HIGH-ALUMINA TECHNOGENIC RAW MATERIAL
V. A. Perepelitsyn,
V. A. Koroteev,
V. M. Rytvin,
S. I. Gil’varg,
V. G. Grigor’ev,
A. N. Abyzov,
and V. G. Kutalov
Translated from Novye Ogneupory, No. 4, pp. 23 – 27, April 2011.
Original article submitted February 8, 2011.
The substance composition, properties, and areas for use of five large scale varieties of technogenic high-alu
mina mineral raw materials are considered: aluminothermal slags, organic synthesis catalysts, abrasive slur
ries, aluminium slags and alumina dust. With combined use on the basis of this secondary raw material it is
possible to produce more than twenty forms of different product: refractories, ceramics, abrasives, cement,
slag neutralizers, fluxes, proppant sands, glass fiber, sitalls, coagulants, pigments, etc.
Keywords: mineral composition, chemical composition, microstructure, wastes, slag, slurry, dust, alumina,
Currently in the Ural region a number of scientific orga-
nizations and industrial enterprises are participating in the
fulfilment of Regional and Federal programs for processing
technogenic formations. In 2008 the presidium of the Rus-
sian Academy of Sciences developed and approved a com-
prehensive program for study and assimilation of untradi-
tional sources of mineral raw material, including technogenic
formations. Main attention in the academic program is de
voted to high-alumina natural and technogenic raw material
sources: minerals of the kyanite, andalusite, silimanite,
kaolinite and pyrophilite groups, aluminosilicate waste from
thermal power engineering, high-alumina slags, slurries,
dust, etc. Within the scope of fulfilling these programs there
is research work, a study of substance composition and prop
erties of mineral raw materials, and promising areas are be
ing developed for use of the most valuable varieties of
technogenic high-alumina materials. Among the latter are the
following large-scale technogenic formations are of greatest
practical interest (limits of Al
content, wt.%, are shown
in brackets): aluminothermal slags in the production of the
majority of ferroalloys and master alloys (50 – 85), wastes of
catalyst production or synthetic rubber (65 – 75), corundum
slurry from abrasive production (82 – 96), dust from alumina
calcining furnaces (90 – 97), and metal-mineral waste from
the production of secondary aluminum (60 – 72).
Technogenic “deposits” are primarily a potential raw ma-
terial for synthesis of refractories, heat-resistant, and ceramic
fuzed materials of different composition: alloyed corundum,
mullite-corundum, spinel, codierite, etc. In view of the wide
range of mechanical, thermal and chemical properties many
varieties of technogenic mineral raw materials may be used
effectively, not only in the refractory branch, but also in the
production of abrasives, binders, heat insulation and other
functional materials and objects [1 – 3]. In order to develop
effect areas for recycling secondary mineral resources com
plete information si necessary about the substance, grain size
composition and physicochemical properties of each variety
of technogenic polyphase and often polydispersed techno
genic raw material.
ALUMINOTHERMAL SLAGS FROM FERROALLOY
AND MASTER ALLOY PRODUCTION
OAO Klyuchev Ferroalloy Plant is the sole enterprise in
the RF and CIS producing more than thirty named unique
ferroalloys and master alloys by the method of alumino
thermal reduction of metals from oxides and other com
Refractories and Industrial Ceramics Vol. 52, No. 2, July, 2011
1083-4877/11/05202-0084 © 2011 Springer Science+Business Media, Inc.
OAO VOSTIO, Yekaterinburg, Russia.
Institute of Geology and Geochemistry UrO RAN Yekaterinburg,
OOO Klyuchev Enrichment Plant, Dvurechensk, Sverdlovsk Re
OAO UK RosStetsSplav, Yekaterinburg, Russia.
OOO NPO VOSTIO, Yekaterinburg, Russia.