POTENTIAL USE OF THE SLURRY FRACTION OF ELECTROFUSED
CORUNDUM IN THE PRODUCTION OF PERICLASE REFRACTORIES
V. G. Kulebakin,
V. F. Shabanov,
A. M. Zhizhaev,
Yu. A. Dmitrienko,
and E. P. Novikov
Translated from Novye Ogneupory, No. 3, pp. 34, 36 – 38, March, 2006.
Original article submitted October 31, 2005.
Results of laboratory and industrial-scale tests on the potential use of an unshaped periclase refractory mix
modified with the slurry fraction of electrofused corundum containing 85% Al
are reported. The optimum
concentration of slurry fraction is shown to be 12 – 14 wt.%. Routes towards utilization of wastes in the pro
duction of abrasive materials are discussed.
A wide range of refractories is commercially available
from the Kombinat Magnezit JSC, including periclase, peri-
clase-chromite, chromite-periclase, and carbon-containing
materials for the lining of electric furnaces, continuous cast-
ing machines, vacuum degassers, converters, slide gates of
steel ladles, powdered periclase and periclase-lime sintered
and unshaped refractories of different composition and appli-
cation, etc.; this notwithstanding, further development of
new materials has been and continues to be an issue of
With this in view, the slurry fraction of electrofused co
rundum (SFC), a waste product from the Yurga Abrasive
Plant (Kemerovo Region, Russia), was tested as an alterna
tive refractory material to the expensive periclase. One will
recall that Al
, as a SFC component, has a high melting
point — from 2010 to 2050°C — which makes it a good can
didate for the sought-for new formulation.
The SFC contained up to 85% synthetic Al
electrofused corundum, whose x-ray diffraction pattern,
shown in Fig. 1, was quite close to standard ASTM 42–1468
and ASTM 43–1484 patterns. The other components were
electrocorundum fractions of 0.16 – 0 and 0.09–0mm(Ta
ble 1) and periclase powders of fractions 3 – 1 and 1–0mm
whose composition, as shown by interplanar spacings in their
x-ray diffraction patterns (see Fig. 2), agree with the ASTM
45–0946 standard. The mixture of electrocorundum and
periclase (1 : 4) was thoroughly homogenized for 30 min us-
ing a ball mill. Relevant sieve and chemical compositions are
given in Tables 2 and 3.
Mixtures for shaping refractories at periclase/SFC ratios
as shown in Table 4 were prepared using a laboratory grind-
Refractories and Industrial Ceramics Vol. 47, No. 2, 2006
1083-4877/06/4702-0094 © 2006 Springer Science+Business Media, Inc.
Institute of Chemistry and Chemical Technology, Siberian
Branch of the Russian Academy of Sciences, Krasnoyarsk, Rus
sia; Krasnoyarsk Research Center, Siberian Branch of the Russian
Academy of Sciences, Krasnoyarsk, Russia; Kombinat Magnezit
Joint-Stock Co., Satka, Chelyabinsk Region, Russia.
Fig. 1. X-ray diffraction pattern of an electrocorundum slurry frac
tion available from the Yurga Abrasive Plant (YAP); numerals indi
cate interplanar spacings in nanometers.
Fig. 2. X-ray diffraction pattern of periclase available from the
Kombinat Magnezit JSC; for notations, see Fig. 1.