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以甲苯为稀释剂研究了N,N－二乙基十八酰胺（DEODA）从硝酸介质中萃取铀的可行性。考察了水相酸度、萃取剂浓度对萃取平衡的影响，求得了萃取平衡常数。借助红外光谱确定了萃合物的组成和结构；考察了温度对萃取平衡的影响，得到了萃取化学反应的热力学常数。DEODA萃取体系不出现三相，是核燃料处理中有前途的一种萃取剂。
The feasibility of extraction of uranium from nitric acid by N, N-diethyloctadecanamide (DEODA) was studied with toluene as diluent. The effects of aqueous phase acidity and extractant concentration on extraction equilibrium were investigated. The equilibrium constants of extraction were obtained. The composition and structure of the complex were determined by infrared spectroscopy. The effect of temperature on the extraction equilibrium was investigated. The thermodynamic constants of the extraction chemistry were obtained. DEODA extraction system does not appear three-phase, nuclear fuel processing is a promising extractant.