PRODUCTION AND EQUIPMENT
PRODUCTION OF FUZED ZIRCONIUM DIOXIDE
IN OAO PERVOURALSK SILICA PLANT
V. A. Perepelitsyn,
A. M. Gorokhovskii,
A. V. Fedorovtseva,
and L. P. Yakovleva
Translated from Novye Ogneupory, No. 7, pp. 25 – 29, July, 2016.
Original article submitted April 19, 2016.
Relative wear resistance in service of various refractories of different chemical and mineral composition is
calculated theoretically. On the basis of thermal energy density values it is established that of all oxides zirco
nium oxide is in first place for highest refractoriness (melting temperature >2500°C). Among available refrac
tory minerals (compounds of other chemical classes with respect to wear resistance ZrO
is only worse than
graphite and silicon carbide (a-SiC). On the basis of research a procedure is developed, and a production line
is planned, constructed, and put into operation for industrial manufacture of fuzed partly stabilized zirconium
dioxide (PSZD). Zirconia-graphite submersible nozzles for a CBCM are produced using PSZD.
Keywords: partly stabilized zirconium dioxide (PSZD), chemical element percentage abundance, high refrac-
toriness, thermal energy density, refractory relative wear resistance.
The main areas of continuous technological development
of OAO Pervoural’sk Silica Plant are development and intro-
duction of new efficient products, perfection of technology,
improvement of standard object and unmolded refractory
quality, expansion of the range and volume of products of
high quality synthetic resources, and import substitution (es
pecially in resolving resource problems).
It is generally known that 60 – 70% of linings in service
break down as a result of chemical reaction with liquid, gas
eous, and solid substances, i.e., active heating unit corrosive
agents. Since the rate of dissolution, evaporation, and chemi
cal reaction of refractories with corrosive media is inversely
proportional to the crystal size of minerals within them, max
imum chemical corrosion resistance is exhibited by dense
coarsely crystalline fuzed materials. On the basis of numer
ous comparative industrial tests in service it has been estab
lished that the relative corrosion resistance of fuzed materials
is higher by 30 – 60% than a sintered identical and mineral
In OAO Dinur there is constant expansion of the range
and an increase in volume of output of contemporary refrac
tory products using fuzed raw materials of in-house produc
tion . Over the last 15 – 20 years in the engineering center
of the plant physicochemical bases have been developed and
industrial production has been organized for fuzed materials:
magnesia-alumina spinel MgAl
, white electrocorundum,
alloyed varieties of electrocorundum (Al, Ti)
, and corundum-mullite (Al
of these materials have a melting temperature in the range
1713 – 2200°C, which is inadequate for a number of contem
porary and new high-temperature production processes in
electric heating, space, atomic, and other branches. Refrac
tories are required with good refractoriness with a melting
temperature above 2500°C for use under extreme high-tem
perature conditions in oxidizing media.
In accordance with an innovative program of expansion
of the product range in the plant choice of raw materials for
industrial production of new highly efficient refectories is ac
complished on the basis of combined evaluation of maxi
mum wear resistance taking account of materials science,
geochemical, ecological, production, and economic factors.
The economic parameters of production and product applica
Refractories and Industrial Ceramics Vol. 57, No. 4, November, 2016
1083-4877/16/05704-0355 © 2016 Springer Science+Business Media New York
Proceedings of the International Conference of Refractory
Workers and Metallurgists (7 – 8 April 2016, Moscow).
FGAOU VPO Ural Federal University, Ekaterinburg, Russia.
OAO Pervoural’sk Silica Plant, Pervoural’sk, Sverdlov Region,