Lis (shanghai) Material Technology Co., Ltd.

Shanghai Turbine Company Ltd

Shanghai Electric Power Equipment Co., Ltd.

Shanghai Electric Gas Turbine Co., Ltd.

Yu Hu

Lei Feng

Hong Yang

Ji Liu

Luri Bao

Weiping Tang

Jingze Zhang

Lijian Zhang

Ni Chen

Aping He

The present invention disclosures a preparation method for a coated lithium ion sieve, the method comprises: S01: calcining manganese salt in an air atmosphere for 2 h˜10 h to form MnO; S02: mixing MnOwith lithium salt and grinding, reacting in a high-pressure reaction kettle at 100° C.˜200° C. for 36 h˜72 h to form a product of LiMnO; wherein, the molar ratio of MnOand Li/Mn in the lithium salt is 1:1˜10:1; S03: adding LiMnOto a metal coating reagent and ultrasonic mixing for 2 h˜10 h, drying for 6 h˜24 h, and then calcining at 400° C.˜600° C. for 2 h˜10 h to form an oxide-coated LiMnOlithium ion adsorbent; Wherein, the molar ratio of the metal coating reagent to LiMnOis 0.01:1˜0.08:1; S04: performing an acid treatment to the oxide-coated LiMnOlithium-ion adsorbent to form an acidified product, washing the acidified product and drying to form the coated lithium-ion sieve. The cell structure of the coated lithium-ion sieve of the present invention is more stabler and can be reused for many cycles, which solves a problem that traditional HMnOlithium-ion sieve is easy to dissolve.

Coated lithium-ion sieve and preparation method thereof

Growing community of inventors

Shanghai, China

Yu Hu