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本文对广西贵港高铁铝土矿的综合利用进行了研究。研究结果表明,采用先铰后铝的方案,即先采用火法,还原回收铁,达到铁铝分离的目的,同时生产出自粉性能良好酸钙炉渣。使用该法,铁的实收率达98％以上,氧化铝实收率达85％以上,铝酸钙炉渣经浸出后得到的浸出渣可用于生产水泥,稀散金属钒和镓也能得到有效回收。文章还对以贵港高铁三水铝石型铝土矿生产供高炉冶炼用的超高碱度烧结矿进行了探讨;对铝酸钙炉渣的浸出性能进行了研究;文章指出铝酸钙炉渣经浸出后得到的铝酸钠溶液经常压搅拌脱硅后,用碳酸化分解方法可以获得合格的氩氧化铝。
In this paper, the comprehensive utilization of high-speed rail bauxite in Guangxi Guigang was studied. The results show that the first re-use of aluminum after the program, that is, the use of fire method, the reduction of recovered iron, to achieve the purpose of separation of iron and aluminum, while producing good performance from the powder calcium carbonate slag. With this method, the actual recovery rate of iron is over 98% and the alumina recovery rate is above 85%. The leached slag obtained after the leaching of calcium aluminate slag can be used to produce cement, and the vanadium and gallium can be effectively recovered . The paper also discussed the ultra-high alkalinity sinter produced by the Guigang bauxite in Guigang for the blast furnace smelting. The leaching performance of the calcium aluminate slag was also studied. The article pointed out that the leaching of calcium aluminate slag After the resulting sodium aluminate solution was stirred at ordinary pressure desilication, carbonation decomposition method can be qualified aluminum hydroxide.