Abstract

ABSTRACT The separation of quinoline and iso-quinoline by dissociation extraction has been studied using toluene and aqueous hydrochloric acid as solvents. A laboratory scale multistage countercurrent mixer-settler unit was employed. Details are presented for the design and operation of this equipment The results for the separation of the quinoline and iso-quinoline mixture using a ten stage extractor are presented. Single stage equilibrium data and equilibrium equations reported previously have been used to develop a stage to stage calculation procedure and applied to determine flow rates and conjugate phase compositions in a ten stage unit. Experimental and calculated results for the concentrations of quinoline and iso-quinoline are compared and found to give good agreement.

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