Transactions of the INDIAN CERAMIC SOCIETY Vol. 22 1963
A Study on the Suitability of some Indian Dolomite
for Use in Steel Plants
M. RAMAKRISHNA RAO, PRITHWIS C. SEN and H. V. BHASKAR RAO
Pages : 137-145
DOI : 10.1080/0371750X.1963.10855467
Samples of dolomite from Hirri, Hardi and Baraduar in Madhya Pradesh were
studied as regards their s,uitability for use in steel plants. Chemical composition and
acid insolubles were determined. 0 Ptimum temperature of calcination and size of
charge for getting a good sinter were determined from ~he bulk density and hydration
tendency of the sintered product. The high silica content and its non-uniform
distribution in Hirri dolomite resulted in the formation of dicalcium silicate which
led to dusting while cooling.
Under the experimental conditions uniform sintering and bulk density could
not be obtained in the dolom~tes studied, when the size of the charge was 10 em.
to 15 em. However, it was possible to get a more uniform product when the size
of the charge was 2.5 to 5 em. It appeared from this study that under Indian
conditionS> rotary kiln should be preferable to shaft kiln for the production of
sintered dolomite for use in steel plants.