Fly Ash Separation Technology | ST Equipment amp;
The STET separation process has been used commercially since 1995 for pulverized coal (PC) fly ash beneficiation and has generated over 20 million tons of highquality fly ash for concrete production. Controlled lowLOI ProAsh#174; is currently produced with STETs technology at 12 power stations throughout the United States, Canada, the United Kingdom, Poland, and the Republic of Korea.