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ArticleName Promising technologies and techniques for iron ores processing (the latest iron ore projects review)
ArticleAuthor Baranov V. F.
ArticleAuthorData

Baranov V. F., Deputy General Director for Prospective Projects, Mekhanobr Engineering (Russia), office@mekhanobr.spb.ru.

Abstract

The 13 most recent iron ore concentrating plant projects, being under construction or planned to be built in the near future in Australia, Canada, Peru and Brazil have been considered. The raw materials base, metallurgical results, processing plants flow sheets and equipment, as well as main performance characteristics of Mining Complexes projects are presented. Domination of high-pressure rollers crushing technology is noted, permitting to drastically reduce processing stage feed size, reject a considerable mass of final tailings prior to grinding without magnetic separation, reducing number of grinding stages, thereby significantly decreasing ore-preparation costs. Vertical mill application is planned at one concentrating plant for the first time in finely-crushed ore grinding circuit following high-pressure grinding rollers; at another large concentrating plant — Derric screens are planned for application instead of hydrocyclones. Reverse flotation application is noted as a main operation in processing of oxide quartzite. Vertical mills will be applied for processing products regrinding, concentrates will be filtered in press-filters, concentrates hydrotransport systems will be designed for a distance up to 750 km, final tailings will be dewatered by paste thickening technology prior to disposal.

keywords Most recent projects, iron ores, ore-preparation, high-pressure grinding rollers, oxidized ores flotation, pelletizing, economy
References

1. Fitzgerald B. The Sino Iron Project. Project Overview. February 2009.
2. NI 43-101 Technical Report on the Pre-feasibility Study of the Ke Mag Iron Ore Project, Quebec for New Millennium Capital Corp. 2 March 2009.
3. Klymowsky R. High Pressure Grinding Tests on Coarse Iron Ore from Minas-Rio System. Polysius Research Centre. Alemanha, 2007.
4. Anglo Ferrous Metals — Minas Rio Project: Investor Presentation. October 2009.
5. Robust Scoping Study Delivered on the MT IDA Magnetite Project. Jupiter Mines Ltd. ASX Release. 15 March 2011.
6. Hawsons — The Flagship Project. Hong Kong Convention and Exhibition Centre. Mines and Money. 22–25 March 2011.
7. Yalgoo Iron Ore Project. Venus Metals Corp. Ltd. ASX Release. 16 February 2011.
8. Market Announcement. Strike Resources Ltd. 23 July 2008. Pre-feasibility Results Confirm World Class Prospects for Apurimac Project in Peru. www.strikeresources.com.au
9. NI 43-101 Preliminary Economic Assessment Report for the Roche Bay Project. Advanced Explorations Inc. Nunavut, Canada. March 2010.

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