Distribution of Hydrogen Isotopes between Phases at Vapor-Liquid Equilibrium in Aqueous Salt Solutions

被引：5
作者：
Kulov, N. N. [1 ]
Polkovnichenko, A. V. [1 ]
Lupachev, E. V. [1 ]
Voshkin, A. A. [1 ]
Magomedbekov, E. P. [2 ]
机构：
[1] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia
[2] Mendeleev Univ Chem Technol Russia, Moscow 125047, Russia
来源：
THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING | 2020年 / 54卷 / 01期
基金：
俄罗斯科学基金会;
关键词：
isotope separation; phase equilibrium; deuterium; separating agent; separation coefficient; FRACTIONATION FACTORS; WATER-MOLECULES; OXYGEN; DISTILLATION; SYSTEMS; H2O; D2O;
D O I：
10.1134/S0040579520010108
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A single separation effect between deuterium and protium was studied experimentally under phase equilibrium conditions in a water vapor-water salt solution system at temperatures from 59 to 94 degrees C. The vapor-liquid equilibrium was investigated by the dynamic method in a Bushmakin device. The presence of urea in water significantly increased the separation coefficient alpha(L-V) in the given temperature range. The characteristic increase in the relative volatility coefficient of the hydrogen isotopes of water remained unchanged at lower temperatures in the presence of salts. The isotope salt effects, both negative and positive, increased with the salt concentration.
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页码：132 / 138
页数：7
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