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Britholite Group Minerals from REE-Rich Lithologies of Keivy Alkali Granite—Nepheline Syenite Complex, Kola Peninsula, NW Russia
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Binding Properties of Mechanically Activated Nepheline Containing Mining Waste

Tananaev Institute of Chemistry, Subdivision of the Federal Research Centre “Kola Science Centre of the Russian Academy of Sciences”, Akademgorodok 26a, 184209 Apatity, Murmansk Region, Russia
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Minerals 2020, 10(1), 48; https://doi.org/10.3390/min10010048
Received: 29 November 2019 / Revised: 31 December 2019 / Accepted: 1 January 2020 / Published: 3 January 2020
The development of apatite and rare-metal deposits of the Khibiny and Lovozero—the world’s largest ultrabasic massifs located in the Kola Alkaline Province—is accompanied by accumulation of huge amounts of sandy tailings dumps, about half consisting of nepheline. These tailings, on the one hand, pose a real threat of environmental pollution. On the other hand, they are “technogenic deposits” that contain reserves of valuable components (Na2O, K2O, Al2O3, etc.). In this paper, methods of processing of the nepheline-containing mining waste using mechanical activation to produce binding materials—geopolymers and blended cements—are observed. The advantages of combining the nepheline containing tailings dumps with other mining wastes accumulated in the region, such as Cu–Ni slag, are presented.
Keywords: mining waste; ore dressing tailings; nepheline; binding properties; mechanical activation mining waste; ore dressing tailings; nepheline; binding properties; mechanical activation
MDPI and ACS Style

Gurevich, B.I.; Kalinkina, E.V.; Kalinkin, A.M. Binding Properties of Mechanically Activated Nepheline Containing Mining Waste. Minerals 2020, 10, 48.

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