盐酸浸出中低品位胶磷矿中稀土的研究  

Study on Leaching of Rare Earth from Middle-low Grade Collophanite with Hydrochloric Acid

作　　者：赵丽君[1] 聂登攀[1] 何灏[1] 王振杰[1] 薛安[1] 吴素彬[1] 

机构地区：[1]贵州省冶金化工研究所,贵阳550002

出　　处：《有色金属（冶炼部分）》2014年第4期45-47,共3页Nonferrous Metals（Extractive Metallurgy)

基　　金：贵州省科学技术基金项目(黔科合J字[2012]2261)

摘　　要：采用盐酸对贵州织金磷矿进行酸解,研究了盐酸浓度、反应时间、酸料比和温度等对磷矿中稀土浸出率的影响。结果表明,在下述最佳工艺条件下稀土浸出率可达98%以上:浓盐酸(11mol/L)、反应时间120min、酸料比2∶1、温度50℃。Zhijin collophanite from Guizhou province was leached by hydrochloric acid. The effects of hydrochloric acid concentration, time, ratio of acid to collophanite and temperature on leaching rate of rare earth （RE） were studied. The results show that RE leaching rate is 98% above under the optimum conditions including hydrochloric acid concentration of 11 mol/L, reaction time of 120 min, ratio of acid to collophanite of 2 ： 1, and reaction temperature of 50 ℃.

关 键 词：盐酸 磷矿 稀土 浸出率 RARE EARTH (RE) 

分 类 号：TF845[冶金工程—有色金属冶金]