Separation of cenospheres from fly ash

Details Separation of cenospheres from fly ash Separation of cenospheres from fly ash

C - Chemistry, Metallurgy

04

B

C04B 7/28 (2006.01) B01D 45/02 (2006.01) B07B 1/00 (2006.01) C04B 7/36 (2006.01)

Patent

CA 2621615

Methods for increasing the amount of cenospheres in a fly ash sample are disclosed. The cenospheres are obtained in a dry state by using air as the "fluid" media for separation. In one version, the invention is a two step process, that is, screen by size followed by density separation such as in a fluidizing vertical column by density. In another version of the invention, the separation by density is followed by screening by size. Additional cycles can improve purity as defined by concentration of cenospheres.

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