Mathematical Simulation of the Crystallization Process in a Continuous Linear Crystallizer

被引：5
|
作者：
Veselov S.N. [1 ]
Volk V.I. [1 ]
Kashcheev V.A. [1 ]
Podymova T.V. [1 ]
Posenitskiy E.A. [2 ]
机构：
[1] A. A. Bochvar High-Technology Scientific Research Institute for Inorganic Materials, 5a Rogov Str, Moscow
[2] National Research Tomsk Polytechnic University, 30 Lenin Ave, Tomsk
来源：
Journal of Engineering Physics and Thermophysics | 2017年 / 90卷 / 1期
关键词：
crystallization of solution; linear crystallizer; mathematical simulation; processing of an irradiated nuclear fuel;
D O I：
10.1007/s10891-017-1549-2
中图分类号：
学科分类号：
摘要：
A mathematical model of the crystallization of uranium in a continuous linear crystallizer, designed for the crystallization separation of desired products in the processing of an irradiated nuclear fuel, is proposed. This model defines the dynamics of growth/dissolution of uranyl nitrate hexahydrate crystals in a nitric acid solution of uranyl nitrate. Results of a numerical simulation of the indicated process, pointing to the existence of stationary conditions in the working space of the crystallizer, are presented. On the basis of these results, the characteristic time of establishment of the stationary regime at different parameters of the process was estimated. The mathematical model proposed was validated on the basis of a comparison of the results of calculations carried out within its framework with experimental data. © 2017, Springer Science+Business Media New York.
引用
收藏
页码：140 / 150
页数：10
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