This work furthers the development of counter-current chromatography as an industrial separation process method. It was demonstrated that the industrial counter-current chromatography methods, in particular, for the separation groups of rare earth metals, can be implemented in a modified cascade of centrifugal mixer-settler extractors. The retention behavior of rare earth elements (samarium, europium, gadolinium, terbium, dysprosium and yttrium) on the pilot chromatographic unit consisting of 70 serially connected centrifugal mixer-settler extractors was experimentally studied under isocratic elution conditions using the mixture of 30 vol.% Cyanex^Ⓡ572 + 10 vol.% tributylphosphate in a hydrocarbon diluent as the stationary phase and aqueous nitric acid as the mobile phase. Theoretical analysis of experimental studies showed an acceptable agreement between the assumptions of the theory and experimental results.

这项工作进一步促进了逆流色谱作为工业分离方法的发展。已经证明，工业逆流色谱法，特别是用于稀土金属分离基团的工业逆流色谱法，可以在离心式混合沉降器提取器的改进级联中实施。在等度洗脱条件下，使用30％（体积）的混合物，通过实验研究了稀土元素（sa，euro，g，ter，ter和y）在由70个串联的离心混合沉降器组成的中试色谱仪上的保留行为。 CYANEX ^ⓡ烃稀释剂中的572 + 10体积％磷酸三丁酯作为固定相，硝酸水溶液作为流动相。实验研究的理论分析表明，在理论假设和实验结果之间可以接受。