对电解法制备铀(Ⅲ)诸因素的探讨和U~(3+)与H~+反应的动力学研究

STUDY OF THE PREPARATION OF URANIUM (Ⅲ)BY ELECTROLYSIS AND KINETICS OF REACTION OF U~(3+) WITH H~+

摘要: 本文对控制电位电解法制备U~(3+)过程中影响还原率和还原速度的各种因素进行了探讨并认为电解池常数β是主要因素,β越大,还原率和还原速度越高。还用控制电位电解法研究了H~+和U~(3+)反应的动力学。实验表明,该反应是一个二级反应,可以表示为:

Abstract: In studying the factors effecting the percentage and rate of reduction of tetravalent uranium to trivalent state by controlled potential electrolysis, it is.found that the main factor is the cell constant β, which depends on the design of cell system. The bigger theβ, the higher the percentage and rate of the reduction. The kinetics of redox reaction of U3+ ions with H+ ions in hydrochloric acid determined by controlled potential electrolysis follows a second order reaction and can be represented as.