The application of prerefining for steelmaking processes

Pears, J and Davies, E (1963) The application of prerefining for steelmaking processes. In: International symposium on recent developments in iron and steelmaking with special reference to Indian conditions, Feb. 1963, NML, Jamshedpur.



MANY PROCESSES have been developed for the pretreatment of pig iron before its final refining in open-hearth furnaces. At the turn of this century the 'washed metal' process, deVeloped in 1890 by Campbell,' was used in the USA to remove silicon and phosphorus from pig iron before final steelmaking in the acid open-hearth process. About this time the Bertrand Thiel process,2 Hoesch and Talbot processes3 and the Monel process" were developed. These processes were chemically attractive, but were abandoned because of excessive iron losses due to chill- ing and difficulties in the maintenance of the refractor-ies in the vessels utilized. However, the advantages of working with prerefined metal of known and regular comp-osition were proved inasmuch as the processes were flexi-ble and variations in technique could be employed to suit variable conditions. The heat developed during prerefining can be utilized either to melt up unwieldy pit scrap or, alternatively, ore can be used to control temperature with an attendant useful gain in yield.

Item Type:Conference or Workshop Item (Paper)
Official URL/DOI:
Uncontrolled Keywords:Silicon; chemically attractive; electric furnace; phosphorus
Divisions:Metal Extraction and Forming
ID Code:5567
Deposited By:Sahu A K
Deposited On:21 Jun 2012 12:21
Last Modified:21 Jun 2012 12:21
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