稀土萃取分离过程三相乳化物的研究Ⅰ——无机杂质富集沉淀导致的乳化

Emulsion during Rare Earth Extraction-Separation Process Ⅰ—— Emulsion Caused by Accumulation of Inorganic Impurities

对中钇富铕稀土矿萃取分离过程中产生的三相乳化物进行了物相分离和组成分析,确认第一分离段发生累积性三相物乳化的主要原因是原料中的难溶性固体物质累积,后续各分离段发生累积性三相物乳化的主要原因则是由于氟离子富集后生成了较多稀土氟化物沉淀。

The emulsion caused in the rare earth separation process of middle Y and rich Eu concentrate was studied.The results showed that main source of emulsion in the first separation step was the accumulation of insoluble solid in the concentrate.The emulsion appeared in the following steps was caused by the deposition of rare earth fluoride.