| 响应面法优化磷酸三丁酯-丁酸乙酯体系协同提锂工艺研究 |
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| 引用本文： | 石成龙,马淑清,秦亚茹,刘兵,李海朝.响应面法优化磷酸三丁酯-丁酸乙酯体系协同提锂工艺研究[J].无机盐工业,2022,54(10):37-41. |
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| 作者姓名： | 石成龙 马淑清 秦亚茹 刘兵 李海朝 |
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| 作者单位： | 1.青海民族大学化学化工学院,青海 西宁 8100072.青海资源化学研究所3.中国科学院 青海盐湖研究所,中国科学院盐湖资源综合高效利用重点实验室 |
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| 基金项目： | 青海省自然科学基金(2020-ZJ-953Q);青海民族大学校级规划项目(2022GH12);天津大学-青海民族大学自主创新基金(2022TQ05);青海民族大学高层次人才项目(2019XJG04);青海民族大学创新创业训练计划项目(DCXM-2022-09) |
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| 摘 要： | 以磷酸三丁酯（TBP）体积分数、铁锂物质的量比、相比三因素为自变量,以锂萃取率为响应指标,采用响应面分析法研究了磷酸三丁酯-丁酸乙酯体系从盐湖卤水中协同提锂工艺。通过响应面法得到体系的最优工艺条件为TBP体积分数为43%、铁锂物质的量比为1.9、相比（有机相与水相体积比）为2.4,在此条件下锂萃取率的预测值为92.39%、实际测量值为91.42%,预测值和实测值之间的相对误差为1.05%。该研究可为盐湖卤水中锂的提取分离提供参考。
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| 关 键 词： | 响应面分析法 萃取 卤水 锂 |
| 收稿时间： | 2022-01-19 |
Study on optimization of synergistic lithium extraction process of tributyl phosphate-ethyl butyrate system by response surface method |
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| SHI Chenglong,MA Shuqing,QIN Yaru,LIU Bing,LI Haichao.Study on optimization of synergistic lithium extraction process of tributyl phosphate-ethyl butyrate system by response surface method[J].Inorganic Chemicals Industry,2022,54(10):37-41. |
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| Authors: | SHI Chenglong MA Shuqing QIN Yaru LIU Bing LI Haichao |
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| Affiliation: | 1. School of Chemistry and Chemical Engineering,Qinghai Minzu University,Xining 810007,China2. Institute of Resource Chemistry of Qinghai3. Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences |
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| Abstract: | The process of synergistic extraction of lithium from salt lake brine by tributyl phosphate-ethyl butyrate system was studied by response surface method with volume concentration of TBP,molar ratio of iron-lithium and phase ratio as independent variables and lithium extraction efficiency as response index.The optimal process conditions of the system obtained by response surface method were as follows:the volume concentration of TBP was 43%,the molar ratio of iron to lithium was 1.9 and phase ratio was 2.4.Under these conditions,the predicted value of lithium extraction efficiency was 92.39%,the actual measured valuewas 91.42%,and the relative error between predicted value and measured value was 1.05%.This study could provide a reference for the separation and extraction of lithium from salt lake brine. |
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| Keywords: | response surface method extraction brine lithium |
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