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Pure genius? How new technology could shake up HPA supply

By Cameron Perks
Published: Thursday, 26 January 2017

High purity alumina is typically produced via an add-on stage to traditional alumina extraction from bauxite, but at least two companies are on the cusp of breaking into the material’s supply chain with revolutionary new processing methods, Cameron Perks, IM Correspondent, finds.

High purity alumina (HPA), or aluminium oxide with a minimum purity of 99.99% (4N) Al2O3, is a high value speciality product with a broad range of uses. The material is most commonly turned into synthetic sapphire for use in LEDs, semiconductors, phosphors and lithium-ion (Li-ion) batteries, among other markets....

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