降低拜耳法溶出液a_k的途径及实施效果  

Method of Decreasing the α_k Content in the Bayer Digested Liquor and the Applied Result

作　　者：杨权平[1] 詹贤军[1] 

机构地区：[1]中国铝业山西分公司,山西河津043300

出　　处：《轻金属》2005年第4期8-10,共3页Light Metals

摘　　要：中国铝业山西分公司氧化铝生产采用的是混联法,拜耳法主要技术指标溶出液ak与国内同行业相比,有较大的差距。本文分析了我分公司拜耳法溶出液ak高的原因和降低的途径,并对溶出液ak降低后的提产效果进行了分析,对实际生产具有现实指导意义。The conbination process is adopted in the alumina production of Shanxi Branch of CHALCO. The a_k content in the digested liquor is one of the main technical index in the Bayer process, it has greater differences compared to that in the same alumina plant in our country. In this article, the cause of high a_k content in the process and the method to decrease it are introduced, further more,the applied result to increase the production capacity after decrease of a_k in the digested liquor is also analyzied, which are conductive to the actual production.

关 键 词：拜耳法 高压溶出 溶出液ak 循环效率 

分 类 号：TF821[冶金工程—有色金属冶金]