FIELD: metallurgy.
SUBSTANCE: invention relates to the method due to which the valuable metals and possible precious metals are extracted from the mixed matte obtained in the melting furnace. Valuable metals in the material obtained in the melting furnace are leached by the sour solution containing sulphate and chloride from which each metal is extracted using a solvent. When leaching all precious metals contained in this material remain in non-dissolved form in the residue after leaching from which they are leached by the solution containing hydrochloric acid in oxidising conditions and they separated from solution by means of solvent extraction.
EFFECT: higher adjustability of the sulphur and iron content at extraction of valuable and precious metals.
14 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| NICKEL AND/OR COBALT RECOVERY METHOD (OPTIONS) | 1996 |
|
RU2174562C2 |
| NICKEL MATTE PROCESSING METHOD | 2011 |
|
RU2485190C1 |
| PROCEDURE FOR LEACHING VALUABLE METALS OUT OF ORE AT PRESENCE OF HYDROCHLORIC ACID | 2005 |
|
RU2423534C2 |
| PROCEDURE FOR PROCESSING RESIDUES OF CARBONYL NICKEL SYNTHESIS | 2009 |
|
RU2398030C1 |
| METHOD AND SYSTEM FOR COMPLETE REPROCESSING OF COPPER-NICKEL SULPHIDE ORE | 2018 |
|
RU2741429C1 |
| PROCEDURE FOR LEACHING PRECIOUS METALS FROM ORE AT PRESENCE OF HYDROCHLORIC ACID | 2005 |
|
RU2395594C2 |
| METHOD OF PROCESSING COPPER-NICKEL SULPHIDE MATERIALS | 2019 |
|
RU2706400C1 |
| METHOD OF HYDROMETALLURGICAL RECOVERY OF NICKEL FROM NICKEL MATTE OF TWO TYPES | 1996 |
|
RU2149195C1 |
| METHOD OF REMOVING SULFUR IN NICKEL LEACHING PROCESS | 1999 |
|
RU2226558C2 |
| PROCEDURE FOR LEACHING AT PRESENCE OF HYDROCHLORIC ACID FOR REGENERATION OF VALUABLE METAL FROM ORE | 2006 |
|
RU2424332C2 |
