開發(fā)一種優(yōu)化的選擇性逐級提取方法并用于評價銅熔煉渣中含砷物相組成。該方法將銅熔煉渣中的含砷物相歸類為水溶性砷、可溶性砷酸鹽、難溶性砷酸鹽、含砷硫化物、毒砂和金屬砷以及固化于玻璃相中的砷。采用電感耦合等離子體原子發(fā)射光譜、掃描電鏡、透射電鏡、X射線衍射和紅外光譜等手段對各級提取液和渣進行表征。采用單一物相提取實驗評價提取試劑的選擇性和砷回收率。結(jié)果表明,爐渣中各組分砷的比例與文獻報道具有較好的一致性,且總砷回收率保持在90%以上。這表明,此研究優(yōu)化的選擇性逐級提取方法能可靠地應(yīng)用于銅冶煉含砷副產(chǎn)物中含砷物相的成分評價。 

【文章頁數(shù)】：13 頁

【文章目錄】：
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


【參考文獻】：
期刊論文
[1]含砷銅渣高溫焙燒過程中砷的揮發(fā)行為[J]. 萬新宇,齊淵洪,高建軍,武兵強.  有色金屬工程. 2017(04)



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