Full Characterization of Sarcheshmeh and Khatoon-Abad Copper Anode Slimes: Characterization Impact on the Decopperization Operation
- سال انتشار: 1402
- محل انتشار: ماهنامه بین المللی مهندسی، دوره: 36، شماره: 5
- کد COI اختصاصی: JR_IJE-36-5_010
- زبان مقاله: انگلیسی
- تعداد مشاهده: 227
نویسندگان
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
چکیده
Copper anode slime, a valuable by-product generated during the electrorefining process, is an important secondary resource for the recovery of metals, such as gold, silver, selenium, tellurium, PGMs and copper. A full characterization of the anode slime is an essential part of the efficient recovery of these valuable metals. In this research, the refinery slimes of the Sarcheshmeh and Khatoon-Abad copper complexes, were fully characterized and compared using inductively coupled plasma (ICP), X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), thermogravimetric analysis (TGA), differential thermal analysis (DTA), and particle size analysis. Besides the bottom cell slime characterization, properties of the Sarcheshmeh’s adherent slime was also analyzed and correlated. Sarcheshmeh copper slime particle size was found much smaller than the Khatoon-Abad slime. For both slimes though, the major part the gold and tellurium are located in larger than ۳۸-micron particles. The main difference in thermal analysis of the two slime samples was originated from their selenium content difference. This has caused the higher concentration of non-selenide copper compounds at Khatoon-Abad slime, resulted in its easier copper recovery. Decopperization of both bottom-cell slimes were investigated and a significant difference in copper dissolution behaviors of the two slimes were observed due to their characteristic difference including the copper-selenide phases and capsulated copper in the barium sulfate agglomerates. Copper dissolution from Khatoon-Abad slime was observed to reach ۹۰% comparing to ۴۰% for Sarcheshmeh slime using atmospheric leaching.کلیدواژه ها
Characterization, Sarcheshmeh Copper Complex, Khatoon-Abad Copper Complex, Bottom-cell slime, Adherent slimeاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.