FIELD: non-ferrous metallurgy, namely magnesium production by electrolysis of melt salts, particularly processing of waste salts generated at preparation of chlorine-magnesium raw material for electrolysis.
SUBSTANCE: method comprises steps of disintegrating initial raw material; opening of waste material by interaction with water; dividing material by phases; separating target products; drying deposit for producing magnesium oxide and evaporating for producing concentrated solution of metal chlorides. Before opening waste materials treating them by means of flue gases in fluidized-bed furnace at temperature of fluidized bed 300 -600°C.
EFFECT: increased yield of magnesium oxide from waste materials.
1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR REPROCESSING SALT WASTE OF MAGNESIUM PRODUCTION | 2005 |
|
RU2299917C1 |
| METHOD OF PROCESSING OF MAGNESIUM PRODUCTION SALINE WASTES | 2004 |
|
RU2261926C1 |
| PROCEDURE FOR PRODUCTION OF MAGNESIUM AND CHLORINE AND PROCESS LINE FOR IMPLEMENTATION OF THIS PROCEDURE | 2008 |
|
RU2389813C1 |
| METHOD OF PROCESSING CARNALLITE DUST FROM CYCLONS OF FLUID-BED FURNACE | 2008 |
|
RU2370440C1 |
| METHOD OF PROCESSING CARNALLITE DUST FROM FLUIDISED BED FURNACE CYCLONES | 2009 |
|
RU2395456C1 |
| METHOD OF CARNALLITE DUST HANDLING FROM FLUID-BED FURNACE SCRUBBER | 2006 |
|
RU2333153C1 |
| PROCEDURE FOR PREPARING CARNALLITE RAW MATERIAL TO ELECTROLYTIC PRODUCTION OF MAGNESIUM AND CHLORINE | 2009 |
|
RU2399588C1 |
| METHOD OF OBTAINING POTASSIUM OXIDE-MAGNESIUM FERTILIZER | 0 |
|
SU1571043A1 |
| METHOD OF PROCESSING CARNALLITE DUST FORMED AT DEHYDRATION OF MAGNESIUM-CHLORIDE MATERIAL | 2005 |
|
RU2299178C1 |
| METHOD OF PREPARATION OF CHLORINE-MAGNESIUM RAW MATERIAL FOR PRODUCTION OF MAGNESIUM BY ELECTROLYSIS OF MELTED SALTS | 2008 |
|
RU2370441C1 |
