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

摘要

The present invention using the gel-type ion exchange method of the nano-powder for producing a lithium manganese oxide adsorbent relates to a method, a lithium compound and the manganese compound solution 1.33 molar solution comprising: stirring a mixture in 1.67; Comprising gelling a mixture of tartaric acid solution or citric acid solution was added to the stirred mixture; Drying the gelled mixture; Heat treating the dried mixture; The acid treatment step and that the heat-treated mixture; Ion exchange comprises a nano-provides a process for the preparation of lithium manganese oxide powder sorbent ; According to the present invention, by preparing the adsorbent powder of nano size using gel method, a powder of the adsorbent specific surface area, and it is possible to secure the number of digits than lithium adsorption reaction to improve the pore volume, the heat treatment and the intake into the lithium ion exchange method with the subsequent steps of the acid treatment selectively / desorption of the ion to be effective powder body type that can it is possible to manufacture a lithium-absorbent.