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胺类萃取酸是萃取化学研究中常见问题之一.关于三辛胺萃取酸的平衡,文献[1]已有记载,但它萃取酸的动力学研究却报道甚少,本文用恒界面池法研究了它对盐酸、硝酸和高氯酸的萃取动力学. 实验所用三辛胺(TOA)系进口分装,纯度≥99%;正辛烷(稀释剂),化学纯;盐酸、硝酸及高氯酸均为优级纯.水相酸的浓度用HM-20E型pH计(日本TOA)监测;动力学实验装置及仪器同前文.实验时先向恒界面池中加入100ml的含酸水相,然后加入一定体积的正辛烷,再小心加入一定体积的TOA浓溶液,使有机相总体积达100ml,同时记录pH
Amine extractant is one of the most common problems in the field of extraction chemistry.In terms of the balance of trioctylamine extraction acid, literature [1] has been reported, but its kinetics of acid extraction has been reported very little. In this paper, The extraction kinetics of hydrochloric acid, nitric acid and perchloric acid were studied.The polyoctylamine (TOA) used in the experiment was imported and packed with purity ≥99%, n-octane (thinner), chemically pure, hydrochloric acid, nitric acid and high The acidity of the aqueous phase was monitored by the HM-20E pH meter (TOA, Japan), and the kinetic experimental equipment and instruments were the same as those described in the previous paragraph. The experiments were performed by adding 100 ml of an acid-containing aqueous phase , Then add a certain volume of n-octane, and then carefully add a certain volume of TOA concentrated solution, the total volume of the organic phase up to 100ml, while recording the pH