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本文首次较系统地研究环状碳酸酯类萃取剂．合成这类萃取剂中６个．对这类萃取剂萃取性能做了全面、细致的测试．所测的参数包括：萃取速度、分相时间、选择性、稳定性、反萃性能、pＨ值的影响、稀释剂的影响等．证明这类萃取剂萃取金时．具有很好萃取与反萃动力学性质及选择性好，容量大等优点，这些都证明这一系列萃取剂有很好的应用前途，并指出这类萃取剂分子设计的思路．对这类萃取剂的萃取机理做了探讨，证明是■盐萃取机理，萃合物组成为：还对萃取剂的选择性－性能关系做了探讨．
This article for the first time a more systematic study of cyclic carbonate extractant. Six of these extractants were synthesized. This kind of extractant extraction performance made a comprehensive and detailed test. The measured parameters include: extraction speed, phase separation time, selectivity, stability, stripping performance, pH value, the impact of thinners and so on. This extract proved gold extraction time. Has good extraction and stripping kinetic properties and good selectivity, large capacity, which proves that this series of extractant has a good future, and points out the idea of molecular design of such extractants. The extraction mechanism of this kind of extractant is discussed, which proves to be ■ salt extraction mechanism, and the composition of the extract is as follows: the selectivity-performance relationship of extractant is also discussed.