A contactor for studying mass transfer with reaction in liquid‐liquid systems

Abstract

A contactor has been developed which is especially suitable for experimental investigations of mass transfer with chemical reaction in liquid‐liquid systems. Its function has been tested with the reaction between tetrachlorohydroquinone (dissolved in a mixture of 2‐octanone and carbon tetrachloride) and ceric sulfate (in 0.5M sulfuric acid). In the contactor described in this work the kinetics of this reaction can be investigated in the very slow reaction regime (kinetic regime). It is also possible easily to determine whether a reaction takes place to an appreciable extent in only one or both phases.

Modified Contactor for Experimental Studies of Mass Transfer and Chemical Reaction across a Liquid−Liquid Interface

“…It was found that its configuration provided more instability than what they claimed (Al-Dahhan, 1988). Landau and Chin (1977) Its configuration is similar to that of the Bulicka and Prochazka cell (1976). Both phases are independently agitated using central shafts (the shaft for the lower section is mounted inside the shaft for the upper section).…”

“…Many different types of experimental equipment for mass-transfer and chemical reaction studies have been developed for both liquid-liquid and gas-liquid systems such as stirred cell, packed-bed column, rotating disk, laminar jets, wetted wall column, string of disks or spheres, etc. (Mills et al, 1992;Al-Dahhan, 1988;Gordon and Sherwood, 1954;Lewis, 1954;Mayers, 1961;McManamey, 1961;Prochazka and Bulicka, 1971;Bulicka and Prochazka, 1976;Landau and Chin, 1977;Asai et al, 1983;Bart et al, 1990;Hancil et al, 1978;Colburn and Welsh, 1942;Vermijs and Kramers, 1954;Murdoch and Pratt, 1953;Bauer, 1974;Freeman and Tavlarides, 1980;Ward and Quinn, 1964;Duda and Vrentas, 1968;Quinn and Jeannin, 1961;Levenspiel and Godfrey, 1974;Danckwerts and Gillham, 1966;Danckwerts and Alper, 1975;Versteeg et al, 1987;Roberts and Danckwerts, 1962;Davidson and Cullen, 1957;Danckwerts, 1970;Stephens and Morris, 1951;Lynn et al, 1953;Bjerle et al, 1972;Scriven and Pigford, 1958;Raimondi and Toor, 1959;Nijsing et al, 1959;Chaing and Toor, 1959;Danckwerts and Kennedy, 1954;Govindan and Quinn, 1964). Mixed-liquid contactors are preferred since they more closely approach the operating conditions of industrial practice involving the mixing of liquid phases over ver...…”

Kinetics of Formation and Transport Resistances of Zirconium-Monobutyl Phosphate Films

“…stirring in the two phases would be modified by the existence of the film.Essentially the interaction of the Downloaded by [Columbia University] at 11:04 05 February 2015 794 FREEMAN ET AL.EaJERrnLApparatusThe contactor used i n these experiments is a modified Lewis cell based on the design of Landau and Chin(10). apparatus.…”