About Us

Separation Technologies was founded in 1989 to develop commercial applications for a proprietary electrostatic separation process. By 1994, Separation Technologies was focusing on applying its separation technology to processing fly ash that could be used in high value commercial applications rather than being disposed of in landfills.

Since 1995, Separation Technologies has commercially operated the most successful worldwide fly ash separation systems producing ProAsh®. Separation Technologies leads the industry through innovation in technology, marketing, and commercial success.

Our Services


Coal Burning Power Producer

Separation Technologies delivers commercially proven, flexible, least-risk technology for processing coal fly ash without the considerable cost of added combustion. No added emissions mean no future uncertainty in permitting or in regulatory compliance.


Concrete Producers

ProAsh® is the most consistent component of the concrete composite, creating a reliable product that provides cost-savings to our customers while increasing the strength and durability of the concrete. ProAsh® is a sustainable building product that can contribute to LEED certified building projects.