浅析无水氯化镁颗粒料中含氧化合物杂质对盐湖卤水法炼镁的影响  

Analysis on the influence of oxygen-containing compounds impurities in anhydrous magnesium chloride granules on magnesium smelting by salt lake brine method

作　　者：夏风 马芬兰 兰青 都永生[3] Xia Feng;Ma Fenlan;Lan Qing;Du Yongsheng(Qinghai Huixin Asset Management Co.,Ltd.,Golmud 816000,China;Qinghai Beichen Technology Co.,Ltd.,Xining 810007,China;Qinghai Institute of Salt Lake Chinese Academy of Sciences,Xining 810008,China)

机构地区：[1]青海汇信资产管理有限公司,青海格尔木816000 [2]青海北辰科技有限公司,青海西宁810007 [3]中国科学院青海盐湖研究所,青海西宁810008

出　　处：《轻金属》2023年第11期39-43,共5页Light Metals

基　　金：青海省科学技术厅联合青海汇信资产管理有限责任公司“盐湖无水氯化镁电解关键技术研究与应用”项目;2022年度青海省“昆仑英才·高端创新创业人才”计划培养拔尖人才项目;中国科学院STS区域重点项目“天然水氯镁石介质循环吸附制备无水氯化镁新工艺”(KFJ-STS-QYZD-2021-06-001)。

摘　　要：卤水法炼镁过程中无水氯化镁品质对金属镁质量有一定影响。无水氯化镁电解制备金属镁的过程中,受到多种因素的影响,尤其含氧化合物杂质对电解过程影响显著。含氧化合物杂质的主要影响表现为降低电流效率、金属镁难以汇集、阴极钝化等。本文针对盐湖卤水法炼镁中的硫酸盐、碱式氯化镁、氧化镁、水分、硼化物、硅氧化物等含氧化合物杂质在电解过程中的危害行为进行了浅析,并提出了相应的解决措施。The quality of anhydrous magnesium chloride has certain influence on the quality of magnesium metal in the process of magnesium smelting by brine method.The electrolytic preparation of magnesium metal from magnesium chloride is affected by many factors,especially the oxygen-containing compounds impurities.The main effects of oxygen-containing compounds impurities are lower current efficiency,difficulty in collecting magnesium metal and cathode passivation.This paper analyzes the harmful behavior of sulfate,basic magnesium chloride,magnesium oxide,water,boride,silicon oxide and other oxygen-containing compounds impurities in the electrolytic process,and puts forward corresponding solutions.

关 键 词：含氧化合物 载氧量 阴极钝化 电流效率 

分 类 号：TF822[冶金工程—有色金属冶金]