Method and apparatus for foaming or expansion of molten slags

Details Method and apparatus for foaming or expansion of molten slags Method and apparatus for foaming or expansion of molten slags

C - Chemistry, Metallurgy

03

B

39/116, 49/77.5

C03B 19/08 (2006.01) C03B 7/16 (2006.01) C03B 19/10 (2006.01) C21B 3/06 (2006.01)

Patent

CA 1107511

ABSTRACT OF THE DISCLOSURE Molten metallurgical slags are expanded by contact with water in a liquid or vapor state by passing the molten slag along a prefoaming or expanding through by delivering the slag to this trough via an intermediate trough which is shift- able along the prefoaming trough in order to vary the location at which the slag contacts the prefoaming trough and the expend- ing-agent film thereon in accordance with physical characteris- tics of the molten slag, especially its temperature and visco- sity. From the pre-expanding or prefoaming trough, the par- tially expanded slag may be subjected to expansion by conven- tional means, e.g. a rotating drum which disperses the slag particles trough the air so that they can be collected in a completely expanded, dry and solidified state.

290944

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