Plasma treatment of fly ash from coal combustion to improve...

Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge

Reexamination Certificate

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C204S173000, C423S460000

Reexamination Certificate

active

07985324

ABSTRACT:
A system and method for treating unmarketable fly ash and improve its properties as an additive for concrete is disclosed. The method includes the steps of creating a gas stream containing ionized air through a plasma reactor and exposing an amount of fly ash containing carbon to the ionized air while in the reactor. The exposure of the carbon to the ionized air promotes the attachment of the ions to the carbon to reduce the adsorption capacity of the carbon.

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