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研究了铂 (Ⅱ ) 三氯亚锡酸络合物在丙醇 硫酸铵双水相萃取体系中的分配行为。研究表明 ,影响分配比的因素有酸度、氯化亚锡浓度及硫酸铵用量 ,铂 (Ⅱ )的分配比随盐酸及氯化亚锡浓度的增加而增加 ;萃取的最佳条件是 :氯化亚锡浓度 0 0 2mol·L- 1 ,盐酸浓度0 3 6mol·L- 1 ,硫酸铵用量 3 0 %。使用斜率法测定了萃合物的组成是 :Pt (Ⅱ )∶SnCl3- ∶ROH+ 2 =1∶2∶2。通过红外光谱、吸收光谱等实验事实提出萃取是基于离子缔合机理。
The distribution behavior of platinum (Ⅱ) trichlorostannate complex in propanol ammonium sulfate aqueous two-phase extraction system was studied. The results showed that the factors affecting the distribution ratio of acidity, stannous chloride concentration and the amount of ammonium sulfate, platinum (Ⅱ) distribution ratio increases with the concentration of hydrochloric acid and stannous chloride increased; extraction of the best conditions are: chlorination Stannous concentration 0 0 2mol·L-1, hydrochloric acid concentration 0 3 6mol·L-1, ammonium sulfate dosage 30%. The composition of the extract was determined using the slope method as follows: Pt (II): SnCl3-: ROH + 2 = 1: 2: 2. Based on the experimental results of infrared spectrum, absorption spectrum and so on, it is suggested that the extraction is based on the ion association mechanism.