Thorium: Rare Earth Separation

Luke Georghiou, J. Stanley Metcalfe, Michael Gibbons, Tim Ray and Janet Evans

Chapter 35 in Post-Innovation Performance, 1986, pp 296-298 from Palgrave Macmillan

Abstract: Abstract Thorium Ltd gained the Queen’s Award for the development of solvent extraction processes for the ‘rare earth’ industry. The company was founded in 1914, but used standard chemical processes to produce thorium oxide commercially for gas-lighting mantles, ‘mischmetal’ (a mixture of rare earth elements) and lanthanum and cerium compounds, mainly for the glass industry. However, with rare-earth industries being established in Germany, America, France and Brazil, and with electric lighting replacing gas, markets were small and shared out by mutual agreement. In 1928 ICI became an equal shareholder in Thorium Ltd.

Keywords: Rare Earth; Glass Industry; Rare Earth Compound; Electric Lighting; Thorium Nitrate (search for similar items in EconPapers)
Date: 1986
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DOI: 10.1007/978-1-349-07455-6_40

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