Thermal Dissociation of the Complex BF3 center dot D and Boron Isotope Separation in the System BF3-BF3 center dot CH3NO2

被引：2

作者：

Khoroshilov, A. V. ^{[1
]}

Lizunov, A. V. ^{[1
]}

Stepanov, A. V. ^{[1
]}

Cherednichenko, S. A. ^{[1
]}

机构：

[1] Mendeleev Russian Univ Chem Engn, Moscow, Russia

来源：

RADIOCHEMISTRY | 2009年 / 51卷 / 04期

关键词：

D O I：

10.1134/S1066362209040122

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Thermal flow reversal and efficiency of interphase isotope exchange in the course of multiplication of the single effect of boron isotope separation in the two-phase system gaseous BF3-liquid complex of BF3 with nitromethane in an isotope exchange column at atmospheric pressure and 293 K was studied. The completeness of flow reversal is acceptable for concentrating B-10. Approximately 19 at. % difference in the concentrations of the isotope B-10 was attained on an experimental installation with a packed mass-exchange column 11 mm in diameter at a packing bed height of 148 cm and spiral-prismatic packing with an element size of 1.25 x 1.25 x 0.2 mm. The degree of separation was K = 3.5, and HETP was in the range from 5.2 +/- 0.8 to 8.0 +/- 1.0 cm, suggesting high efficiency of the mass exchange.

引用

页码：400 / 402

页数：3

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[1] Phase and isotopic equilibria in the anisole center dot BF3-BF3 system at 0.1-0.8 MPa pressures
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[9] SEPARATION OF BORON ISOTOPES .2. BF3 ANISOLE SYSTEM
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