کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1635806 | 1516950 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Oxidation roasting of molybdenite concentrate
ترجمه فارسی عنوان
کوره اکسیداسیون کنسانتره مولیبدنیت
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کلمات کلیدی
کوره اکسیداسیون، کنسانتره مولیبدنیت، مرفولوژی، پختن
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
چکیده انگلیسی
In order to investigate the oxidation roasting of molybdenite concentrate in pure oxygen atmosphere, experiments at 673, 723, 773, 873 and 973 K were carried out. The phase transitions and morphology evolutions of the samples obtained at different temperatures after reacting for different time were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results showed that molybdenite concentrate was oxidized directly to MoO3 in pure oxygen atmosphere. There were remarkable changes of the morphologies of products with the increase of the roasting temperature. It was also found that sintering phenomenon occurred during the roasting process in pure oxygen when the temperature was above 873 K. The composition of sintered sample was mainly comprised of MoO3 and some unreacted MoS2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 25, Issue 12, December 2015, Pages 4167-4174
Journal: Transactions of Nonferrous Metals Society of China - Volume 25, Issue 12, December 2015, Pages 4167-4174
نویسندگان
Lu WANG, Guo-hua ZHANG, Jie DANG, Kuo-chih CHOU,