Relations of extraction mass-transfer and micromixing characteristics in an impinging stream-rotating packed bed

To find the relationship of extraction and micromixing effect in impinging stream-rotating packed bed(IS-RPB),the extraction mass-transfer performances and micromixing characteristics were experimentally investigated under the same operating condition.The mass transfer performances of IS-RPB were experimentally studied with two extraction systems of water-phenol-tributyl phosphate(in kerosene) and kerosene-benzoic acid-water.The micromixing characteristics of IS-RPB were studied by using the competitive and consecutive reaction between α-naphthol and diazotized sulphanilic acid.The experimental results show that the micromixing characteristics are closely related with the extraction mass-transfer performances.The extraction mass transfer characteristics increase with the augment of micromixing performance in experimental conditions.Through the dimensional analysis methods,the correlative expressions were proposed for the influence of equipment characteristics and operation parameters of IS-RPB the on extraction mass-transfer speed.