کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
227853 | 464829 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Interactions of xanthate with pyrite and galena surfaces in the presence and absence of oxygen
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Interactions of xanthate with pyrite and galena surfaces in the presence and absence of oxygen Interactions of xanthate with pyrite and galena surfaces in the presence and absence of oxygen](/preview/png/227853.png)
چکیده انگلیسی
In this study, first-principles calculations were performed to investigate the interactions of hydrogen xanthate (HOCS2−) with pyrite (1 0 0) and galena (1 0 0) surfaces. The calculation results suggest that strong chemisorption of HOCS2− occurs at Fe sites on the pyrite (1 0 0) surface, whereas its interaction at Pb sites on the galena (1 0 0) surface is weak. The interaction of xanthate with oxidized pyrite surface is weakened while the interaction of xanthate with oxidized galena surface is enhanced. The hydration of xanthate and mineral surfaces is discussed. Dixanthogen could be formed on the pyrite surface but not on the galena surface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Industrial and Engineering Chemistry - Volume 20, Issue 1, 25 January 2014, Pages 268–273
Journal: Journal of Industrial and Engineering Chemistry - Volume 20, Issue 1, 25 January 2014, Pages 268–273
نویسندگان
Jian-Hua Chen, Yu-Qiong Li, Li-Hong Lan, Jin Guo,