FIELD: hydrometallurgy; extraction of palladium.
SUBSTANCE: method includes the following stages: (1) mixing the palladium-containing material with nitric acid and an alkali metal ion-containing catalyst to obtain a mixed liquid, separating the residue after heating and reacting to obtain a palladium-containing leaching solution, (2) separating and extracting the palladium-containing leaching solution obtained in step (1), to obtain metallic palladium or palladium-containing products, while the solution remaining after separation is reused in stage (1).
EFFECT: reducing the time of extraction of palladium, no secondary pollution, compliance with the requirements of environmental protection.
9 cl, 1 tbl, 11 ex
| Title | Year | Author | Number |
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