FIELD: metallurgy.
SUBSTANCE: method involves simultaneous extraction of platinum and rhenium from acid solutions by introducing to the solution of sulphur-containing reducing agent (sodium thiosulfate). Then, deposit of sulphides and other connections of rhenium and platinum is separated from the solution. At that, sodium thiosulfate is added in the form of water solution by its uniform continuous supply to hot acid solution containing platinum and rhenium at the ratio of masses of reagent and soluble rhenium and platinum of 15 to 23.
EFFECT: reducing the flow of sulphur-containing reagent and increasing the extraction degree of platinum from acid solution to the concentrate owing to changing the procedure of introducing the precipitator reagent to acid solution containing platinum and rhenium.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF CONCENTRATE RECEIVING, CONTAINING RHENIUM AND PLATINUM, FROM ITS CONTAINING ACID LIQUORS | 2007 |
|
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