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Recovery treatment method of electrolytic aluminum ash and refractory material lining waste
The invention discloses a recovery treatment method of electrolytic aluminum ash and a refractory material lining waste; the refractory lining waste is divided into an impermeable insulation waste and a silicon carbide waste; and the method comprises the following steps: (1) the impermeable insulation waste is crushed and levigated to mix with the aluminum ash to press a pellet; (2) vacuum distillation: electrolyte and metal sodium are crystallized on a crystallizer; the remainder part has main components of Al2O3 and SiO2; the silicon carbide waste is distilled at a temperature of 1000-1200 DEG C in vacuum after being crushed; the electrolyte is crystallized on the crystallizer; and the remainder part is a silicon nitride and silicon carbide refractory material. The method is simple in flow; the useful components can be fully recycled; the recovery cost is low; and meanwhile, the environmental pollution is reduced, so that the application prospect is excellent.
Recovery treatment method of electrolytic aluminum ash and refractory material lining waste
The invention discloses a recovery treatment method of electrolytic aluminum ash and a refractory material lining waste; the refractory lining waste is divided into an impermeable insulation waste and a silicon carbide waste; and the method comprises the following steps: (1) the impermeable insulation waste is crushed and levigated to mix with the aluminum ash to press a pellet; (2) vacuum distillation: electrolyte and metal sodium are crystallized on a crystallizer; the remainder part has main components of Al2O3 and SiO2; the silicon carbide waste is distilled at a temperature of 1000-1200 DEG C in vacuum after being crushed; the electrolyte is crystallized on the crystallizer; and the remainder part is a silicon nitride and silicon carbide refractory material. The method is simple in flow; the useful components can be fully recycled; the recovery cost is low; and meanwhile, the environmental pollution is reduced, so that the application prospect is excellent.
Recovery treatment method of electrolytic aluminum ash and refractory material lining waste
FENG NAIXIANG (author) / WANG YAOWU (author)
2015-09-09
Patent
Electronic Resource
English
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