کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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238026 | 465737 | 2010 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Development and verification of a mathematical model for variations of the specific surface area of mineral powders during intensive milling Development and verification of a mathematical model for variations of the specific surface area of mineral powders during intensive milling](/preview/png/238026.png)
In order to describe temporal evolution of BET surface area of a mineral substance during an intensive milling process, a mathematical model in the form of S = a + b e− mt + c e– nt has been developed based on well-established phenomena in mechanical activation processes. Validity of the proposed model was verified by the results of experiments performed on a natural chalcopyrite mineral as well as those reported in the literature on a variety of sulfide minerals. It was shown that the model could fit different types of surface area variation with a very good accuracy.
A mathematical model has been developed to describe the effect of grinding time on the changes of BET surface area of a mineral substance during intensive grinding process. Validity of the model was verified using the results of milling experiments performed on a natural chalcopyrite mineral as well as the published data.Figure optionsDownload as PowerPoint slide
Journal: Powder Technology - Volume 197, Issues 1–2, 10 January 2010, Pages 87–90