季铵盐萃取铀的多核萃合物的研究

STUDY ON EXTRACTION OF THE POLYNUCLEAR COMPLEX OF URANIUM BY QUATERNARY AMMONIUM SALT.

摘要: <正> 关于铀的多核萃合物的研究目前尚未见文献报道。本文研究了季铵盐-仲醇-煤油溶液从近中性的碳酸铵溶液中萃取铀的机理。用饱和容量法、斜率法、连续变量法、X射线衍射分析法和红外光谱法测定了萃合物的组成为(R_4N)_2U_n_O_(3n+1);萃取反应为:

Abstract: In a study of uranium extraction by a quaternary ammonium salt-secondary alcohol in kerosene from nearly neutral ammonium carbonate solution, the composition of the extracted complex is determined by five different methods and found to be (R4N)2UnO3n+1. The Following extraction reaction is proposed:nUO(CO3)4 3+(n + l)H2O + (n-2)H++2R4NCl (R4N)2UnO3n+1+3nHCO3-+2Cl-n=2, 3, 4, 5, 6 Furthermore, the following hydrolysis reaction of uranyl ion is proposed: