Separation of fly ash carbons by various cleaning processes

McMahan L Gray, Kenneth J Champagne, Yee Soong, Richard P Killmeyer, John P Baltrus, M Mercedes Maroto-Valer, John M Andresen, Michael V Ciocco, Paul H Zandhuis

Research output: Chapter in Book/Report/Conference proceedingConference contribution


An industrial fly ash sample was cleaned by three different processes, which were triboelectrostatic separation, ultrasonic column agglomeration, and column flotation, cleaned an industrial fly ash sample. The unburned carbon concentrates were collected at purities ranging up to 62% at recoveries of 62%. In addition, optical microscopy studies were conducted on the final carbon concentrates to determine the types of carbon (inertinite, isotropic coke and anisotropic coke) collected from these various cleaning processes. The effects of the various cleaning processes on the production of different carbon types from fly ash will be discussed.

Original languageEnglish
Title of host publicationEnvironmental Challenges and Greenhouse Gas Control for Fossil Fuel Utilization in the 21st Century
EditorsM Mercedes Maroto-Valer, Chunshan Song, Yee Soong
Number of pages14
ISBN (Electronic)978-1-4615-0773-4
ISBN (Print)978-1-4613-5232-7
Publication statusPublished - 2002
Event221st American Chemical Society National Meeting - San Diego, United States
Duration: 1 Apr 20015 Apr 2001


Conference221st American Chemical Society National Meeting
Country/TerritoryUnited States
CitySan Diego


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