降低碳铵沉淀法生产氧化镧中氯离子含量的研究  

Study on Technology of Decreasing Cl-Content in Producing La_2O_3 by Using NH_4HCO_3 Subsidence Method

作　　者：黄丽[1] 邱小英[1] 简启发[1] 刘南昌[1] 

机构地区：[1]赣州有色冶金研究所,江西赣州341000

出　　处：《江西有色金属》2006年第1期37-40,共4页Jiangxi Nonferrous Metals

摘　　要：为降低碳铵沉淀法生产氧化镧中氯离子含量,在不变换体系的情况下,通过改进沉淀工艺,选择多种洗涤剂进行比较及筛选试验,有效地解决了氧化镧中氯离子含量高的问题,将其应用于镧热还原-炉渣(即镧渣)回收氧化镧产品的生产实践中,获得了理想的效果。In order to decreasing Cl^- content in producing La2O3 by using NH4HCO3 subsidence method, by improving subsidency technology under the circumstances of not changing system, and selecting multiple washing liquid and screening, the problem of high Cl^- content can be resolved. This method can be used to recover La2O3 turnace slay produced in La thermal reduction.

关 键 词：碳铵沉淀 氧化镧 洗涤 氯离子 

分 类 号：TF845[冶金工程—有色金属冶金]