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BENEFICATION TECHNOLOGY
ArticleName Nickel flotation circuit flow-sheet and regime improvement in processing high-grade Talnakh and the Oktyabrsky mine cupriferous ores blend with a view to increase nickel concentrate grade
ArticleAuthor Koltunova Т. Ye., Urnysheva S. А., Aksyonova G. Ya.
ArticleAuthorData Koltunova Т. Ye., Urnysheva S. А., Aksyonova G. Ya.; office@mekhanobr.spb.ru
Abstract The results of studies, preformed in Talnakh ore nickel-pyrrhotine and nickel flotation circuits, are presented. Based on the ores chemical composition studies by means of using conventional and the state-of-the-art analysis methods, the flow-sheet improvement is proposed with a view to produce a high-grade nickel concentrate. It is shown, that appropriate alterations in the flow-sheet with concurrent corrections in the reagent regime permitted to significantly improve nickel concentrate grade. In processing of ore blend containing 1.93 % nickel and 3.6 % copper, nickel concentrate is produced with 14.7 % nickel content, recovery being 77.52 %; while from ore blend containing 2.25 % nickel and 3.72 % copper-nickel concentrate with 15.6 % nickel content, recovery being 76.79 %.
keywords nickel, pentlandite, pyrrhotine, flotation, regrinding, modifiers, concentrate, content, recovery.
References 1. Совершенствование технологии обогащения богатых талнахских руд и медистых руд рудника «Октябрьский» / И. И. Максимов, А. О. Ядрышников, Т. Е. Колтунова и др. // Обогащение руд. 2007. № 1. С. 3–5.
2. Improving pentlandite pyrrhotite separation at INCO's Clarabelle mille / V. Lawson, A. N. Kerr, Y. Shields et al. // Proceedings of the Centenary of flotation symposium. Brisbane. 2005. P. 875–888.
3. Flowsheet Development, Commissioning and Start-up of the Voisey's Bay Mill / P. Wells, P. Langlois, I. Barrett et al. // 39th Annual Meeting of the Canadian Mineral Processors. Ottawa, Ontario, Canada. 2007. P. 4–18.
Language of full-text russian
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