针对攀西稀土矿黑色风化矿泥氯化铵焙烧得到的焙砂 ,为了提高水浸过程中稀土浓度 ,减少非稀土杂质相对含量以便于进一步回收稀土产品 ,本研究对其氯化焙砂进行了柱浸试验研究 ,探索了浸取剂 ,浸取酸度 ,柱径比对浸出液稀土浓度的影响 ,通过与加热搅拌浸取比较 ,得到结果如下 :柱浸稀土浓度能由原来搅拌浸出的4.3g/L提高到 44.8g/L ,稀土浸取率达 93.43% ,非稀土杂质 Al、Fe、Ca相对于稀土的含量分别为 6.5%、3.4%、6.1 %。 In order to improve the concentration of rare earth in the process of flooding and reduce the relative content of non-rare earth impurities in order to facilitate the further recovery of rare earth products, aiming at the roasted calcine obtained by roasting the black weathered slime and ammonium chloride in Panxi rare earth mine, The effects of leaching agent, leaching acidity and column diameter ratio on the concentration of rare earth in leachate were investigated. The results were as follows: The concentration of rare earth in column leaching could be changed from 4.3 g / L to 44.8g / L, the leaching rate of rare earth reaches 93.43%, and the content of non-rare earth Al, Fe and Ca relative to rare earth is 6.5%, 3.4% and 6.1% respectively.