用于测定铜熔炼渣中含砷物相的选择性逐级提取方法及其评价（英文）

发布时间：2022-12-05 06:53

　　开发一种优化的选择性逐级提取方法并用于评价铜熔炼渣中含砷物相组成。该方法将铜熔炼渣中的含砷物相归类为水溶性砷、可溶性砷酸盐、难溶性砷酸盐、含砷硫化物、毒砂和金属砷以及固化于玻璃相中的砷。采用电感耦合等离子体原子发射光谱、扫描电镜、透射电镜、X射线衍射和红外光谱等手段对各级提取液和渣进行表征。采用单一物相提取实验评价提取试剂的选择性和砷回收率。结果表明,炉渣中各组分砷的比例与文献报道具有较好的一致性,且总砷回收率保持在90%以上。这表明,此研究优化的选择性逐级提取方法能可靠地应用于铜冶炼含砷副产物中含砷物相的成分评价。 

【文章页数】：13 页

【文章目录】：
1 Introduction
2 Experimental
    2.1 Samples from copper flash smelting
    2.2 Selective sequential extraction scheme
    2.3 Single-phase extraction procedures
    2.4 Characterization methods
3 Results and discussion
    3.1 Characterization of tailings slag
    3.2 Optimization of SSE procedure
        3.2.1 Readily soluble As
        3.2.2 Dissolvable arsenates
        3.2.3 Sparingly soluble arsenates
        3.2.4 As residing in sulfides
        3.2.5 Arsenopyrite and metal As
        3.2.6 As incorporated into glassy silicates
        3.2.7 Mass loss during SSE process
    3.3 Evolution of solid phase during SSE procedure
    3.4 SSE procedure assessment
    3.5 Application of SSE procedure to by-products from copper smelting
4 Conclusions
Supporting materials


【参考文献】：
期刊论文
[1]含砷铜渣高温焙烧过程中砷的挥发行为[J]. 万新宇,齐渊洪,高建军,武兵强.  有色金属工程. 2017(04)



本文编号：3709908