采用硫酸熟化—水浸工艺从锂云母中提取锂铷铯
|
摘要
采用硫酸熟化—水浸工艺进行综合提取锂云母中锂、铷、铯的研究,考察了硫酸浓度、酸矿比、熟化温度、熟化时间、浸出温度、液固比等对锂、铷、铯浸取率的影响。结果表明,提取锂、铷、铯的最优工艺条件为:酸矿比1∶1、硫酸浓度70%、120℃熟化8h、液固比4∶1、50℃浸出1h。在此条件下,锂、铷、铯的浸出率分别为91.42%、88.83%、90.09%。
Comprehensive extraction of Li,Rb and Cs from lepidolite concentrate by sulfuric acid curing and water leaching was studied.Effects of sulfuric acid concentration,acid-ore ratio,curing temperature,curing time,leaching temperature,and L/S on leaching of Li,Rb and Cs were discussed.The results show that leaching rate of Li,Rb and Cs is 91.42%,88.83% and 90.09% respectively under the optimum conditions including acid-ore ratio of 1∶1,sulfuric acid concentration of 70%,curing temperature of 120℃,curing time of 8 h,leaching temperature of 50℃,L/S=4/1,and leaching time of 1 h.
Comprehensive extraction of Li,Rb and Cs from lepidolite concentrate by sulfuric acid curing and water leaching was studied.Effects of sulfuric acid concentration,acid-ore ratio,curing temperature,curing time,leaching temperature,and L/S on leaching of Li,Rb and Cs were discussed.The results show that leaching rate of Li,Rb and Cs is 91.42%,88.83% and 90.09% respectively under the optimum conditions including acid-ore ratio of 1∶1,sulfuric acid concentration of 70%,curing temperature of 120℃,curing time of 8 h,leaching temperature of 50℃,L/S=4/1,and leaching time of 1 h.
引文
[1]李康,王建平.中国锂资源开发利用现状及对策建议[J].资源与产业,2016,18(1):82-86.
[2]中共宜春市委宣传部.建设千亿工程打造亚洲锂都[J].当代江西,2011(8):6-7.
[3]林高逵.江西锂云母-石灰石烧结工艺的改进研究[J].稀有金属与硬质合金,1999,23(2):46-48.
[4]冯怡利,付希禄,刘尧,等.锂云母制备碳酸锂工艺的研究[J].轻金属,2018(4):17-19.
[5]郭春平,周健,文小强,等.锂云母硫酸盐法提锂研究[J].无机盐工业,2014,46(3):41-44.
[6]郭春平,周健,文小强,等.锂云母硫酸盐法提取锂铷铯的研究[J].有色金属(冶炼部分),2015(12):31-33.
[7]YAN Q X,LI X H,WANG Z X,et al.Extraction of lithium from lepidolite using chlorination roasting-water leaching process[J].Transactions of Nonferrous Metals Society of China,2012,22(7):1753-1759.
[8]伍习飞,尹周澜,李新海,等.氯化焙烧法处理宜春锂云母矿提取锂钾的研究[J].矿冶工程,2012,32(3):95-98.
[9]张秀峰,伊跃军,张利珍,等.锂云母精矿的硫酸熟化研究[J].矿产保护与利用,2018(4):59-62.
[10]赵寻,杨静,马鸿文,等.硫酸介质中锂云母分解反应动力学[J].中国有色金属学报,2015,25(9):2588-2595.
[11]徐盛明,汪锡孝.锂云母焙烧矿的氯化铵压煮过程的研究[J].稀有金属与硬质合金,1993,21(4):22-27.
[12]王文祥,黄继芬,刘志宏.宜春锂云母压煮溶出新工艺研究[J].有色金属(冶炼部分),2001(5):19-21.
[13]颜群轩.锂云母中有价金属的高效提取[D].长沙:中南大学,2012.
[2]中共宜春市委宣传部.建设千亿工程打造亚洲锂都[J].当代江西,2011(8):6-7.
[3]林高逵.江西锂云母-石灰石烧结工艺的改进研究[J].稀有金属与硬质合金,1999,23(2):46-48.
[4]冯怡利,付希禄,刘尧,等.锂云母制备碳酸锂工艺的研究[J].轻金属,2018(4):17-19.
[5]郭春平,周健,文小强,等.锂云母硫酸盐法提锂研究[J].无机盐工业,2014,46(3):41-44.
[6]郭春平,周健,文小强,等.锂云母硫酸盐法提取锂铷铯的研究[J].有色金属(冶炼部分),2015(12):31-33.
[7]YAN Q X,LI X H,WANG Z X,et al.Extraction of lithium from lepidolite using chlorination roasting-water leaching process[J].Transactions of Nonferrous Metals Society of China,2012,22(7):1753-1759.
[8]伍习飞,尹周澜,李新海,等.氯化焙烧法处理宜春锂云母矿提取锂钾的研究[J].矿冶工程,2012,32(3):95-98.
[9]张秀峰,伊跃军,张利珍,等.锂云母精矿的硫酸熟化研究[J].矿产保护与利用,2018(4):59-62.
[10]赵寻,杨静,马鸿文,等.硫酸介质中锂云母分解反应动力学[J].中国有色金属学报,2015,25(9):2588-2595.
[11]徐盛明,汪锡孝.锂云母焙烧矿的氯化铵压煮过程的研究[J].稀有金属与硬质合金,1993,21(4):22-27.
[12]王文祥,黄继芬,刘志宏.宜春锂云母压煮溶出新工艺研究[J].有色金属(冶炼部分),2001(5):19-21.
[13]颜群轩.锂云母中有价金属的高效提取[D].长沙:中南大学,2012.