FIELD: metallurgy of platinum metals, particular, recovery of metals of platinum group from solutions of nickel-cobalt production. SUBSTANCE: solution is preliminarily mixed with ammonium thiocyanate in the amount of 5-10 kg/cu. m. Precipitation is conducted in coiled autoclave with solution heated up to 210 at a rate of 18-20 C/min and moved at speed of 1.1-1.3 m/min. Maintained inside the autoclave are temperature of 210-220 C and pressure of 23-25 gage atm. EFFECT: lower costs of the process with preserved high recovery grade of platinum metals due to use of inexpensive easily available complexing agent in form of ammonium thiocyanate instead of urea and prevented clogging of coiled autoclave with sediments. 1 dwg
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Authors
Dates
1996-08-20—Published
1993-12-10—Filed