PROCESS FOR PRODUCING MODIFIED FLY ASH
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United States of America
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Jan 9, 2020
app pub date -
Mar 19, 2018
filing date -
Mar 19, 2018
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Abstract
A process for producing a modified fly ash comprising the steps of providing, as a raw material, the raw fly ash discharged from a pulverized coal combustion boiler; classifying the raw fly ash into a crude powder and a fine powder; removing the unburned carbon contained in the crude powder by heating the crude powder at a temperature in a range of 500 to 1000° C.; and mixing together the crude powder from which the unburned carbon has been removed and the fine powder to obtain a modified fly ash.
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