METHOD FOR RECOVERY OF SODIUM SULFATE FROM GAS CLEANING SOLUTION OF ELECTROLYTIC ALUMINUM MANUFACTURING

FIELD: non-iron metallurgy, in particular crystallizing of sodium sulfate. ^ SUBSTANCE: sodium sulfate from solution of electrolytic aluminum manufacturing is recovered by saturation of gas cleaning solution with sodium sulfate, cooling of obtained solution with cooler, and precipitate separation. C...

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Hauptverfasser:	RZHECHITSKIJ EH.P, TKACHENKO JU.A, KONDRAT'EV V.V, RZHECHITSKIJ A.EH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMISTRY COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM INORGANIC CHEMISTRY METALLURGY
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Beschreibung
Zusammenfassung:	FIELD: non-iron metallurgy, in particular crystallizing of sodium sulfate. ^ SUBSTANCE: sodium sulfate from solution of electrolytic aluminum manufacturing is recovered by saturation of gas cleaning solution with sodium sulfate, cooling of obtained solution with cooler, and precipitate separation. Cooling of sulfate containing solution to 8-120C is carried out in refrigerator through a wall, and cooling to 0-(-2)0C is carried out by direct contact with cooler. ^ EFFECT: increased refrigerate durability, seduced labor cost, equipment cost, and energy consumption. ^ 8 cl, 1 tbl, 3 ex