【摘要】 报道了二 (2 乙基己基 )二硫代磷酸 (D2 EHDTPA)从高氯酸体系中萃取钯的机理 .结果表明 ,钯的萃取率随pH的增大而增大 ,与高氯酸根离子浓度无关 .采用斜率法测得萃合物组成为PdL2 .更多还原

【Abstract】 The extraction mechanism of palladium from perchloric acid medium by di 2 ethlhexyldithiophoric acid(D 2EHDTPA)?has been studied. The results show that extraction rate of palladium increase with increasing of the pH, and no relationship with concentration of perchlorate.The composition of the extraction is PdL 2 as determined by slope methed. The extraction mechanism of palladium with D 2EHDTPA based on UV vis spectra is proved to be chelate extraction reaction as 2HL (O) +Pd 2+ (A) =PdL 2(O) +2H + (A) .更多还原