【摘要】 本工作测定了四次乙基五胺-环氧氯丙烷阴离子交换树脂对酸的交换吸附速率,包括: 1.用不同配料比合成的树脂,对3,5-二硝基苯甲酸的交换吸附; 2.用一定配料比不同粒度的330对乙酸的交换吸附; 3.用一定配料比的330对数种酸(甲酸、乙酸、己酸、盐酸及3.5-二硝基苯甲酸)的交 换吸附; 4.弱碱330、叔胺化330、季铵化330及强碱201对3,5-二硝基苯甲酸的交换吸附; 5.数种弱碱330对3,5-二硝基苯甲酸的交换吸附。 本文还比较了两种测试交换吸附速度的方法:连续取样法及分批法.实验表明,当被交换吸附的酸浓度若维持在0.032N左右时两种方法所得到的曲线基本上是一致的。更多还原

【Abstract】 The exchange velocities of some anion exchange resins were determined. It includes the following:(1) 3,5-Dinitrobenzoic acid was adsorbed by the exchanger made by the condensation of one mole of tetraethylene pentamine and different amounts (2.5-3.0 moles) of epichlorohydrin;(2) Acetic acid was adsorbed by the exchanger of different particle size (0.315-0.630 mm) ;(3) Different acids such as formic, acetic, caproic, hydrochloric, and 3,5-dinitro-benzoic acid were adsorbed by the exchangers;(4) 3,5-Dinitrobenzoic acid was adsorbed by the exchangers of tetraethylene pen-tamine-epichlorohydrin and its alkylated and quaternized products;(5) 3,5-Dinitrobenzoic acid was adsorbed by several modified resins of tetraethylene pentamine-epichlorohydrin.Two different methods (the limited batch method and the batch method) were used to determine the exchange velocity of the anion exchange resins, the results showed that the exchange rates were identical when the concentration of the hydrochloric acid was maintained at about 0.032 N.更多还原