摘要
本文研究了以液—液萃取法从离子吸附型稀土矿的(NH_4)_2SO_4浸出液中提取稀土的工艺条件,试验结果表明,对含RE_2O_33g/l的稀土浸出液,以P_(204)(二2-乙基已基磷酸)为萃取剂,以5N盐酸为反萃液最终的富集液可达到130g/l左右,此液经过浓缩蒸发可得到固体氯化稀土结晶。
The experimental results for liquid-liquid extraction show that the content of RE2O3 in last enriched solution can reach 130g/l or so. This solution is evaporated to produce the solid crystal of mischmctal chloride. The experimental conditions are as follows: extractant is D2EHPA (70%), there is 3g/1 of RE2O3 in leaching solution, and the counter solution is 5N HCI.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
1989年第5期476-480,共5页
Journal of University of Science and Technology Beijing
关键词
稀土矿
氯化稀土
液萃取
浸出
rare earth mineral, liquid-liquid extraction, leaching, mischme-tal chloride
