具有静态混合单元的气泡分步结晶过程研究  

Study on Crystallization of Bubble Crystallizer with a Static Mixer

作　　者：张卫江[1] 姜雅洁[1] 孙兴华[1] Qu Hongmei 曲红梅[1] 

机构地区：[1]天津大学化学工程研究所,,天津300072 [2]Chemical Engineering Research Institute,Tianjin University,

出　　处：《化学工程》2001年第2期23-25,共3页Chemical Engineering(China)

摘　　要：在气泡分步结晶工艺基础上 ,开发了静态混合气泡结晶技术来提纯均四甲苯。实验表明 ,将静态混合单元引入传统气泡结晶器后 ,拓宽了有效鼓泡气速范围 ,明显改善了结晶过程气体均布及压强均布等状况 ,强化了传热、传质过程 。A bubble crystallizer with a static mixer was developed on the basis of multistage fractional crystallization. The high purity 1,2,4,5-tetramethyl benzene was obtained from the crude feed through crystallization bubbling and static mixer fractional crystallizer. The experimental results showed that the efficient scope of gas velocity was greatly enhanced. The technology promoted the distribution of bubble and pressure, and enforced the process of heat and mass transfer. So the purity was increased.

关 键 词：均甲四苯 多级分步结晶 静态混合单元 气泡结晶器 

分 类 号：TQ026[化学工程]