电石灰在氧化铝生产中用于苛化的研究  

Study on Causticizing of Calcium Carbide Dust in Alumina Production by Bayer Process

作　　者：冉俊生 李民菁 史智慧 郑朝付 刘宏斌 

机构地区：[1]河南未来铝业(集团)有限公司,焦作454172

出　　处：《矿产保护与利用》2010年第3期39-42,共4页Conservation and Utilization of Mineral Resources

摘　　要：进行了电石灰代替工业石灰在拜耳法氧化铝生产苛化工段回收苛性碱的试验研究。结果表明:用电石灰代替石灰在氧化铝生产中苛化,技术上是可行的。以年产100万吨氧化铝计算,每年可节约费用520多万元,而且苛化条件与石灰相似,不需要新增加设备及人员,具有良好的推广价值。Calcium carbide dust instead of lime was used in recovering caustic alkali in alumina production by Bayer process.The study results showed that it was entirely feasible for calcium carbide slag in place of lime for causticizing in alumina production.Based on computational computed the annual output of one million tons of alumina,not only more than 520 million yuan can be saved,but additional equipments and persons do not need.It has good popularization value.

关 键 词：电石灰 苛化 拜耳法氧化铝生产 

分 类 号：TF821[冶金工程—有色金属冶金] TF111.31