کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
4769243 1425530 2017 27 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Two-step biohydrometallurgical technology for modernization of processing of sulfidic copper-zinc products
ترجمه فارسی عنوان
دو مرحله ای از تکنولوژی بیو هیدرومتالورژیک برای مدرنیزه کردن پردازش محصولات سولفیدیک مس-روی
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
سفارش ترجمه تخصصی
با تضمین قیمت و کیفیت
کلمات کلیدی
بیو اکسید شدن، شستشو با آهن زیستی آهن فریت، کنسانتره سولفید، میکروارگانیسم های اسیدوفیلیک، فلز مس، فلز روی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
A process of the high temperature ferric leaching of the copper-zinc concentrate and pyrite product during a two-step biohydrometallurgical technology was studied. It was shown that the use of the galvanic effect during the leaching of the copper-zinc concentrate enabled to obtain a copper concentrate with low zinc content in the relatively short time (approximately 5.7 h), while zinc concentration in the liquid phase was sufficient for zinc and copper recovery by extraction and cementation, respectively. Zinc content in the concentrate decreased from 7.36 to 0.5% in the process of leaching. The recovery of zinc and copper into the liquid phase was 96.1 and 40.3%, respectively. The leaching of copper-zinc pyrite product and galvanic interactions of minerals made it possible to recover nonferrous metals from it almost completely and to leave the main amount of sulfur and iron in leach residues. Operation of the laboratory unit with the use of bioregeneration of the liquid phase showed the principal possibility of functioning of a two-step biohydrometallurgical technology under semi-continuous conditions with the closed cycle of technological flows. Zinc content decreased from 15.25 to 1.3% during the first step of the leaching process, whereas during the second (biological) step it declined to 1.03% (within 24 h). The recovery of zinc and copper into the liquid phase was 92.6 and 54.6%, respectively. Flow sheet of the copper-zinc concentrate treatment, which can serve as a basis for modernization of the treatment of sulfidic raw materials, is proposed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hydrometallurgy - Volume 174, December 2017, Pages 116-122
نویسندگان
, ,
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
سفارش ترجمه تخصصی
با تضمین قیمت و کیفیت