To determine the influence of grinding conditions on the HBSA activity, HBSA particle sizes were determined after calcining at 600 °C for 2 h and grinding for 0, 0.5, 1, 2, and 3 h (see Fig. 7). Here, Dv10, Dv50, DV80, and DV90 denote the particle sizes corresponding to the cumulative passing rates of 10%, 50%, 80%, and 90%, respectively ...
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