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Mineral processing can involve four general types of unit operation: comminution – particle size reduction. |
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In the field of extractive metallurgy, mineral processing, also known as mineral dressing or ore dressing, is the process of separating commercially valuable minerals from their ores. |
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During the 20th century, the variety of metals uses in society grew rapidly. |
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As of 2008, the deepest mine in the world is TauTona in Carletonville, South Africa at 3.9 kilometers, replacing the neighboring Savuka Mine in the North West Province of South Africa at 3,774 meters. |
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Safety has long been a controversial issue in the mining business especially with sub-surface mining. |
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Mining exists in many countries. |
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New regulation and process of legislative reforms aims to enrich the harmonization and stability of the mining sector in mineral-rich countries. |
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The World Bank has been involved in mining since 1955, mainly through grants from its International Bank for Reconstruction and Development, with the Bank's Multilateral Investment Guarantee Agency offering political risk insurance. |
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Iron hydroxide precipitate stains a stream receiving acid drainage from surface coal mining. |
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The science of extractive metallurgy is a specialized area in the science of metallurgy that studies the extraction of valuable metals from their ores, especially through chemical or mechanical means. |