FIELD: hydrometallurgy.
SUBSTANCE: invention relates to hydrometallurgy of non-ferrous metals and can be used in processing concentrates, industrial products and solid wastes containing metals. Method of extracting metal ions from cake obtained after soda sintering of a tungsten concentrate involves sulphatization firing and leaching. Sulphating annealing of cake obtained after soda sintering and leaching of tungsten concentrate is carried out by oleum at temperature of 250–300 °C for 4 hours with subsequent neutral, and then acidic leaching of metals 2 n. solution of sulfuric acid at L:S=3:1 and temperature of 80 °C for 30 minutes.
EFFECT: technical result of the invention consists in intensification of leaching process and more complete extraction into solution of metals from materials containing them.
1 cl, 2 dwg, 5 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| EXTRACTION OF FE, MN, NI, CO, CU, AL BY SULPHATIZATION AND HYDROCHLORINATION FROM CAKE OBTAINED AFTER SODA SINTERING AND LEACHING OF TUNGSTEN CONCENTRATE | 2019 |
|
RU2695689C1 |
| EXTRACTION OF Fe, Mn, Ni, Co, Cu, Al FROM CAKE OBTAINED AFTER SODA SINTERING AND LEACHING OF TUNGSTEN CONCENTRATE, BY CALCINATION WITH TABLE SALT AND HYDROCHLORIC ACID LEACHING WITH PEROXIDE | 2019 |
|
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| METHOD OF PROCESSING OF ZINC CAKE | 2016 |
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| METHOD OF EXTRACTION OF IONS OF IRON, ZINC, COPPER AND MANGANESE | 2006 |
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| EXTRACTION OF HEAVY METALS, IRON, GOLD AND SILVER FROM SULPHATE CAKE | 2012 |
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| METHOD OF EXTRACTING METALS FROM POLYMETALLIC RAW MATERIAL WITH REGENERATION OF BASIC (NH) AND ACIDIC (HCl) REACTANTS | 2016 |
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| METHOD FOR SELECTIVE EXTRACTION OF IRON (III) AND MANGANESE (II) FROM AQUEOUS SOLUTIONS | 2019 |
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| METHOD OF PROCESSING OF SULPHIDE CONCENTRATES | 2007 |
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| METHOD FOR SELECTIVE EXTRACTION OF ZINC (II) AND MANGANESE (II) FROM AQUEOUS SOLUTIONS | 2019 |
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| RECOVERY OF MOLYBDENUM FROM AQUEOUS TUNGSTATE SOLUTIONS | 2000 |
|
RU2186864C2 |
