摘要
在改装的恒界面池中采用微分传质系数研究了无机酸和金属盐液液萃取 (反萃 )体系动态相界面的传质速度对可控界面机械激励的响应 .作用于液液体系相界面区域的机械激励不仅显著影响相间区域的扩散渗透性 ,而且明显稳定了液液体系相间区域的传质条件 ,减小了实验误差 .微多相层的形成和发展决定相间动量与物质的传输特性 .用微多相层的概念解释了对相界面区域的激励有助于引发Marangoni表面对流及其他实验现象 .
The response of differential coefficient of mass transfer and differential rate of mass transfer in dynamic interface layers to the controlled mechanical interface activation has been investigated for inorganic acid (salt) liquid liquid extracting (reverse extracting) systems in the modified Lewis cell It can be seen from the results that periodic mechanical activation in interface layers not only affects the diffused penetrability in phase interfaces, enhances the process of mass transfer between phases, and improve the conditions of mass transfer in phases of liquid liquid systems, but also reduces the error of experiments The formation and development of differential polyphase layers determine the momentum and mass transfer characteristics in phases The result that the activation in phase interfaces is helpful for the formation of Marangoni spontaneous surface convection and other experimental phenomena in literatures are interpreted by using the idea of differential polyphase layers
出处
《化工学报》
EI
CAS
CSCD
北大核心
2000年第1期108-114,共7页
CIESC Journal
基金
国家教育部留学回国人员科研基金[教外留(1997)832号]
优秀青年教师基金[教人司(1999)5号]
重庆大学科研基金资助项目
关键词
界面现象
传质
萃取动力学
界面激励
interfacial phenomenon
mass transfer
extracting dynamics
activation of interfacial layer
