应用化学 ›› 1990, Vol. 0 ›› Issue (5): 72-76.

• 研究论文 • 上一篇    下一篇

三正辛基氧化膦萃取钯的研究

杨子超, 王秀山, 张安运, 阎居梅   

  1. 陕西师范大学化学系 西安 710062
  • 收稿日期:1989-07-11 修回日期:1990-03-17 出版日期:1990-10-10 发布日期:1990-10-10

EXTRACTION OF PALLADIUM WITH TOPO

Yang Zichao, Wang Xiushan, Zhang Anyun, Yan Jumei   

  1. Department of Chemistry, Shaanxi Normal University, Xi'an 710062
  • Received:1989-07-11 Revised:1990-03-17 Published:1990-10-10 Online:1990-10-10

摘要: 本文研究了用三正辛基氧化膦(TOPO)煤油溶液从盐酸介质中萃取钯及用硫脲反萃钯的条件。用等摩尔系列法、饱和法、化学分析法和斜率法确定了萃合物的组成。用紫外-可见光谱法探讨了TOPO萃取钯的机理。

关键词: 钯, 三正辛基氧化膦(TOPO), 萃取机理

Abstract: In this paper, the extraction of palladium with triNoctyl phosphine oxide(TOPO)from hydrochloric acid solution and its back-extraction with thiourea have been studied, The composition of the extraction complexes determined experimentally by the methods of equi- molal series, saturation,solpe and chemical analysis. The extraction mechanism of palladium with TOPO were discussed through UV-VIS spectrometric determination, The extraction process can be expressed as: 2PdCl42-(a)+2TOPO(o)⇔Pd2Cl4·2TPPO(o)+4Cl-(a)

Key words: Palladium, tri-n-oxtyl phosphine oxide, extraction, mechanism