Process for producing portland and other hydraulic cements

Details Process for producing portland and other hydraulic cements Process for producing portland and other hydraulic cements

C - Chemistry, Metallurgy

04

B

261/65

C04B 7/46 (2006.01)

Patent

CA 1146983

ABSTRACT Portland and other hydraulic cements are produced by introducing nodular, pulverulent, or molten feed materials, properly proportioned, into a melt that is contained within an electric furnace. The furnace may be arc, induction, resistance or other type using electric current as the source of energy. This current not only heats the melt, but further serves to produce turbulence which mixes the feed materials within the melt so that those feed materials chemically combine within the melt, providing the melt with the desired chemical constituency. The size, form of electrical energy input, and other design features of the furnace are related to required feed rate and the material melting rate. The melt is thereupon withdrawn and cooled to solidify it into a substance that has the chemical constituency and properties of the desired hydraulic cement.

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