✦ LIBER ✦
Development and verification of a mathematical model for variations of the specific surface area of mineral powders during intensive milling
✍ Scribed by M.Sh. Bafghi; A.H. Emami; A. Zakeri; J. Vahdati Khaki
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 388 KB
- Volume
- 197
- Category
- Article
- ISSN
- 0032-5910
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✦ Synopsis
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 wellestablished 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.