FIELD: process engineering.
SUBSTANCE: invention relates to concentration of pyrite gold-bearing copper, copper-zinc, lead-zinc and other man-made products of nonferrous and noble metals. Method of flotation of sulphide man-made products of nonferrous metals comprises conditioning of ground mix by sulfhydric collectors in alkaline calcareous medium. Xanthate solution in amount of 10% (mole fraction) and carboxymethylcellulose in amount of up to 20 % (mole fraction) ate added as modifiers to solution of dithiophosphate. Pulp is first conditioned with modified dithiophosphate at pH above 8-9 for up to 10 min and, then, with xanthate to float nonferrous metal sulphides and mineral forms of noble metals at relationship between flow rates of modified dithiophosphate and xanthate of 1:2 to 2:1.
EFFECT: lower floatability of pyrite and higher yield of metals.
2 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DRESSING MAN-MADE MINERAL STOCK OF NONFERROUS METALS | 2012 |
|
RU2480290C1 |
| FLOTATION OF SULFUR PYRRHOTITE-PYRITE ORES OF FERROUS AND NONFERROUS METALS | 2012 |
|
RU2499633C1 |
| METHOD FOR FLOTATION SEPARATING MINERALS OF HEAVY METALS | 2016 |
|
RU2623851C1 |
| METHOD OF FLOATATION OF COPPER-ZINC-PYRITE ORE (VERSIONS) | 2009 |
|
RU2433866C2 |
| METHOD OF FLOTATION OF SULPHIDE ORES OF NON-FERROUS METALS | 2008 |
|
RU2379116C1 |
| SELECTIVE EXTRACTION METHOD OF COPPER MINERALS TO CONCENTRATES AT ENRICHMENT OF COPPER-ZINC PYRITE-CONTAINING ORES | 2009 |
|
RU2425720C1 |
| METHOD OF FLOATATION OF COPPER-PYRITE ORES CONTAINING PRECIOUS METALS | 1994 |
|
RU2071388C1 |
| METHOD OF FLOTATION SEPARATION OF SULFIDE COPPER-ZINC-PYRITIC CONCENTRATES, THAT HAVE ZINC SULFIDES ACTIVATED BY COPPER AND CALCIUM CATIONS | 1993 |
|
RU2054971C1 |
| METHOD FOR FLOTATION SEPARATION OF SULPHIDE MINERALS USING VEGETABLE MODIFIER | 2015 |
|
RU2588271C1 |
| METHOD OF FLOTATION SEPARATION OF SULPHIDES COMPRISING NOBLE METALS FROM COMPLEX IRON-CONTAINING ORE AND COMPOSITE MATERIAL TO THIS END | 2008 |
|
RU2393925C1 |
