Theoretical Analysis of Periodic Processes of Extraction-Chromatographic Separation in a Closed Cascade of Apparatuses

摘要

A periodic method of extraction-chromatographic separation of a mixture of components in a closed cascade of mixer-settler extractors was proposed. The processes of extraction separation in a closed cascade operating in the chromatography mode were analyzed. The theoretical foundations of the method were developed, which are necessary for modeling of extraction-chromatographic separation processes; examples of modeling different variants of such processes were given. The proposed separation method can be especially useful in the development of technologies for obtaining pure and special-purity substances, in particular, in the production of rare earth metals.