硫酸铵法中低品位锂瓷土矿提锂尾液铷铯提取技术

doi:10.11962/1006-4990.2019-0626

无机盐工业 ›› 2020, Vol. 52 ›› Issue (11): 60-63.doi: 10.11962/1006-4990.2019-0626

硫酸铵法中低品位锂瓷土矿提锂尾液铷铯提取技术

刘跃龙¹(),王林林²,刘够生³

1.江西科技师范大学化学化工学院,江西南昌 330013
2.华东理工大学化工学院
3.南昌大学化学学院

收稿日期:2020-05-17 出版日期:2020-11-10 发布日期:2020-12-01
作者简介:刘跃龙（1962— ）,男,教授,主要研究方向为硅酸盐矿物资源综合利用;E-mail： lylgyx@163.com。
基金资助:
国家自然科学基金(51564011)

Extraction of rubidium and cerium salts from lithium tail liquid of medium and low grade lithium clay by ammonium sulfate process

Liu Yuelong¹(),Wang Linlin²,Liu Gousheng³

1. School of Chemistry and Chemical Engineering,Jiangxi Science and Technology Normal University,Nanchang 330013,China
2. School of Chemical Engineering,East China University of Science and Technology
3. College of Chemistry,Nanchang University

Received:2020-05-17 Online:2020-11-10 Published:2020-12-01

摘要/Abstract

摘要：

研究了硫酸铵法利用宜丰中低品位[w（氧化锂）<2.0%]锂瓷土矿制备碳酸锂后的提锂母液进一步提取铷铯等贵金属的技术路线。一次碳化提锂后的母液中还含有若干溶解的铷、铯等金属的硫酸盐类,采用分步结晶法,结晶母液降温析出过程中,在温度高的前段步骤析出的是铷铯等溶解度较低的矾盐,而温度低的后段步骤析出的是钾铵等溶解度高的矾盐,从而达到铷铯矾与铵钾矾等初步分离的目的。将成矾除铝阶段硫酸铝钾、硫酸铝铵等矾盐,以焙烧分解的形式继续分出硫酸钾和氧化铝。

关键词: 中低品位锂瓷土, 硫酸铵法, 提锂尾液, 铷铯矾盐

Abstract:

The technical route of preparing lithium carbonate by ammonium sulfate process was studied for the medium and low grade lithium clay with w（Li₂O）<2.0% in Yifeng.The precious metals such as rubidium and cesium from the lithium extraction mother liquor were further studied.The mother liquor after carbonization and extraction of lithium contains several dissolved sulfates of metals such as rubidium and cesium.Using stepwise crystallization method,the less soluble alum salts such as rubidium and cesium,were precipitated in the previous step of higher temperature,while alum salts such as potassium and ammonium were precipitated in the later step of lower temperature.By this way,the rubidium and cesium alum and ammonium and potassium alum were separated.The alum salts such as aluminum potassium sulfate and aluminum ammonium sulfate were roasted at high temperature to decompose as potassium sulfate and alumina.

Key words: medium and low grade lithium clay, ammonium sulfate process, lithium extraction tail liquid, alums of rubidium and cesirm comprehensive utilization

中图分类号:

TQ131.11

刘跃龙,王林林,刘够生. 硫酸铵法中低品位锂瓷土矿提锂尾液铷铯提取技术[J]. 无机盐工业, 2020, 52(11): 60-63.

Liu Yuelong,Wang Linlin,Liu Gousheng. Extraction of rubidium and cerium salts from lithium tail liquid of medium and low grade lithium clay by ammonium sulfate process[J]. Inorganic Chemicals Industry, 2020, 52(11): 60-63.

图/表 8

图1

表1

表2

图2

图3

图4

图5

图6

参考文献 12

[1]	黄东方, 郑红, 宝阿敏, 等. t-BAMBP/磺化煤油萃取体系从盐湖卤水中萃取铷的动力学研究[J]. 盐湖研究, 2017,25(1):49-56.
[2]	杨少华, 赖晓晖, 王君. t-BAMBP萃取分离高钾钠卤水中的铷工艺研究[J]. 有色金属科学与工程, 2015,6(5):17-21.
[3]	Zhang X F, Tan X M, Li C, et al. Energy-efficient and simultaneous extraction of lithium, rubidium and cesium from lepidolite concent-rate via sulfuric acid baking and water leaching[J]. Hydrometall-urgy, 2019,185:244-249.
[4]	Xing P, Wang G D, Wang C Y, et al. Separation of rubidium from potassium in rubidium ore liquor y solvent extraction with t-BAMBP[J]. Minerals Engineering, 2018,121:158-163. doi: 10.1016/j.mineng.2018.03.014
[5]	黄鹏, 康健, 刘爽, 等. t-BAMBP从萃铯余液中分离提取铷的工艺研究[J]. 矿产保护与利用, 2018,218(6):51-54.
[6]	张利珍, 谭秀民, 张秀峰, 等. 提锂云母液萃取分离铯铷研究[J]. 无机盐工业, 2015,47(9):62-64.
[7]	张永兴, 伊跃军, 张利珍, 等. 从锂云母浸出液中分离铷铯试验研究[J].有色金属:冶炼部分, 2019(6):30-32.
[8]	化工部长沙设计研究院.一种连续生产铯铷矾和钾明矾的工艺:中国, 201510748140.1[P]. 2016 -03-02.
[9]	陈晓洲.一种钾铷铯矾的提取方法:中国, 107012323A[P]. 2017 -08-04.
[10]	张勇, 袁礼涛, 凌庄坤.从锂云母原料中提锂后分离钾铷铯矾的方法:中国, 102828052A[P]. 2012 -12-19.
[11]	Browning P E, Spencer S R. On the separation of caesium and rubi-dium by the fractional crystallization of the aluminium and iron alums and its application to the extraction of these elements from their mineral sources[J]. American Journal of Science, 1916,42(249):193-212.
[12]	Ballirano P. Thermal behaviour of alum-(Rb) RbAl(SO₄)₂·12H₂O from in-situ laboratory high-temperature X-ray powder diffraction data[J]. Periodico Di Mineralogia, 2015,84(2):233-246.

温度/ ℃	溶解度/g
温度/ ℃	Na	NH₄	K	Rb	Cs
0	56.2	2.1	3.0	0.7	0.2
10	60.5	5.0	4.0	4.5	0.3
20	61.5	7.74	5.9	1.4	0.4
30	66.7	10.9	7.9	9.0	—
40	—	14.9	11.7	3.1	0.8
50	—	—	17.0	5.0	1.24
60	—	27.0	25.0	21.0	—
70	—	—	40.0	26.9	—
80	—	—	71.0	21.6	5.3
90	—	—	109.0	50.3	—
100	—	—	154.0	—	22.8

温度/℃	质量/g	w（Rb₂O）/%	w（Cs₂O）/%	w（Li₂O）/%
混合矾	40.0	1.637	0.420	0.030
40	3.4	5.246	4.072	未检出
30	20.69	2.094	0.134	未检出
20	6.04	0.563	0.031	0.008
0	5.2	0.186	0.015	0.010

首页

全国无机盐信息中心

中国化工学会

无机酸碱盐专业委员会

硫酸铵法中低品位锂瓷土矿提锂尾液铷铯提取技术

Extraction of rubidium and cerium salts from lithium tail liquid of medium and low grade lithium clay by ammonium sulfate process

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

图/表 8

参考文献 12

相关文章 3

Metrics

本文评价

推荐阅读 10

[1]	刘够生,王林林,刘跃龙. 硫酸铵法利用中低品位锂瓷土矿制备碳酸锂技术研究[J]. 无机盐工业, 2020, 52(10): 125-129.
[2]	周晓军,刘国旺,杨尚明,董守龙,张世春,张锋. 利用盐湖提锂尾液制备氢氧化锂工艺研究[J]. 无机盐工业, 2019, 51(9): 76-80.
[3]	董守龙，杨尚明，张世春，申朝贵，马晓平. 纳滤和反渗透组合回收盐湖提锂尾液中锂的研究[J]. 无机盐工业, 2019, 51(12): 53-57.

首 页

硫酸铵法中低品位锂瓷土矿提锂尾液铷铯提取技术

Extraction of rubidium and cerium salts from lithium tail liquid of medium and low grade lithium clay by ammonium sulfate process

RichHTML

PDF (PC)

可视化

引用本文

使用本文

首页