硫酸铈容量法测定矿渣中锑含量  

Determination of Antimony Content in Slag by Cerium Sulfate Volumetric Method

作　　者：冯丽琼 金晓峰 陈兵 戈润滔 

机构地区：[1]云南省有色地质测试中心,云南昆明650216

出　　处：《云南冶金》2011年第3期66-67,共2页Yunnan Metallurgy

摘　　要：矿渣中锑含量不能按硫酸铈常规容量法分析,由于矿渣中含有不溶于高热硫酸的黑色物质亚铁硅酸盐,而实验中往往会把亚铁硅酸盐中的Fe(Ⅱ)在滴定时误测为锑,因此应在加盐酸滴定前用特殊过滤的办法来除去硫酸不溶黑渣,分析所得结果与光度法、光谱法、原子荧光法结果一致。该方法操作简易、干扰小、准确度较高、成本较低。The antimony content in slag cannot be analyzed by conventional cerium sulfate volumetric method due to the slag contains the black substance-ferrous silicate which cannot dissolve in hot sulfuric acid,however the Fe（Ⅱ） in ferrous silicate is usually be misdetected as antimony in the test,so the special filtration method can be adopted before hydrochloric acid titration to remove the black slag which cannot dissolve in sulfuric acid,the analysis result coincided with the results of spectrophotometry,spectrometry and atomic fluorescence spectrometry.The method is simple with less interference,high accuracy and low cost.

关 键 词：锑 亚铁硅酸盐 黑渣 过滤 

分 类 号：O655.2[理学—分析化学]