National Mineral Resources University (University of Mines) (Russia): 

Trushko V. L., Professor, Doctor of Engineering Sciences, trushko@spmi.ru

Kuskov V. B., Associate Professor, Ph. D. in Engineering Sciences, opikvb@mail.ru

Kuskova Ya. V., Assistent, Ph. D. in Engineering Sciences, yana.kuskova@gmail.com

An integrated non-waste technology for processing of the Yakovlevskoye deposit high-grade iron ore has been developed, permitting to produce a high-grade competitive raw material for metallurgical industry and a competitive red iron oxide pigment, utilized in paint-and-varnish industry, as well as in other sectors. As an alternative to sintering, «cold» briquetting process is proposed, being less expensive and causing a minimal environmental damage. The technology provides for martite-hydrohematite ore screening. Plus 5 mm size fraction is utilized as a metallurgical raw material. Minus 5 mm size fraction is subjected to magnetic separation, non-magnetic fraction is subjected to grinding and multi-stage hydraulic classification, producing several sorts of pigment. Martite ore is fed to screens. Undersize (–5 mm) is delivered to mixer to be mixed with binder. «Non-pigment» fractions from pigment shop are also fed to mixer. Screen oversize (+5 mm) is utilized as a final metallurgical raw material. Following mixing, final mix is briquetted. Green briquettes, following non-standard size briquettes (–5 mm) rejection on roller screen, are dried and shipped as end product. Non-standard size green briquettes are returned to mixer by a system of conveyors.

1. Orlov V. P., Shevyrev I. A., Sokolov N. A. Zheleznyye rudy KMA. Pod redaktsiyey V. P. Orlova (Iron ores of the Kursk magnetic anomaly. Under ed. of V. P. Orlov). Moscow, Geoinformmark, 2001, 616 p.
2. Sergeev S. V., Lyabakh A. I., Zaytsev D. A. Nauchnyye Vedomosti BelGU. Estestvennyye Nauki — Belgorod State University Scientific Bulletin. Natural Sciences, 2011, No. 3 (98), Iss. 14, pp. 200–208.
3. Kuskov V. B., Kuskova J. V., Kornev A. V., Trushko V. L. Preparation of iron ore for metallurgical processing. CIS Iron and Steel Review, 2011, pp. 4–5.
4. Kuskov V. B., Kornev A. V. Briquettes for metallurgical industry. CIS Iron and Steel Review, 2011, pp. 6–7.
5. Trushko V. L., Dashko R. E., Kuskov V. B., Kornev A. V. Zapiski Gornogo Instituta, 2011, Vol. 194, pp. 120–123.
6. Kuskov V. B., Kuskova Y. V., Mikheyev A. I., Rogova I. S. Oxide bearing iron ore processing to produce pigments for paint and varnish industry. CIS Iron and Steel Review, 2009, pp. 7–8.
7. Kuskov V. B., Kuskova Ya. V. Metallurg Magazine, 2010, No. 3, pp. 70–72.
8. Kuskov V. B., Kuskova Y. V. Development of technology for preparing iron oxide pigments. Metallurgist, 2010, Vol. 54, Nos. 3–4, pp. 192–194.
9. Pat. 2441892 Russian Federation.
10. Pat. 2476468 Russian Federation.