Method for obtaining isotopically enriched metal lead from monoisotopic tetramethyllead and its purification

Dmitry Vasilievich Akimov, Oleg S. Andrienko, Nikolay B. Egorov, Ivan I. Zherin, Denis V. Indyk, Mishik A. Kazaryan

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

The main methods of the synthesis of Pb(CH3)4, which is used as a working substance in the process of centrifugal separation of isotopes of lead are considered. The results of experimental studies on the dealkylation of Pb(CH3)4 with bromine in the temperature range from -30 °C to 20 °C are given. By infrared and mass spectrometry, chemical and thermal analyses dealkylation products were studied. The scheme of conversion isotopically enriched Pb(CH3)4 to metallic lead, including dealkylation of Pb(CH3)4 with bromine to lead bromide (II) and its subsequent reduction to metallic lead is suggested. The yield of 208Pb, obtained under this scheme is not less than 97%, its chemical purity is not less than 99.9%. The possibility of using distillation and crystallization methods for further purification of 208Pb from impurities is shown.

Original languageEnglish
Title of host publicationApplication of Stable Lead Isotope Pb-208 in Nuclear Power Engineering and its Acquisition Techniques
PublisherNova Science Publishers, Inc.
Pages137-176
Number of pages40
ISBN (Print)9781624176531
Publication statusPublished - 1 Feb 2013

ASJC Scopus subject areas

  • Chemical Engineering(all)

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