在盐酸体系中Ru(Ⅳ)的状态和萃取研究

STUDIES ON THE STATE AND THE SOLVENT EXTRACTION PROPERTY OF Ru(Ⅳ) IN HYDROCHLORIC ACID SOLUTION

摘要: 本文研究了在HCl>3M介质条件下RuCl_6~(2-)的稳定性,它能被>5％TNA-煤油液溶定量萃取。用斜率法求得萃合物组成为(R_3NH)_2RuCl_6。同时研究了TNA+N_(1923)、(TNA+DNA)、(TNA+ALQ)或(TNA+MIBK)对RuCl_6~(2-)的协萃效应并着重研究了(TNA+DNA)的协萃机理。在HCl>3M条件下,用等摩尔系列法求可能的萃合物为(R_3NH)(R_2NH_2)_3Ru_2Cl_(12)。协萃系数S=1.4。

Abstract: In this paper both the stability of RuCl6 2- ion in HC1 media and the solvent extraction mechanism of RuCl6 2- extracted with >5% trinonylamine ( TNA ) -kerosine from an aqueous phase of HC1 > 3M are studied.It is found that the composition of the extracted adduct is (R3NH)2RuCl8 by the usual slope method.The synergistic extraction effects of RuCl82-are observed in thse systems: with(TNA + N1923) , CTNA+DNA), CTNA+ALQ)and (TNA + MIBK) . The compositionof the adduct from synergistic extraction of (TNA+DNA) in 3M HC1 is postulated as (R3N H)(R2NH2)3 Ru2Cl12 by the method of isomolar series. The synergistic extraction coefficient of the synergistic reaction is found to be S=1.4.