Study on Pyrolysis Reaction of Boron Isotope Separation

2012 
Nowadays in China, excessive import of boron isotope has always been the bottleneck to its industrial applications in nuclear, mechanical, steel and electronic fields. To pull the boron industry out of the mire of import, it is prerequisite to study the enriching and refining of boron isotope. In this work, we present an experimental setup of boron isotope separation by chemical exchange distillation with focus on pyrolysis reaction. After repeated tests, the optimal temperature of pyrolysis reaction (i.e., 140oC) had been found and the best enrichment of 10B (i.e., 34.4%) could be achieved when the reaction continued to the 8th day. These results indicate that the more completely the pyrolysis reaction performs, the better enrichment of 10B arrives.
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