METHOD FOR PREPARING OF ION-EXCHANGE TYPE NANO-LITHIUM MANGANESE OXIDE POWDER ADSORBENT BY GEL PROCESS

摘要

The method comprising stirring a mixture of 1.67 to;: - The present invention in an ion exchange-type nano using the gel method, the lithium compound and the manganese compound solution solution relates to a method for producing a lithium manganese oxide powder sorbent molar ratio 1.33 The step of gelling the mixture was added a solution of tartaric acid or citric acid solution was added dropwise a mixture; Drying the gelled mixture; Heat-treating the dried mixture; And the step of acid treatment for the heat-treated mixture; Ion exchange type nano-containing-provides a process for the preparation of lithium manganese oxide powder adsorbent.; According to the present invention, subsequent to using the gel method by preparing the adsorbent powder of nano-size, it is possible to secure a more lithium adsorbed reactive site to improve the specific surface area and pore volume of the adsorbent powder, the heat treatment and acid treatment the lithium ion exchange method with the step can be selectively produced an effective adsorbent in powdered lithium ion sieve type capable of absorption / desorption with.