Iranian Journal of Materials Science and Engineering, Volume (6), No (2), Year (2009-6) , Pages (30-36)

Title : ( THE EFFECT OF GRINDING TIME ON THE SPECIFIC SURFACE AREA DURING INTENSIVE GRINDING OF MINERAL POWDERS )

Authors: A. H. Emami , M. Sh. Bafghi , Jalil Vahdati Khaki , A. Zakeri ,

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Abstract

Abstract: Based on experimental observations, a 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 proposed model was tested by the experiments performed using a natural chalcopyrite mineral as well as the published data. It was shown that the model can predict the experimental results with a very good accuracy and can be used to predict what may happen under the similar experimental conditions.

Keywords

, Modeling, Minerals, Chalcopyrite, Ball milling, Specific surface area