微波消解-钼酸铅重量法测定焙烧钼精矿中钼含量  

Microwave Digestion-Lead Molybdate Gravimetric Method for Determining Molybdenum Content in Roasted Molybdenum Concentrate

作　　者：谢明明[1] 王波 辛雯静 邱少华 刘伟利[1] XIE Mingming;WANG Bo;XIN Wenjing;QIU Shaohua;LIU WeiLi(Jinduicheng Molybdenum Co.,Ltd.,Xi′an 710077,Shaanxi,China)

机构地区：[1]金堆城钼业股份有限公司,陕西西安710077

出　　处：《中国钼业》2024年第4期30-36,共7页China Molybdenum Industry

摘　　要：采用微波消解方法对焙烧钼精矿样品消解,用乙酸铅沉淀溶液中的钼酸根生成钼酸铅沉淀,沉淀经过滤、洗涤、灼烧、称重。氨水分离后残渣中的钼用硫氰酸盐分光光度法进行测定后予以补正,计算得到钼含量,测定范围:40.00%~65.00%,相对标准偏差(RSD)小于5%。Microwave digestion method is used to digest roasted molybdenum concentrate samples.Molybdate ions in lead acetate precipitation solution are used to generate lead molybdate precipitate,which is filtered,washed,burned,and weighed.The molybdenum in the residue after ammonia separation is determined by thiocyanate spectrophotometry and corrected to obtain the molybdenum conten.The measurement range is 40.00%to 65.00%,and the relative standard deviation(RSD)is less than 5%.

关 键 词：钼 焙烧钼精矿 微波消解 钼酸铅 重量法 分光光度法 

分 类 号：TD178[矿业工程—矿山地质测量]