Method for producing cement clinker from cement kiln waste dust

Details Method for producing cement clinker from cement kiln waste dust Method for producing cement clinker from cement kiln waste dust

C - Chemistry, Metallurgy

04

B

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C04B 7/26 (2006.01) C04B 7/43 (2006.01) C04B 18/16 (2006.01) C05D 1/00 (2006.01)

Patent

CA 1144189

METHOD FOR PRODUCING CEMENT CLINKER FROM CEMENT KILN WASTE DUST ABSTRACT OF THE DISCLOSURE A method is disclosed for obtaining useful products from cement kiln waste dust. The dust is collected and added to an electric arc furnace where it is melted. The temperatures required to melt the dust are sufficiently high that alkali sul- fates present in the dust are volatilized, leaving a melt which has a composition acceptable for the production of cement clinker. The volatilized components are collected to form a second useful product; i.e., a potassium rich material suitable for the production of potassium bearing chemicals, such as fertilizers.

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