Effects of Rotation Speeds and Media Density on Ground Calcium Carbonate during Ultrafine Grinding Process in Planetary Mill

Abstract:

Superfine ground calcium carbonate (GCC) produced by carbonate minerals is a widely used inorganic powder material. In order to get a finer GCC powder with narrow distribution span, the effect of rotational speed and media density on ground GCC were studied by dry grinding GCC in a planetary ball mill under different rotational speed and various media density. The grinding limit-particle size and distribution of grinding calcium carbonate were measured by centrifugal sedimentation granulometer. The structure of GCC was measured by X-ray diffraction. The result shows that low rotational speed and high-density media is conducive to get a product with smaller particle size and narrow size distribution; crystal plane (012) and (122) are more stable than (018) and (116).

• Periodical: Advanced Materials Research (Volume 997)
• Pages: 542-545
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.997.542
• Online since: August 2014
• Authors: Yan Ru Chen*, Yi Chen Lu, Xiao Min Lian, Chao Yang Li, Shui Lin Zheng
• Keywords: Crystal Structure, Grinding Limit, Planetary Ball Mill, Size Distribution, Ultrafine Grinding

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