Inorganic Chemicals Industry >
Preparation of aluminum-based lithium adsorbent and its application in extracting lithium from Taihe underground brine
Received date: 2020-09-24
Online published: 2021-07-08
China has rich lithium resources,but most of them exist in brine,so it is difficult to extract and utilize.In order to improve the efficiency of lithium extraction process in Taihe underground brine,the high performance aluminum-based lithium adsorbent was prepared.The aluminum-based lithium adsorbent was prepared by one step method.The crystal structure was characterized by X-ray powder diffraction.The influence of the feeding mode,the ratio of the aluminum lithium substantial amount,the pH at the end of the reaction,the reaction temperature,the rate of feeding and the stirring speed on the adsorption capacity of the adsorbent were studied.The optimum preparation conditions of the sorbent were determined:the ratio of the content to the aluminum lithium substance was 1.25∶1,the pH of the reaction terminal point was 6~7,the reaction tempera-ture was 75 ℃,the acceleration rate of the sodium hydroxide solution was 3 mL/min,and the stirring speed was 100 r/min. The results showed that the average adsorption capacity of the adsorbent was 15.06 mg/g,the average desorption capacity was 14.11 mg/g and the desorption efficiency was 93.69%.
Penggao Cheng , Chuanfeng Huang , Shantian Gan , Jingkuan Gong , Jun Xiang , Na Tang . Preparation of aluminum-based lithium adsorbent and its application in extracting lithium from Taihe underground brine[J]. Inorganic Chemicals Industry, 2021 , 53(6) : 140 -144 . DOI: 10.19964/j.issn.1006-4990.2020-0439
[1] | 孟兴智. 离子筛型锂吸附剂的成型及其性能研究[D]. 天津:河北工业大学, 2005. |
[2] | Li Y H, Zhao Z W, Liu X H, et al. Extraction of lithium from salt lake brine by aluminum-based alloys[J]. Transactions of Nonferrous Me-tals Society of China, 2015,25(10):3484-3489. |
[3] | 伍倩, 刘喜方, 郑绵平, 等. 我国盐湖锂资源开发现状、存在问题及对策[J]. 现代化工, 2017,37(5):1-5. |
[4] | 叶流颖, 曾德文, 陈驰, 等. 卤水提锂吸附剂应用研究进展[J]. 无机盐工业, 2019,51(3):16-19. |
[5] | 李杰, 熊小波. 铝盐吸附剂盐湖卤水提锂的研究现状及展望[J]. 无机盐工业, 2010,42(10):9-11. |
[6] | 郭敏, 吴志坚, 周园, 等. 一种微孔铝盐锂吸附剂及其制备方法、填料和富集锂离子的方法: 中国, 106076243A[P]. 2016-11-09. |
[7] | Wang S, Zheng S, Wang Z, et al. Superior lithium adsorption and required magnetic separation behavior of iron-doped lithium ion-sieves[J]. Chemical Engineering Journal, 2018,332:160-168. |
[8] | 张绍成, 马培华, 邓小川. 吸附法从盐湖卤水中提取锂的方法:中国, 1511964A[P]. 2004-07-14. |
[9] | Wang S L, Lin C H, Yan Y Y, et al. Synjournal of Li/Al LDH using aluminum and LiOH[J]. Applied Clay Science, 2013,72:191-195. |
[10] | Lee J M, Bauman W C. Recovery of lithium from brines:US, 4221767[P]. 1982-08-31. |
[11] | Bauman W C, Burba Iii J L. Composition for the recovery of lithium values from brine and process of making/using said composition:US, 6280693[P]. 2001-08-28. |
/
〈 |
|
〉 |