Soil rubidium salt cyclic leaching and content calculation method

The invention provides a soil rubidium salt cyclic leaching method. According to the method, the problem that the leaching rate of rubidium salt is low in the previous one-time leaching process is solved, a leaching mode that process raw water is recycled is utilized, the concentration of the rubidium salt in leachate is several times higher than that of the rubidium salt in one-time leachate, theleachate is convenient to store, the dosage of chemicals in a subsequent purification process can be greatly increased, and the method is more environmentally friendly. 本发明提供的土壤铷盐循环浸出方法，改变了过去一次浸出过程中铷盐浸出率低的问题，利用工艺原水循环使用的浸出的方式，本发明中浸出液铷盐浓度较一次浸出液高出数倍，便于浸出液的存储，可以大大提高后续提纯工艺中化学用品的用量，更加环保。