中国化学工程学报(英文版)
中國化學工程學報(英文版)
중국화학공정학보(영문판)
CHINESE JOURNAL OF CHEMICAL ENGINEERING
2004年
1期
1-6
,共6页
唐晓津%骆广生%李洪波%汪家鼎
唐曉津%駱廣生%李洪波%汪傢鼎
당효진%락엄생%리홍파%왕가정
pulsed-sieve-plate column%coalescence-dispersion%hydrodynamics%holdup
A study on two-phase flow characteristics in a coalescence-dispersion pulsed-sieve-plate extraction column of 150mm in diameter was carried out with a working system of 30% tri-butyl-phosphate (TBP) (in kerosene)nitric acid-water. The influence of operation conditions on the holdup of the dispersed phase was investigated.According to the analysis of the experimental data, there was a turning point on the curve of ln(Vs) versus ln(1-φ)under certain pulse intensity. When the holdup is higher than the value at the turning point, the two-phase flow characteristics can be described with the modified Pratt's equation, otherwise a new relation in the form of φ =1/2.75uk (uc + 4ud) may be used, which is proposed by this study.
