Recovery of Lithium from Seawater by Manganese Oxide Adsorbent
- 1 October 1986
- journal article
- research article
- Published by Taylor & Francis in Separation Science and Technology
- Vol. 21 (8), 755-766
- https://doi.org/10.1080/01496398608056148
Abstract
Ion-sieve (microporous) type manganese oxide (HMnO) was prepared by acid treatment of lithium-introduced manganese oxide which was obtained from γ-type manganese oxide and lithium hydroxide. The HMnO showed high selectivity for lithium ions in seawater. The maximum lithium uptake by the HMnO from seawater reached 7.8 mg/g which corresponded to a lithium content of 1.7% as Li2O. The adsorbed lithium could be easily eluted with 0.01 or 0.05 M hydrochloric acid solution. The adsorptive capacity for lithium ion scarcely changed during five repetitions of the adsorption-elution cycle. The column test was carried out by using granulated HMnO which was prepared with polyacrylic hydrazide as a binder.Keywords
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