Disassembly of old radium sources and conversion of radium sulfate into radium carbonate for subsequent dissolution in acid
Artikel i vetenskaplig tidskrift, 2016

In this work details of safe radium source disassembly which were previously used in brachytherapy are described and different methods for conversion of RaSO4 into aqueous solution are reviewed. The method of choice included three cycles of RaSO4 heating in 1.5 M Na2CO3 up to 85 °C, cooling and subsequent removal of supernatant. X-ray diffraction study showed that the method allows the synthesis of, presumably, amorphous RaCO3, which can be dissolved in mineral acid. Gamma spectrometric measurements showed that most of the initial RaSO4 was converted into solution and that 7 ± 1 % of the initial 210Pb was co-precipitated with RaCO3.

Co-precipitation

Sulfate

Carbonate

Dissolution

Lead

Radium

Författare

Artem Matyskin

Chalmers, Kemi och kemiteknik, Energi och material, Kärnkemi

Burcak Ebin

Industriell materialåtervinning

Mikhail S Tyumentsev

Industriell materialåtervinning

Christian Ekberg

Industriell materialåtervinning

Chalmers, Kemi och kemiteknik, Energi och material, Kärnkemi

Stefan Allard

Chalmers, Kemi och kemiteknik, Energi och material, Kärnkemi

Gunnar Skarnemark

Chalmers, Kemi och kemiteknik, Energi och material, Kärnkemi

Henrik Ramebäck

Chalmers, Kemi och kemiteknik, Energi och material, Kärnkemi

Journal of Radioanalytical and Nuclear Chemistry

0236-5731 (ISSN) 1588-2780 (eISSN)

Vol. 310 589-595

Ämneskategorier

Oorganisk kemi

Analytisk kemi

Drivkrafter

Hållbar utveckling

Styrkeområden

Energi

Fundament

Grundläggande vetenskaper

DOI

10.1007/s10967-016-4927-x