Micromixing of a Two Phase System in a Stirred Tank with Multiple Impellers
Micromixing of a Two Phase System in a Stirred Tank with Multiple Impellers作者机构：Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China
出 版 物：《Advances in Materials Physics and Chemistry》 (材料物理与化学进展（英文）)
年 卷 期：2012年第2卷第4期
页 面：150-153页
学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
主 题：Micromixing Parallel Reactions Two Phases Multiple Impellers
摘 要：The competitive iodide/iodate reaction scheme was used to ascertain the micromixing in the stirred solid-liquid systems. Two different glass beads from 450 to 1250 μm were tested. The effect of solid particles on reaction selectivity with multiple impellers at different feed points has been investigated. It was confirmed that glass beads as a second phase were suitable for the study. The segregation index has changed significantly only for the medium-sized particles at relatively high solid holdups. The cloud formation was clearly observed for the medium-sized particles at a concentration of 12.12 wt. %. When feeding into the clear liquid above the cloud, the value of the segregation index increased significantly. However, in the presence of particles of 1-1.25 mm, the influence on the selectivity was negligible when the agitation speed was increased.
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