FIELD: production of refractory metals, namely zirconium by electrolysis of melt salts.
SUBSTANCE: process comprises steps of electrolysis of melt of fluoride-chloride electrolyte containing, mass %: zirconium, 3 - 5, chlorine, 8 - 13; sodium, 2 - 4; cyclically charging to melt potassium fluozirconate, potassium chloride and sodium chloride for sustaining predetermined content of electrolyte; further separation of zirconium powder by hydraulic metallurgy; performing electrolysis at adding to melt magnesium chloride additive in quantity providing mass content of magnesium in electrolyte 0.05 - 0.5%.
EFFECT: improved current yield of zirconium powder at electrolysis, extraction of zirconium from initial salt to powder, lowered specific consumption of DC power.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD TO PRODUCE ZIRCONIUM BY ELECTROLYSIS FROM MELTED SALTS | 2012 |
|
RU2516170C2 |
| METHOD OF PRODUCING ZIRCONIUM THROUGH MOLTEN ELECTROLYTE ELECTROLYSIS (VERSIONS) | 2008 |
|
RU2400568C2 |
| METHOD FOR RECOVERING CHLORINE, FLUORINE FROM ANODE GAS AND WASTE ELECTROLYTE FORMED IN PROCESS FOR ELECTRODEPOSITION OF ZIRCONIUM | 1997 |
|
RU2140465C1 |
| METHOD OF PRODUCING ZIRCONIUM THROUGH MOLTEN ELECTROLYTE ELECTROLYSIS (VERSIONS) | 2016 |
|
RU2654397C2 |
| METHOD OF ALUMINUM PRODUCTION OUT OF NEPHELINE STENITES AND THINNERITES | 1993 |
|
RU2074906C1 |
| METHOD OF EXTRACTING HAFNIUM AND ZIRCONIUM FROM FLUORIDE SECONDARY MATERIAL CONTAINING HAFNIUM AND ZIRCONIUM | 2020 |
|
RU2732259C1 |
| PROCEDURE FOR PRODUCTION OF HAFNIUM BY ELECTROLYSIS OF MELTED SALTS AND INSTALLATION FOR IMPLEMENTATION OF THIS PROCEDURE | 2009 |
|
RU2402643C1 |
| METHOD FOR PRODUCTION OF ALUMINIUM FROM ANORTHOSITES | 1992 |
|
RU2009273C1 |
| METHOD OF PRODUCTION OF METALS BY ELECTROLYSIS OF THE MOLTEN SALTS | 2004 |
|
RU2274680C2 |
| METHOD OF PRODUCING POWDERS AND COATINGS OF REFRACTORY METALS | 0 |
|
SU984689A1 |
