红外吸收法测定铅锌矿中的高硫

Determination of high sulfur in lead-zinc mine with infrared absorption method

使用红外碳硫仪测定铅锌矿中的硫含量.称约0.200g铅锌矿矿样,添加稀释剂二氧化硅粉降低样品中的硫含量.用铁0.6g、钨2g和锡0.4g作助熔剂,分析时间为50s时,用红外法测定铅锌矿中的硫,其相对标准偏差小于1%.该法简单、检测快速,测定结果准确、可靠.

<Abstrcat> The infrared carbon-sulfur instrument is used for determining content of sulfur in lead-zinc mine in this paper. The 0.200g of lead-zinc sample is weighed, then followed by addition of diluent of silica dioxide powder for lowering the content of sulfur in the sample. The 0.6g of Fe, 2g of W and 0.4g of Sn are selected as flux. Sulfur in lead-zinc is determined by infrared method during analysis time of 50s with less 1% of relative deviation. The mehtod is simple and quick in operation and high in determining accuracy.