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Mineral processing of mine and quarry waste

By C.J. Mitchell and E.J. Evans

Abstract

The Mineralogy and Petrology Group of the British Geological Survey has been involved in a number of waste processing investigations over the last seven years. Four of which are described in this paper. The first, ceramic-grade feldspar was produced by the use of air classification to upgrade the fines resulting from the hand sorting of a pegmatitic-feldspar in Thailand. This is followed by two studies in which combined magnetic separation and froth flotation was used to produce glass- and ceramic-grade feldspar from quarry and mine waste. In the final case, gravity separation was used to remove a significant proportion of the heavy metal bearing minerals from tailings of the former Pb-Zn mining area of Leadhills in Southern Scotland. The aim of this study was to determine the potential for traditional mineral processing technology to recover metal from waste for environmental remediation

Topics: Earth Sciences
Publisher: The Institution of Mining and Metallurgy
Year: 1997
OAI identifier: oai:nora.nerc.ac.uk:14032

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