Liquid injecting and collecting model establishing on in-situ leaching the weathered crust elution-deposited rare earth ore

摘要

In-Situ leaching technology is the latest method of leaching weathered crust elution deposited rare earth ore by arranging liquid injecting and collecting liquid system such as lixiviant solution of ammonium sulfate injection hole, ammonium sulfate and rare earth ion chemical reaction on ore surface, the leach liquor was collected from the liquid supply hole, the leach liquor of rare earth was precipitated. However, for the deposit base stunted ionic rare earth mine, the adoption of this method is often caused due to leakage of deposit base and resources of groundwater contamination leaching solution seepage losses. In-Situ leaching method based on the basic principle of weathered crust elution deposited rare earth ore constructed liquid injecting and collecting allocation model. The leakage area can be determined by using the model, thus reduce or even avoid seepage of groundwater pollution and resource loss.