US Patent Number
5817230
Publication Date
10-6-1998
Abstract
A method for improving the pozzolanic character of fly ash includes the steps of first hydraulically classifying and then flotation separating the fly ash in order to reduce particle size distribution and remove carbon. The method also includes the steps of spiral concentrating separated coarse particles to recover iron, pyrite and marcasite and screening the fly ash to remove ultra-light carbon and plant debris.
Assignees
University of Kentucky Research Foundation, Lexington, Ky.
Application Number
921,296
Filing Date
08/29/1997
Recommended Citation
Groppo, John G. Jr.; Robl, Thomas L.; and McCormick, Charles J., "Method for Improving the Pozzolanic Character of Fly Ash" (1998). Center for Applied Energy Research Faculty Patents. 31.
https://uknowledge.uky.edu/caer_patents/31
