中华医学超声杂志

应用化学 ›› 1992, Vol. 0 ›› Issue (3): 15-19.

• 研究论文 • 上一篇    下一篇

N503浸渍树脂吸萃金的性能及其应用

陈建荣1, 周志瑞2, 汤福隆2   

  1. 1. 浙江师范大学化学系, 金华 321004;
    2. 杭州大学化学系, 杭州
  • 收稿日期:1991-01-28 修回日期:1991-05-14 出版日期:1992-06-10 发布日期:1992-06-10

ADSORPTION OF GOLD BY IMPREGNATED RESIN N503 AND ITS APPLICATION IN ANALYSIS OF GOLD IN ORES

Chen Jianrong1, Zhou Zhirui2, Tang Fulong2   

  1. 1. Department of Chemistry, Zhejiang Normal University, Jinhua 321004;
    2. Department of Chemistry, Hangzhou University, Hangzhou
  • Received:1991-01-28 Revised:1991-05-14 Published:1992-06-10 Online:1992-06-10

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摘要： 研究了N,N-二仲辛基乙酰胺(N503)浸渍树脂从盐酸溶液中吸萃金的性能和机理。确定了吸萃物分子中金和N503之比为1∶2,金以AuCl4-形式被树脂吸萃。吸萃机理属离子缔合反应:2N503+H++AuCl4-=(N503)2·H+·AuCl4-用动态法试验了N503浸渍树脂对金矿石中金的分离。

关键词: 金, N,N-二仲辛基乙酰胺,浸溃树脂,吸附机理

Abstract: The characteristics and mechanism of the adsorption of gold in hydrochloric acid medium by impregnated resin N503 N,N-di(sec-octyl) acetamide have been studied. The ratio of gold to N503 in the adsorbate is 1:2. IR and chemical analysis show that the gold is adsorbed in form of AuCl4-. The adsorption is an ion association reaction: 2N503+H++AuCl4-=(N503)2·H+·AuCl4- Gold in ores has been seperated and determined by N503 satisfactorily.

Key words: gold, N, N-di(see-octyl)acetamide, impregnated resin, adsorption

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