| 无机阴离子对丙酮酸络合萃取的影响 |
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| 引用本文： | 姚忠,周华,韦萍,欧阳平凯.无机阴离子对丙酮酸络合萃取的影响[J].陶瓷科学与艺术,2001(4). |
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| 作者姓名： | 姚忠 周华 韦萍 欧阳平凯 |
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| 作者单位： | 南京化工大学制药与生命科学学院 江苏南京210009
(姚忠，周华，韦萍)，南京化工大学制药与生命科学学院 江苏南京210009(欧阳平凯) |
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| 摘 要： | 采用三元模拟体系 ,以三辛胺为萃取剂 ,在不同离子类型及离子强度下对丙酮酸的络合萃取过程进行了研究 ,证实无机阴离子的存在对萃取效果产生极大的消极影响 ;通过理论分析及实验验证 ,对于无机阴离子的作用机理进行了讨论 ,初步推测无机阴离子可能是通过同离子竞争 ,削弱丙酮酸根离子与络合剂的离子对缔合作用 ,从而使萃取过程只能以氢键缔合方式进行
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| 关 键 词： | 丙酮酸 无机阴离子 萃取 氢键缔合 离子对缔合 |
The influence of inorganic anion strength on complex extraction of pyruvic acid |
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| YAO Zhong,ZHOU Hua,WEI Ping,OUYANG Ping-kai.The influence of inorganic anion strength on complex extraction of pyruvic acid[J].Ceramics Science & Art,2001(4). |
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| Authors: | YAO Zhong ZHOU Hua WEI Ping OUYANG Ping-kai |
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| Abstract: | Trioctylamine was chosen as the extractant in the extraction of puruvic acid. Ch emical complex ation of pyruvic acid was studied under varies ion styles and strengths. The res ult shows that the effects of extraction will decrease sharply with the increase of negative inorganic ion concentration. The mechanism that ion-pair formation was weaken by ion competition and extraction was carried out only based on H-b onding instead was proposed. |
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| Keywords: | pyruvic acid inorganic ion extraction H-bonding ion-pair formation |
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