RECOVERY OF LITHIUM FROM SEAWATER BY MANGANESE OXIDE ADSORBENT
RECOVERY OF LITHIUM FROM SEAWATER BY MANGANESE OXIDE ADSORBENT
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DOI：
10.1080/01496398608056148
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发表时间：
1986-01-01
影响因子：
2.8
通讯作者：
KATOH, S
中科院分区：
文献类型：
--
作者：
OOI, K;MIYAI, Y;KATOH, S
以γ型锰氧化物和氢氧化锂为原料，经酸处理制备了离子筛（微孔）型锰氧化物（HMnO）。HMnO对海水中的锂离子具有很高的选择性。HMnO从海水中的最大锂吸收量达到7.8 mg/g，相当于Li 2 O的锂含量为1.7%。吸附的锂可用0.01或0.05M盐酸溶液洗脱。在5次重复的吸附-洗脱循环中，对锂离子的吸附容量几乎没有变化。以聚丙烯酰肼为粘结剂制备了颗粒状HMnO，并进行了柱试验。
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 0.05Mhydrochloric 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.