Patent ID: 8926874
Filing Date: 2015-01-06
Classification: B01J

Abstract:
1. A method for preparing a porous manganese oxide-based lithium adsorbent, the method comprising the steps of: preparing a lithium-manganese oxide precursor molded body by preparing a mixture by adding an additive comprising at least one selected from the group consisting of carbon powder, carbon nanotubes (CNT), polyethylene (PE), and polypropylene (PP) to a lithium-manganese oxide precursor reactant, adding water glass to the mixture, and heat-treating the resulting mixture, wherein the water glass is added in an amount of 10 to 60 parts by weight with respect to 100 parts by weight of the mixture; and acid-treating the lithium-manganese oxide precursor molded body, wherein in the heat treatment, pores are formed in the lithium-manganese oxide precursor molded body by gas generated by decomposition of the lithium-manganese oxide precursor reactant or the water glass.