改进化学顺序提取-电感耦合等离子体质谱法应用于铅锌尾矿中铜铅锌镉镍的化学形态分析

发布时间：2018-01-07 05:41

本文关键词：改进化学顺序提取-电感耦合等离子体质谱法应用于铅锌尾矿中铜铅锌镉镍的化学形态分析　出处：《冶金分析》2016年07期 　论文类型：期刊论文

【摘要】：采用改进化学顺序提取(BCR)法提取铅锌尾矿样品中铜、铅、锌、镉和镍等重金属元素的可交换态(F1)、可还原态(F2)、可氧化态(F3)和残渣态(F4)四种形态,利用电感耦合等离子体质谱法(ICP-MS)测定了铅锌尾矿中铜、铅、锌、镉和镍的各元素总量及各元素不同形态含量。研究结果表明:各元素不同形态的方法检出限在0.012~0.85mg/kg之间,测定结果的相对标准偏差(RSD,n=5)在2.1%~9.9%之间;各元素所有形态量的总和与各元素测得总量的比值在88.1%~101.2%之间。这说明实验所用的形态分析方法适用于铅锌尾矿中铜、铅、锌、镉和镍的形态分析。采用实验方法对3个铅锌尾矿样品进行分析测定,结果表明铜、铅、锌、镉和镍的化学形态中残渣态含量最大,占各元素总量的30%及以上;铅和锌含量分布从高到低的顺序依次为F4、F2、F1、F3,铜和镍为F4、F3、F2、F1,镉为F4、F1、F3、F2。实验方法可为铅锌尾矿区中重金属元素的综合利用、环境影响评价及环境治理提供重要参考信息。
[Abstract]:The improvement of chemical extraction sequence (BCR) extraction of lead-zinc tailings samples of copper, lead, zinc, cadmium and nickel and other heavy metals are exchangeable, reducible (F1) (F2), oxidizable and residual fraction (F3) (F4) four forms, using inductively coupled plasma mass spectrometry (ICP-MS) in the determination of copper tailings, lead, zinc, cadmium and nickel in the total amount of each element and the elements of different forms of content. The results show that the method of elements of different forms of detection limit in the range of 0.012~0.85mg/kg, the relative standard deviation (RSD, n=5) between 2.1%~9.9%; ratio of the sum of the elements of all forms the amount of each element and the measured total between 88.1%~101.2%. The analysis of the morphological method is applicable to the lead-zinc tailings of copper, lead, zinc, cadmium and nickel. The morphological analysis by experimental method in 3 samples of lead-zinc tail were analyzed, the results show that copper, lead, zinc, The residual content of chemical forms of cadmium and nickel in the largest, accounted for 30% of the total amount of each element and above; the content of lead and zinc distribution from high to low order F4, F2, F1, F3, Cu and Ni for F4, F3, F2, F1, F1, F3, CD F4, comprehensive utilization F2. method of heavy metal elements in the tailings area, provide important reference information for the environmental impact assessment and environmental governance.

【作者单位】：中国有色桂林矿产地质研究院有限公司测试中心;
【基金】：广西科学研究与技术开发计划项目(桂科能14123006-12、桂科能14123006-14)
【分类号】：O657.63;TD926.4
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