Abstract
Authors indicated previously that the interfacial rate process was significant in low concentration range of long-chain alkylamine for the extraction of hydrochloric acid in a horizontal rectangular channel contactor. This paper is concerned with the effects of interfacial rate process for the same extraction system in a stirred transfer cell.
It was found from the analysis of the initial rate of extraction that the interfacial rate process was significant in the range of concentration of long-chain alkylamine lower than 0.1mol/l, while in the range of concentration of the amine higher than 0.2mol/l the interfacial rate process was assumed to be an instantaneous irreversible reaction.
These experimental results were interpreted by the diffusion model, taking account of the interfacial rate process expressed by (1, 2) order irreversible reaction with respect to the interfacial concentrations of hydrochloric acid and long-chain alkylamine.
