冰晶石-月壤熔盐体系初晶温度的研究  

Initial crystal temperature of cryolite molten salts containing lunar soil

作　　者：刘爱民[1] 张元坤 李文强[1] 郭万辉 刘风国[1] 胡宪伟[1] 石忠宁[1] LIU Aimin;ZHANG Yuankun;LI Wenqiang;GUO Wanhui;LIU Fengguo;HU Xianwei;SHI Zhongning(Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education),Northeastern University,Shenyang 110819,China;Zhengzhou Non-ferrous Metals Research Institute Co.,Ltd of CHALCO,Zhengzhou 450041,China;Yingkou Zhongwang Aluminum Materials Industry Co.,Ltd.,Yingkou 115000,China)

机构地区：[1]东北大学多金属共生矿生态化冶金教育部重点实验室,辽宁沈阳110819 [2]中铝郑州有色金属研究院有限公司,河南郑州450041 [3]营口忠旺铝材料有限公司,辽宁营口115000

出　　处：《中国有色冶金》2024年第1期17-23,共7页China Nonferrous Metallurgy

基　　金：国家自然科学基金青年基金(52004062)。

摘　　要：冰晶石熔盐电解法可实现月壤原位利用制备金属和氧气,研究冰晶石-月壤熔盐体系的初晶温度对电解槽稳定运行具有重要意义。本文以火山渣和玄武岩复配的NEU-1月壤仿真样为原料,与冰晶石、CaF_(2)混合配置电解质,将其作为待测试样,利用差热分析法测量了不同月壤仿真样添加量、不同分子比的冰晶石熔盐体系的初晶温度。结果表明,当分子比为2.2时,随着月壤仿真样添加量从0%增加至24%,冰晶石熔盐体系的初晶温度从974.9℃降低至932.0℃;每添加1%的月壤仿真样,冰晶石熔盐体系的初晶温度降低约1.79℃;当月壤仿真样添加量为8%时,随着分子比从2.2升高至2.7,冰晶石熔盐体系的初晶温度从960.0℃升高至979.4℃。The electrolysis of lunar soil in cryolite molten salts can realize the in-situ preparation of metals and oxygen, and it is of great significance to study the initial crystal temperature of cryolite molten salts containing lunar soil for the stable operation of the electrolytic cell. In this study, NEU-1 lunar soil simulant prepared from volcanic slag and basalt was used as raw material, mixed with cryolite to obtain electrolyte, which is used as sample to be tested, and the initial crystal temperature of cryolite molten salts with different NEU-1 lunar soil simulant addition and molecular ratios was measured by differential thermal analysis. The results indicated that when the molecular ratio was 2.2, the initial crystal temperature of the cryolite molten salts decreased from 974.9 ℃ to 932.0 ℃ with the increase of the addition amount of lunar soil simulant from 0% to 24%. The initial crystal temperature of the cryolite molten salts decreased by 1.79 ℃ as every 1% of the lunar soil simulant was added. When the addition amount of lunar soil simulant was 8%, the initial crystal temperature of the cryolite molten salts increased from 960.0 ℃ to 979.4 ℃ with the increase of molecular ratio from 2.2 to 2.7.

关 键 词：冰晶石 月壤 熔盐 初晶温度 熔盐电解法 电解质 

分 类 号：TF821[冶金工程—有色金属冶金]