Ionic rare earth ore is one of the important types of rare earth mineral resources in China,which has the characteristics of continuous banding distribution,and has a good prerequisite for in-situ leaching,and the test shows that the leaching efficiency of ionic rare earth ore is controlled by the type and concentration of leaching agent,the solid ratio of leaching solution,and the height of the leaching ore layer.At the same time,it was concluded that 1.5%concentration of ammonium sulfate was used as the leaching agent for the ore in the study area,and the leaching effect was the best under the conditions of 1.2m height and 0.6L/kg of leaching solution-solid ratio.
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