METHOD OF PREPARING ION EXCHANGER FOR ISOLATING CHROMIUM(VI) FROM SOLUTIONS Russian patent published in 1998 - IPC

Abstract RU 2104776 C1

FIELD: waste water treatment. SUBSTANCE: ion exchanger, used largely for treating liquid drainage from electroplating workshops, is prepared by synthesizing mixed hydroxide based on system Mg(OH)₂•Cr(OH)₃. Ion exchanger is distinguished by general formula Mg_xCr_y(OH)_2+y where x=0.50-0.97, and y= 0.03-0.50. Hydroxide is granulated at temperatures from 25 to 120 C. EFFECT: increased ion-exchange capacity. 2 tbl

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RU 2 104 776 C1

Authors

Sokolova M.M.

Vol'Khin V.V.

Dates

1998-02-20—Published

1995-12-26—Filed