USE OF AMINO GROUP-CONTAINING NEUTRAL PHOSPHINE EXTRACTION AGENT FOR EXTRACTION AND SEPARATION OF THORIUM, AND METHOD

摘要

A use of an amino group-containing neutral phosphine extraction agent having formula I for the extraction and separation of thorium, and a thorium extraction and separation method for the use. R1 and R2 are each independently selected from C1-C12 alkyl groups, R3 and R4 are each independently selected from C1-16 alkyl groups and hydrogen, and n is an integer from 1 to 8.