PRODUCTION FEATURES OF b-SPODUMENE
COMPOSITION GLASS CERAMIC SYNTHESIS.
PART 3. STUDY OF THE POSSIBILITY OF PROCESSING
FIRED b-SPODUMENE COMPOSITION MATERIAL
E. I. Suzdal’tsev
Translated from Novye Ogneupory, No. 4, pp. 34 – 37, April 2015.
Original article submitted August 21, 2014.
An effective method is proposed for processing production waste after firing glass ceramic providing intro
duction into main production of about one third of original raw material with a marked increase in milling
Keywords: raw material grinding, stagewise loading of milling equipment, density, viscosity, slip pH, casting
density and porosity.
Potential losses of original raw material in the stages of
slip preparation and casting workpieces have been noted in
previous publications. It has been demonstrated that intro-
duction into a production cycle of repeated processing of cast
workpieces into slip resolves the problem of an unfavorable
effect on quality of aggregates of sub- and microfine parti-
cles of grindable material (see Fig. 1), and additional adjust
ment of slip pH by introducing HCl somewhat loosens up a
ceramic workpiece, which in combination makes it possible
to accelerate workpiece casting and exclude entirely wall
run-off after completing the process (Table 1). The technical
solution proposed makes it possible not only to return for re
processing workpiece scrap after casting (up to 3% of all cast
objects), but also the fact that most importantly entirely in
volve production drainage from pouring chambers, which
with respect to volume of original raw material exceeds by a
factor of ten raw material consumption taken away as scrap.
In considering the subsequent production chain for man
ufacturing glass ceramic objects it is seen that 36% of all
fired objects do not reach a finished product storage. Con
verted to original raw material for the objects in question this
comprises 10,480 kg.
Thus, under contemporary conditions return to manufac-
ture of production waste after object firing is an important
task, not only from economic considerations, but also for na-
ture protection, since this waste fills a dump. In view of this
waste utilization is a means of increasing manufacturing effi-
ciency and reducing the load on an ecosystem.
During development of glass ceramic object preparation
technology the grinding equipment used is ball mills with a
lining of aluminum oxide for slip production. The optimum
ball load for a mill has been established: balls : material : wa
ter3:1:0.17. However, even with this charge of grinding
Refractories and Industrial Ceramics Vol. 56, No. 2, July, 2015
1083-4877/15/05602-0184 © 2015 Springer Science+Business Media New York
Part 1 of the article published in Novye Ogneupory No. 12 (2014),
Part 2 in No. 2 (2015).
GNTs RF OAO ONPP Tekhnologiya, Obninsk, Kaluga Region,
Fig. 1. Aggregates of fine particles within the structure of molded
workpiece of amorphous lithium aluminium silicate glass. ´600.