引用本文:
张大力, 柯家骏, 卢立柱. 有机硫代磷酸与三辛胺作用及萃取锌的反应[J]. 物理化学学报,
2001, 17(02): 189-192.
doi:
10.3866/PKU.WHXB20010221
Citation: Zhang Da-Li, Ke Jia-Jun, Lu Li-Zhu. Mutual Action of Di(2ethlhexyl)dithiophosphoric Acid and Trioctylamine and the Mechanism of Zinc Ion Extraction by them[J]. Acta Physico-Chimica Sinica, 2001, 17(02): 189-192. doi: 10.3866/PKU.WHXB20010221
Citation: Zhang Da-Li, Ke Jia-Jun, Lu Li-Zhu. Mutual Action of Di(2ethlhexyl)dithiophosphoric Acid and Trioctylamine and the Mechanism of Zinc Ion Extraction by them[J]. Acta Physico-Chimica Sinica, 2001, 17(02): 189-192. doi: 10.3866/PKU.WHXB20010221
有机硫代磷酸与三辛胺作用及萃取锌的反应
English
Mutual Action of Di(2ethlhexyl)dithiophosphoric Acid and Trioctylamine and the Mechanism of Zinc Ion Extraction by them
Abstract:
The extraction of zinc by di(2ethylhexyl)dithiophosphoric acid(D2EHDTPA)trioctylamine(TOA) was investigated.Conductance titration and interfacial pressure measurement showed that when D2EHDTPA and TOA were mixed they reacted and formed an electrolyte of ionic pairs.The extraction of zinc by the electrolyte was of antisynergistic nature,and the reaction was Zn2＋＋2BHA(O) → ZnA2(O)＋2B(O)＋2H＋ (subscript (o) stand for “oil phase”).The zinc extraction was an endothermic reaction ,the heat of reaction was 130.1 kJ•mol－1.Some phenomena of interface concerned were also discussed.
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