FIELD: chemistry.
SUBSTANCE: method of obtaining hydrated rhodium oxide (III) pertains to chemical and metallurgical production of platinum group metals and their compounds. The method involves treatment of a chloride solution of rhodium with an alkali until its concentration in the pulp becomes 1.0-2.0 mol/l. The pulp is subsequently heated to 85±15°C and the precipitate is separated from the master solution. Separation of the precipitate is done by repeated re-pulping of the precipitate in diluted inorganic acid and subsequent filtration.
EFFECT: obtaining a Rh2O3·nH2O precipitate with low content of impurities of chloride ions from a rhodium chloride salt solution.
2 tbl, 2 ex
| Title | Year | Author | Number |
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