发明名称 |
Porous Manganese Oxide Absorbent for Lithium Having Spinel Type Structure and a Method of Manufacturing the Same |
摘要 |
The present invention relates to a porous manganese oxide-based lithium absorbent and a method for preparing the same. The method includes the steps of preparing a mixture by mixing a reactant for the synthesis of a lithium-manganese oxide precursor powder with an inorganic binder, molding the mixture, preparing a porous lithium-manganese oxide precursor molded body by heat-treating the molded mixture, and acid-treating the porous lithium-manganese oxide precursor molded body such that lithium ions of the porous lithium-manganese oxide precursor are exchanged with hydrogen ions, wherein pores are formed in the lithium-manganese oxide precursor molded body by gas generated in the heat treatment. The porous manganese oxide-based lithium adsorbent according to the present invention is easy to handle and has many more adsorption reaction sites compared to existing molded adsorbents, thus providing high lithium adsorption efficiency. |
申请公布号 |
US2014210122(A1) |
申请公布日期 |
2014.07.31 |
申请号 |
US201213640085 |
申请日期 |
2012.06.26 |
申请人 |
Chung Kang-Sup;Ryu Tae Gong;Kim Byoung Gyu;Ryu Jung Ho |
发明人 |
Chung Kang-Sup;Ryu Tae Gong;Kim Byoung Gyu;Ryu Jung Ho |
分类号 |
B01J39/10 |
主分类号 |
B01J39/10 |
代理机构 |
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代理人 |
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主权项 |
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; 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. |
地址 |
Daejeon KR |