合成了异戊基苯并噻唑亚砜(ABSO),研究了盐酸介质中ABSO萃取Pd(Ⅱ)的机理.考察水相H+浓度和萃取剂浓度对钯萃取的影响, 采用斜率法、红外光谱和核磁共振H谱法确定了萃合物的组成及萃取平衡的机理.结果表明:低酸度条件下,H+浓度对钯的分配比无影响,ABSO以中性配位萃取机理萃取Pd(Ⅱ),并通过苯并噻唑环上的氮原子与Pd(Ⅱ)配位形成萃合物PdCl2(ABSO)2.
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