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一、基本原理萃取的基本原理,就是利用与水相不混溶的有机溶剂从水相(溶液)中选择性地提取某成分的过程。其实质是溶质在两种不相混溶的液相中的分配(扩散)过程。萃取法的基本程序为萃取与反萃取。萃取是有机溶剂选择性地从溶液中提取某些成分,即溶质从水相中扩散到有机相中去;反萃取是溶质从有机溶剂(有机相)扩散到新水相中去。用化学符号R_3N表示N_(235)萃取剂,以工业氨水为反萃取剂,萃取钼铼过程中的
First, the basic principle Extraction of the basic principle is the use of water-immiscible organic solvent from the aqueous phase (solution) in the selective extraction of a component of the process. Its essence is the distribution (diffusion) process of solutes in two immiscible liquid phases. Extraction of the basic procedures for extraction and back extraction. Extraction is the organic solvent selective extraction of certain components from the solution, that is, solute diffusion from the aqueous phase to the organic phase; stripping is the solute diffusion from the organic solvent (organic phase) to the new water phase. With the chemical symbol R_3N that N_ (235) extractant, industrial ammonia as the stripping agent extraction molybdenum rhenium process