低苛性比溶出在拜耳法氧化铝生产中的应用  

Application of Lower Caustic Molecular Ratio Digestion in Bayer Process

作　　者：郑朝付 李民菁 史智慧 王志勇 

机构地区：[1]河南未来铝业(集团)有限公司研发中心,河南焦作454171

出　　处：《矿产保护与利用》2009年第3期37-40,共4页Conservation and Utilization of Mineral Resources

摘　　要：铝土矿拜耳法生产氧化铝中,低苛性比溶出、种分母液参与稀释的实践增加了一条种分分解去稀释的种分母液流程,解决了低苛性比溶出技术应用的关键问题,它的应用使低苛性比溶出技术的应用成为现实。种分母液参与稀释减少去蒸发的种分母液量,节约了能耗,降低了氧化铝生产成本,对我国的管道化拜耳法生产氧化铝具有一定的现实意义。In Bayer process with bauxite, lower caustic moecular ratio digestion technology application was made possible by dilution of digesting pulp with seeded precipitation spent liquors. Due to dilution of digesting pulp with seeded precipitation spent liquors, the seeded precipitation spent liquors evaporated were decreased and energy consumption and production cost reduced. The process improvement in Bayer process contributed to the existing alumina production practices.

关 键 词：拜耳法氧化铝生产 种分母液 稀释 低苛性比 效率 节能 

分 类 号：TF821[冶金工程—有色金属冶金]