FIELD: nonferrous metallurgy; methods of purification of zinc sulfate solutions.
SUBSTANCE: the invention is pertaining to the field of nonferrous metallurgy, in particular, to the method of purification of zinc sulfate solutions from impurities and may be used at purification of the zinc sulfate solutions from impurities. Purification of the indicated solutions is exercised by the zinc powder cementation of cobalt and other impurities with the dosing additions of antimony and at the presence in the solution of copper. At that the solution is additionally introduced with lead sulfate in the amount in 4-8 times exceeding the concentration (in mg/l) of cobalt in the solution being subjected to the purification.
EFFECT: the invention ensures purification of zinc sulfate solutions.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF CLEANING SULFATE ZINC SOLUTIONS FROM ADMIXTURES | 2004 |
|
RU2282671C2 |
| METHOD OF REFINING SULFATE ZINC SOLUTIONS TO REMOVE IMPURITIES | 2003 |
|
RU2238993C1 |
| METHOD OF PRODUCING ZINC POWDER FROM ZINC-CONTAINING WASTES | 2020 |
|
RU2743567C1 |
| METHOD OR REMOVING IMPURITIES FROM ZINC SULFATE SOLUTIONS | 2000 |
|
RU2186131C2 |
| METHOD OF CLEANING SULFATE ZINC SOLUTIONS FROM ADMIXTURES | 2003 |
|
RU2233893C1 |
| METHOD OF PURIFICATION OF ZINC SULFATE SOLUTIONS FROM IMPURITIES | 2000 |
|
RU2172351C1 |
| METHOD FOR PURIFICATION OF ZINC SOLUTION FROM IMPURITIES | 0 |
|
SU1724710A1 |
| 0 |
|
SU1777065A1 | |
| METHOD OF CADMIUM RECOVERY FROM ARSENIC-CONTAINING COPPER CADMIUM CAKE OF ZINC-ELECTROLYTIC PRODUCTION | 0 |
|
SU764618A3 |
| METHOD OF CONTINUOUS TWO-STEP PURIFICATION OF ZINC SOLUTIONS FROM IMPURITIES | 0 |
|
SU876760A1 |
