US 2016/0031758 A1

Cement additives produced by ­combustion of coal with clay and slag

(22) 12.10.2015

(43) 04.02.2016

(57) Coal is combusted in the presence of a clay additive and a slag additive to produce a combustion product that is useful as a pozzolanic additive for cement. The combustion process may be performed in a coal-fired boiler of an electrical power generation plant, resulting in improved operational efficiency and controlled emissions.

(71) Ash Improvement Technology Inc., New York, NY (US)

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