FIELD: metallurgy.
SUBSTANCE: invention relates to hydrometallurgy of noble metals and can be used in processing chloride solutions for extraction and separation of noble metals. Method of extracting and separating noble metals from chloride solutions involves treatment of solutions while heating with sulfite or hydrosulfite of an alkali metal, separation of sediment from solution, repeated treatment of solution with reducing agent, which is used as iron, and separation of cementate from solution.
EFFECT: practically quantitative extraction of noble metals from solutions and separation of the main part of platinum, palladium and gold from rare platinum metals — rhodium, iridium, ruthenium.
3 cl, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PURIFICATION OF PLATINUM-PALLADIUM CHLORIDE SOLUTIONS FROM GOLD, SELENIUM, TELLURIUM, AND IMPURITIES OF BASE METALS | 2021 |
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RU2375476C1 |
| METHOD FOR PURIFICATION OF RHODIUM SOLUTION FROM IMPURITIES | 2022 |
|
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| METHOD OF JOINT SEPARATION OF PLATINUM METAL | 2004 |
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RU2353684C2 |
| METHOD OF SEPARATION OF METALS AT PROCESSING HYDROCHLORIC SOLUTIONS CONTAINING NOBLE METALS, ANTIMONY AND OTHER BASE METALS | 2008 |
|
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| METHOD FOR PROCESSING CONCENTRATES BASED ON BASE ELEMENTS CONTAINING RARE METALS OF THE PLATINUM GROUP | 2021 |
|
RU2773294C1 |
| METHOD OF PROCESSING NOBLE METAL CONCENTRATE | 2000 |
|
RU2180008C2 |
| METHOD OF REPROCESSING IRON OXIDE BASED SEDIMENTS CONTAINING PRECIOUS METALS | 2001 |
|
RU2204620C2 |
| METHOD FOR PROCESSING PRODUCTS CONTAINED RUTHENIUM AND IRIDIUM | 1996 |
|
RU2104320C1 |
| METHOD FOR PROCESSING MATERIALS CONTAINING PRECIOUS METALS AND IRON | 2020 |
|
RU2750735C1 |
