中华医学超声杂志

应用化学 ›› 1992, Vol. 0 ›› Issue (1): 106-109.

• 研究简报 • 上一篇    下一篇

Au(Ⅲ)、Ag(Ⅰ)与巯基乙酰苯胺的配合物及其在贵金属回收中的应用

王锦化, 牛德仲, 宋保林   

  1. 徐州师范学院化学系, 徐州 221009
  • 收稿日期:1991-01-14 修回日期:1991-08-16 出版日期:1992-02-10 发布日期:1992-02-10
  • 基金资助:
    江苏省教委自然科学基金

THE COORDINATION COMPOUNDS OF Au(Ⅲ), Ag(Ⅰ) WITH MERCAPTOACETANIL AND THEIR APPLICATION IN RECOVERY OF PRECIOUS METALS

Wang Jinhua, Niu Dezhong, Song Baolin   

  1. Department of Chemistry, Xuzhou Teacher's College, Xuzhou 221009
  • Received:1991-01-14 Revised:1991-08-16 Published:1992-02-10 Online:1992-02-10

PDF

454

被引次数

2

摘要：

早期巯基乙酰苯胺(mereaptoacetaniⅠ简写MAA)曾作分析试剂使用[1,2],其Au(Ⅰ)配合物的合成及在医疗中的应用已有报道[3,4]。但它的Au(Ⅲ)配合物的合成、表征,Au(Ⅰ)、Ag(Ⅰ)配合物的表征以及它们通过高温裂解法用于回收贵金属的工作尚未见报道。本文对此进行了一些试探研究。

关键词: Au(Ⅱ), Ag(Ⅰ), 巯基乙酰苯胺, 配合物, 回收

Abstract:

The properties of the coordination compoands of Au(Ⅲ), Au(Ⅰ) and Ag(Ⅰ) with mercapto-acetanil (MAA or HL) are reported.The AuL3 type of the compounds is synthesized for the first time and characterized by elemental analysis, UV, IR and TG-DTA. The ligand (MAA) selectively chelates Au(Ⅲ) from acidic solution or aqua regia containing ions such as Ca, Mg, Cd, Mn, Co, Ni, Cu, Zn and Fe. The formed AuL3. then converts into Au(Ⅰ)L in absolute ethyl alcohol. The gold and silver were recovered through high temperature decomposition of the AuL3 and AgL, respectively. The recovery ratio for gold is over 97%, for silver over 98%. The purity of the obtained gold is 99.89～99.98%. The cost of the method is much lower than that of using zinc pyridinethione as a chelating agent.

Key words: Au(Ⅲ), Ag(Ⅰ), mercapto-acetanil, coordination compound, recouery

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