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ArticleName Upon the world practice in ore-preparation of porphyry copper ores
ArticleAuthor Baranov V. F., Sataev I. Sh.
ArticleAuthorData Baranov Viktor Fedotovich, Deputy General Director for Prospective Projects,, Mekhanobr Engineering (Russia); Sataev Irik Shagitovich, Candidate of Engineering (Russia).
The current state of ore-preparation circuits of concentrating plants treating porphyry copper ores has been analyzed. Energy-efficient ore-preparation flow sheets and equipment employed in the latest projects of large mining and processing operations by the world leading copper producing companies have been considered. The tendencies in ore-preparation circuits design have been revealed, characterized by two main competitive methods: ore semiautogenous grinding and press-roll crushing.
keywords Porphyry copper ores, cyclical-and-continuous method, layout arrangement concepts, crushing, grinding, cone crushers, SAG, HPGR, energy-efficiency.

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