对甲苯氧基联苯桥联双苯并-15-冠-5分离锂同位素的能力  

SEPARATIVE ABILITY OF p -METHYLPHENOXY LINKED DISCROWN ETHER TO LITHIUM ISOTOPES

作　　者：方胜强[1] 傅立安[1] 高志昌[2] 

机构地区：[1]兰州大学现代物理系,兰州730000 [2]中科院兰州化学物理研究所,兰州730000

出　　处：《核化学与放射化学》1992年第2期111-113,共3页Journal of Nuclear and Radiochemistry

摘　　要：测定对甲苯氧基联苯桥联双苯并-15-冠-5(简称双冠L)的氯仿溶液萃取硫氰酸钾过程中对锂的同位素分离能力。确定其25℃时的εp为1.74×10^(-2)。此值比相应的苯并-15-冠-5在相同条件下的εp值(2.2×10^(-2))小。由此可见,当单环冠醚组成多元物后,它的锂同位素分离能力将下降。The lithium isotope separation ability in extractive process of LiSCN with CHCl3 solution of p-methylphenoxy linked biscrown ether is determined. The characteristic separative ability εp is 1. 74×10-2 for this system at 25℃, and smaller than that of B15C5 under the same conditions. Thus it can be seen that the lithium isotope separation ability of monocyclic crown ether will decrease as polybasic product is formed from the monomers.

关 键 词：冠醚 锂同位素 液-液萃取 

分 类 号：TL25[核科学技术—核燃料循环与材料]