Patent ID: 7416646
Filing Date: 2008-08-26
Classification: C01B,C04B,Y02W

Abstract:
1. In a process for treating negatively charged fly ash with unacceptably high levels of carbon which cannot be economically used as an additive for cement comprising turbulently subjecting in a gas stream containing said negatively charged fly ash with unacceptably high levels of carbon to an ozone generator comprising an insulator having thereon a metal surface which has at least one metallic sharp-tipped component disposed thereon and wherein the ozone generator produces ozone through corona discharge causing pacification of the fly ash with unacceptably high levels of carbon so that the fly ash is efficiently used as an additive for cement, the improvement wherein: said metallic sharp-tipped component is placed in a gas stream within a venturi to produce added speed to produce an enhanced corona discharge.