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本发明是关于在高温高压下用苛性碱溶液溶出铝土矿中的铝成分,循环使用分离析出晶体氢氧化铝后的苛性碱成分,除去循环溶液中的有机物及减少其有害作用的方法。传统方法是在铝土矿或矾土页岩铝土矿中
The present invention relates to a method for dissolving an aluminum component in a bauxite by caustic solution under high temperature and high pressure, recycling a caustic component after separating and precipitating crystalline aluminum hydroxide, removing organic substances in a circulating solution and reducing the detrimental effect thereof. The traditional method is in bauxite or alumina shale bauxite