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Abstract. One of the most energyintensive processes for producing submicron range calcite is stirred media mill. In the present work, numerous operating parameters such as solid mass fraction, grinding media size, media filling ratio, and grinding time have been investigated using a vertical type stirred media mill.

As expected, the fineness of the ground product increased with increase of milling time and specific energy input. For the production of a surface mean size of calcite particles below 50 nm, the energy input is approximately 1000 kWh/t. Silica nanoparticles with the same surface mean size required an energy input of about 4000 kWh/t.

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Grinding of calcite suspensions in a stirred media mill: Effect of operational parameters on the product quality and the specific energy Article in Powder Technology 255 · .

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This paper aimed to investigate the effects of monosized (, and mm) and bimodal ( mm) media size grinding design on wet grinding of calcite (CaCO 3, d 50 = µm) powders to produce submicron particles, and it was performed in a labscale (750 ml) stirred media mill.

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Figure 4. Particle size distribution in grinding with Spherical Balls (5 tph capacity) Figure 5. Particle size distribution in grinding with Cylpebs (5 tph capacity) 4. Conclusions In this study, industrial scale grinding tests were carried out for the fabrication of nano calcite. The normal capacity of the mill used in the tests is 20 tph.

One of the most energyintensive processes for producing submicron range calcite is stirred media mill. In the present work, numerous operating parameters such as solid mass fraction, grinding ...

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