FIELD: metallurgy.
SUBSTANCE: method includes heat treatment of industrial product with ammonium chloride followed by isolation of non-ferrous, rare, platinum and noble metals. In addition, the natural mineral pyrolusite is additionally introduced into the charge. The heat treatment for reducing loss of metals with sublimates is carried out at temperature not higher than 320°C for 30-180 min followed by hydrochloric acid leaching and isolation of metals from solution.
EFFECT: reduced losses of extracted metals.
1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PROCESSING SULPHIDE GOLD CONTAINING CONCENTRATES AND ORES | 2015 |
|
RU2607681C1 |
| METHOD OF COMPLEX PROCESSING OF GOLD-CONTAINING SULFIDE ARSENIC CONCENTRATES | 2015 |
|
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| METHOD FOR COMPLEX PROCESSING OF SULPHIDE-OXIDISED COPPER-PORPHYRITIC ORES | 2018 |
|
RU2685621C1 |
| METHOD FOR PRODUCING IRON OXIDE PIGMENT | 2017 |
|
RU2657489C1 |
| METHOD FOR PYRITE CINDER PRE-PROCESSING | 2017 |
|
RU2659505C1 |
| METHOD OF OBTAINING IRON OXIDE PIGMENTS | 2017 |
|
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| METHOD OF RECOVERING PLATINUM METALS FROM PLATINUM-CONTAINING CONCENTRATES | 2000 |
|
RU2169200C1 |
| PRECIOUS METAL RECOVERY METHOD | 2002 |
|
RU2235140C2 |
| PROCESS LINE FOR PRODUCTION OF IRON TRICHLORIDE FROM SULPHUR WASTES | 2014 |
|
RU2599316C2 |
| PLATINUM-CONTAINING CONCENTRATE PROCESSING METHOD | 2000 |
|
RU2169780C1 |
