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Optimized experimental design for natural clinoptilolite zeolite ball milling to produce nano powders |
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| Authors: | Amir Charkhi Mohammad Kazemeini |
| Affiliation: | a Chemical & Petroleum Eng. Department, Sharif University of Technology, Tehran, Iran b SPAG Zeolite R&D Group. Technology Incubation Centre, Science and Technology Park of Tehran University, Tehran, Iran c Department of Chemical and Biochemical Engineering, Faculty of Engineering, The University of Western Ontario, London, Ontario, Canada N6A 5B9 |
| Abstract: | Nano powder of natural clinoptilolite zeolite was mechanically prepared by using a planetary ball mill. Statistical experimental design was applied to optimize wet and dry milling of clinoptilolite zeolite. To determine appropriate milling conditions with respect to the final product crystallinity, particle size and distribution, different milling parameters such as dry and wet milling durations, rotational speed, balls to powder ratio and water to powder ratio (for the wet milling) were investigated. Laser beam scattering technique, scanning electron microscopy and X-ray diffraction analyses were carried out to characterize samples. Results showed that larger than 1 mm particle size of clinoptilolite powder may mechanically be reduced into the size range of less than 100 nm to 30 μm by means of planetary ball milling. |
| Keywords: | Experimental design Planetary ball mill Natural zeolite nano powder Clinoptilolite |
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