Method for extracting rubidium salt from soil by wet method

The invention provides a method for extracting rubidium salt from soil by a wet method, which fills the blank of extracting rubidium salt from soil at home and abroad in the field, has trans-age significance, is more convenient and faster than extracting rubidium salt from ore and exploiting soil, is lower in production cost and pollution, and has good popularization value. The method comprises the following steps: S1, mixing soil, water and a displacer in proportion to form mixed slurry; S2, obtaining a soil solid rich in the displacer from the mixed slurry; S3, performing reduction treatment on the soil solid obtained in the S2, and obtaining a solid rich in rubidium salt; S4, performing liquid immersion on the solid rich in rubidium salt obtained in the S3; S5, filtering the solution in the step S4 to obtain a rubidium salt solution; and S6, extracting the rubidium salt solution to obtain solid rubidium salt. 本发明提供了一种土壤湿法提取铷盐的方法，填补了国内外土壤提取铷盐的本领域的空白，具有跨时代的意义，相比矿石中提取铷盐，土壤的开采相比矿石的开采和利用更为便捷，生产成本低，污染也更低，具有良好的推广