Determination of the separation coefficients of the isotopes of boron in the equilibrium evaporation of BCl3

Sevryugova, N. N.; Уваров, О. В.; Zhavoronkov, N. M.

doi:10.1007/bf01479858

Cited by 1 publication

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“…The correction factor, K, is the ratio of the addition of a series of molar absorption coefficients in essence according to Equations (1)- (5). So, boron isotope ratio can be calculated by the peak areas of A 10 and A 11 .…”

Section: Calculation and Correction Of The Isotope Ratiomentioning

confidence: 99%

“…A large industrial plant with a productivity of up to 300 kg per year of elemental boron with 95% 10 B content was put into operation in 1944 [4]. At present, the most common methods for the separation of boron isotopes include the distillation method [5], chemical exchange rectification [6,7], ion exchange [8,9], and laser isotope separation [10,11], among others. Chemical exchange rectification is the simplest and most productive method for the separation of 10 B and 11 B isotopes at concentrations of 95% and over [12].…”

Section: Introductionmentioning

confidence: 99%

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Online Determination of Boron Isotope Ratio in Boron Trifluoride by Infrared Spectroscopy

Zhang

Tang

2018

Applied Sciences

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Enriched boron-10 and its related compounds have great application prospects, especially in the nuclear industry. The chemical exchange rectification method is one of the most important ways to separate the 10B and 11B isotope. However, a real-time monitoring method is needed because this separation process is difficult to characterize. Infrared spectroscopy was applied in the separation device to realize the online determination of the boron isotope ratio in boron trifluoride (BF3). The possibility of determining the isotope ratio via the 2ν3 band was explored. A correction factor was introduced to eliminate the difference between the ratio of peak areas and the true value of the boron isotope ratio. It was experimentally found that the influences of pressure and temperature could be ignored. The results showed that the infrared method has enough precision and stability for real-time, in situ determination of the boron isotope ratio. The instability point of the isotope ratio can be detected with the assistance of the online determination method and provides a reference for the production of boron isotope.

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Section: Calculation and Correction Of The Isotope Ratiomentioning

confidence: 99%