Process for recovering noble metals from solutions deriving from

Details Process for recovering noble metals from solutions deriving from Process for recovering noble metals from solutions deriving from

1992-09-04

1995-02-28

Miller, Edward A.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or purifying free metal powder or producing or...

75371, 75393, 75720, 423 2, C22B 1100

Patent

active

053933222

ABSTRACT:
A process for recovering palladium, rhodium and ruthenium from aqueous solutions deriving from the treatment of nuclear fuels and containing also iron and nickel, by reducing carbonylation with carbon monoxide at a pressure up to 1 atmosphere in a nitric acid solution at a pH of between 2 and 4 and at a temperature of between room and 100.degree. C. and reaction times of from 6 to 100 hours.

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