Production of Dolomite Refractories

Chowdhury, K P and Moorthy, V K and Singh, Rabindar (1953) Production of Dolomite Refractories. Other (TMP). CSIR-NML, Jamshedpur, Jamshedpur.

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Dolomite, unlike magnesite, is widely distributed throughout the earth’s crust. Both as a brick and a ramming mix, dolomite products are being utilized in large quantities in steel industries. Dolomite can be used as a substitute for manganese in most parts of the furnaces. Difficulties arise, however, because high temperature calculation of dolomite does not yield a stable product, and dolomite suffers from serious limitations of “perishing” and “dusting” in the furnace. A number of investigations have been carried out to determine the cause of these defects. A.H.Jay has shown from X-rays examinations that “perishing” is due to the hydration of the small content of uncombed lime, present after calcinations; white “dusting” is due to the volume expansion accompanying the inversion of beta-dicalcium silicate, formed during calcinations, to gamma-dicalcium silicate. Jay’s work emphasized the necessity of stabilization of dolomite, before it can be successfully employed for refractory purposes.

Item Type:Project Reports (Other (TMP))
Uncontrolled Keywords:Production of Dolomite Refractories, Dolomite, X-rays examinations, beta-dicalcium silicate, gamma-dicalcium silicate
Divisions:Information Management and Dissemination Centre
ID Code:8909
Deposited By:Dr Mita Tarafder
Deposited On:20 May 2022 16:12
Last Modified:20 May 2022 16:12
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