湿法冶金2025，Vol.44Issue(5)：626-634,9.DOI:10.13355/j.cnki.sfyj.2025.05.007
铁氟共掺杂锰系离子筛的制备及其对锂的吸附性能研究
Preparation of Fe and F Co-doped Manganese Ion Sieve and Its Adsorption Performance for Lithium
摘要
Abstract
Iron and fluorine co-doped manganese ion sieve HMFeO-F was prepared by high temperature solid phase method.The effects of calcination temperature,calcination time and doping ratio on the structure of the ion sieve were investigated by XRD,SEM,FT-IR and BET,and its adsorption performance was studied.The results show that the adsorption capacity for lithium of HMFeO-F is 31.57 mg/g under the conditions of calcination temperature of 800℃,calcination time of 10 h,molar ratio of lithium to manganese of 1/2,and doping mole fractions of Fe and F of 5％and 10％,respectively.The Mn dissolution loss rate during the adsorption process is only 4.52％,which is 61％lower than that of the undoped.At the same time,the introduction of magnetic Fe3 O4 makes the magnetic recovery rate of the material can reach 90.2％.After five cycles of tests,the equilibrium adsorption capacity for lithium of HMFeO-F can still reach 25.87 mg/g,and the manganese dissolution loss rate remains within 5％.For a coal gangue acid leaching solution with a lithium mass concentration of 12.98 mg/L,lithium is adsorbed by HMFeO-F,and the lithium adsorption rate can reach 99％.The use of ion sieve to extract lithium from coal gangue can not only develop a new way to extract lithium,but also is expected to achieve the high-value utilization of coal gangue.关键词
煤矸石酸浸液/锰系锂离子筛/铁氟共掺杂/锂/吸附Key words
coal gangue acid leaching solution/manganese series lithium ion sieve/Fe and F co-doping/lithium/adsorption分类
矿业与冶金引用本文复制引用
解文鹏,姚素玲,付元鹏,董宪姝..铁氟共掺杂锰系离子筛的制备及其对锂的吸附性能研究[J].湿法冶金,2025,44(5):626-634,9.基金项目
国家自然科学基金青年基金项目(52504303) （52504303）
山西省重点研发计划项目(202202090301009) （202202090301009）
山西省基础研究计划项目(202103021223045). （202103021223045）
