膜分散、膜聚合及微尺度液滴传质性能的基础研究

In this project the techniques of membrane dispersion and membrane coalescense have been applied to the field of solvent extraction. A new membrane dispersion extraction process was developed. The operation conditions and the membrane structures were investigated and the mass transfer mechanism was studied. Meanwhile some new membrane dispersion extraction equipments have been designed. The experimental results show that membrane dispersion technique can make the two-phase mixed at the micrometer level. The mass tranport can be finished very fast, even less than 1 second. And the mass transfer coefficients can reach 10-3m2/s, which is much higher than that in a traditional extraction process. The membrane dispersion extraction process has the advantages of less energy cost, high mass transfer coefficient, simple equipment structure, easy operation, and so on.

材料对液体分散与聚合有相当的影响，本项目将这种影响应用于传质分离过程中，提出一种新型的膜与萃取分离过程耦合的传质分离过程；在系统研究膜材料、膜结构、体系物性及两相流动对于液体分散影响机理的基础上，阐明膜分散及膜聚合的基本原理；探索微尺度液滴分散体系的传递特性；发展出一种具有工业应用前景的新型膜萃取技术。