Cold Model Study on Mass Transfer between Different Phases in a Mechanically Stirred Vessel
The effects of operating conditions on liquid/liquid or solid/liquid mass transfer rate in a mechanically stirred vessel were investigated.Benzoic acid transfer rate from dispersed liquid paraffin to continuous ion-exchanged water was measured in a liquid/liquid system,whereas ion-exchanged reaction rate between pearlite particles on Na+ and dilute hydrochloric acid solution in a solid/liquid system.Both of liquid/liquid and solid/liquid mass transfer rates strongly depended on the mixing patterns between different phases.They were kept to be nearly constant in the region Ⅰ where the liquid/liquid or solid/liquid interface did not touch a impeller,monotonically increased in the region Ⅱ where the phase interface attained at impeller position except near the region Ⅲ where gas/continuous liquid interface arrived at the impeller,and their increasing rates decreased in the latter part of the region Ⅱ and in the region Ⅲ.The solid/liquid mass transfer rate changed less than the liquid/liquid one in the region Ⅱ.
mechanical stirring mass transfer rate liquid/liquid solid/liquid
Yoshiei KATO Shuhei HORIUCHI Ryutaro SHIBA Azhar UDDIN
Graduate School of Environmental and Life Science,Okayama University,Okayama 700-8530,Japan
国际会议
the 6th International Congress on the Science and Technology of Steelmaking,ICS2015(第六届国际炼钢科技大会)
北京
英文
53-56
2015-05-12（万方平台首次上网日期，不代表论文的发表时间）