FIELD: metallurgy.
SUBSTANCE: procedure for processing final tailings of galvanic production consists in crumbling, leaching, separation of solution from sedimentation and in extracting heavy non-ferrous metals from produced solution. Also, final tailings are crumbled with mechanic-chemical activation by wet crumbling in form of pulp suspension at pH≤3 and ratio s (solid): l (liquid) = 1:(0.4-1) and temperature 60-90°C.
EFFECT: reduced harmful environmental impact and power expenditures due to elimination of thermal treatment stage at processing final tailings; raised efficiency of extraction of heavy metal compounds.
3 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| PROCESSING METHOD OF SLURRIES OF GALVANIC PRODUCTIONS | 2009 |
|
RU2404270C1 |
| METHOD FOR REDUCING EMISSION INTO AQUATIC MEDIUM OF CHEMICAL ELEMENTS FROM GALVANIC SLUDGE | 2020 |
|
RU2742757C1 |
| METHOD FOR PROCESSING ZINC-CONTAINING GALVANIC SLUDGE TO OBTAIN NANOPARTICLES OF ZINC OXIDE | 2022 |
|
RU2799182C1 |
| METHOD TO PROCESS SLUDGE OF NEUTRALISATION OF ACID MINE WATERS | 2012 |
|
RU2482198C1 |
| METHOD FOR PROCESSING SLURCHEN OF ACID MINE WATER | 2018 |
|
RU2690330C1 |
| METHOD OF COMPLEX PROCESSING OF WASTEWATER GALVANIC PRODUCTION | 2018 |
|
RU2674206C1 |
| PROCESSING METHOD OF SLURRIES OF GALVANIC PRODUCTIONS | 2012 |
|
RU2504589C1 |
| SORBENT, METHOD FOR PREPARATION THEREOF, AND A METHOD FOR SEPARATELY RECOVERING METAL SALTS FROM WASTES | 2004 |
|
RU2256496C1 |
| METHOD FOR CHEMICAL STABILIZATION OF GALVANIC SLUDGES BEING FOR LONG TIME ON STORAGE | 2005 |
|
RU2282598C1 |
| METHOD OF PRODUCING A GYPSUM BINDER FROM WASTES OF METALLURGICAL PRODUCTION | 2020 |
|
RU2745771C1 |
