abstract RU 2069240 C1

FIELD: processing of electroplating production waste acid industrial solutions. SUBSTANCE: method allows to remove non-ferrous and heavy metals ions rather fully from processing solutions and in the case to utilize solid sediments as pigments. It provides, that electroplating production waste acid solutions are mixed with taken from degreasing bath waste solution alkaline agent bearing phosphateions in stoichiometric ratio to cations of removed metals, with pH = 5.5 - 8.0. Filtrate is returned in production, sediment is used as pigment. EFFECT: method allows to remove non-ferrous and heavy metals ions from processing solutions. 5 cl

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RU 2 069 240 C1

Authors

Rosljakova Nina Grigor'Evna

Rosljakov Rostislav Olegovich

Dates

1996-11-20Published

1992-04-20Filed