半风化离子吸附型稀土的浸取实验

针对龙南某矿山的半风化离子型稀土进行浸取试验研究.矿样中全相品位为 0.11 %，其中离子相稀土含量为 0.083 7 %.考察了浸取剂种类，浸取剂浓度，淋洗液固比以及尾水液固比对浸取的影响，其最佳柱浸浸取条件为:HT-13 浓度 2 %，淋洗液固比（指质量比，下同）为 0.4:1，尾液水液固比为0.6:1， 在此条件下稀土离子相浸出率为 98.06 %. 在放大试验中 HT-13 浸出液中稀土离子浓度为1.14 g/L，铝浓度为 10.8 mg/L，铁浓度为 7.8 mg/L，且 HT-13 可以循环使用. 

The leaching experiment of semi weathered ion adsorption type rare earth ore

Leaching experimental research about semi -weathering rare earth ions in a mine of Longnan was studied. The whole-phase grade of the ore was 0.11 % ,and the ion phase was 0.083 7 %. The influences of the leaching reagent types, reagent concentration, liquid-solid ratio of the leaching and liquid-solid ratio of tail water on leaching were investigated. The optimal leaching conditions are a s follows: when HT-13 concentration is 2 %, liquid-solid ratio of the leaching liquid is 0.4:1, and the liquid-solid ratio of tail water is 0.6:1, the rare earth ions leaching rate is 98.06 % .In the extensive test, rare earth ions concentration of HT -13 leaching liquid concentration is 1.14 g/L, aluminum concentration is 10.8 g/L, iron concentration is 7.8 g/L, and HT-13 can be recycled.