摘要
建立了高频燃烧红外吸收法检测铜冶炼烟灰中的硫分析方法。该试验过程中选择称量0.05~0.06 g样品,加入0.05 g纯铁助熔剂、0.15 g钨粒。将混合试样放入高频燃烧炉中,在富氧条件下高频感应加热燃烧,硫被转化为二氧化硫,气体通过高和低含量的二氧化硫红外检测室检测含量。标准加入法得到硫系数在0.95~1.05之间,该方法的检出限为0.003 3%,相对误差小于1.37%,相对标准偏差小于1.65%(n=11)。此方法操作简单、检测时间短、适合批量检测,结果准确,可满足快速检测的分析要求。
A determination method was established for sulfur in copper smelting flue dust by high-frequency combustion infrared absorption method.In the experiment process,we selected 0.05~0.06g sample for weighing,then added 0.05 g pure iron flux and 0.15 g tungsten particles.The mixed test sample was put into a high-frequency combustion furnace with the oxygen enrichment condition and high-frequency induction heating combustion,sulfur was transformed into sulfur dioxide,and then gas content detection was done through low and high-content sulfur dioxide infrared detection chambers.By using of the standard addition method,the sulfur coefficient is in the range of 0.95~1.05,the method detection limit is 0.0033%,the relative error is less than 1.37%,the relative standard deviation is less than 1.65%(n=11).The method has simple operation,a short detection time,it is proper for batch detection,results are accurate,and it can meet the analysis requirements of rapid detection.
作者
李昊泽
韩水英
李建伟
闫雪松
LI Hao-ze;HAN Shui-ying;LI Jian-wei;YAN Xue-song(Chifeng Yuntong Non-ferrous Metal Co.,Ltd.,Chifeng,Inner Mongolia 024000,China)
出处
《云南冶金》
2024年第2期114-120,共7页
Yunnan Metallurgy
关键词
铜冶炼烟灰
高频燃烧红外吸收法
硫
copper smelting flue dust
high-frequency combustion infrared absorption method
sulfur
