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- Cost estimate of the Bayer process for producing alumina, based on 1982 equipment prices
- Economic and technical evaluation of the sulfurous acid-caustic purification process for producing alumina from kaolinitic clay
- Potash recovery from process and waste brines by solar evaporation and flotation
- Recovery of lithium from a montmorillonite-type clay
- Gallium and gallium arsenide :supply, technology, and uses