Method for removal of unburned carbon in fly ash

Details Method for removal of unburned carbon in fly ash Method for removal of unburned carbon in fly ash

2011-08-09

2011-08-09

Marcantoni, Paul (Department: 1731)

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

C106SDIG002, C209S164000, C209S166000, C366S012000, C366S241000, C366S244000

Reexamination Certificate

active

07993450

ABSTRACT:
The object is to remove unburned carbon in a fly ash in a stable and economically advantageous manner. A fly ash, water and a trapping agent are mixed together in a hybrid mixer (2), a shearing force is applied to the mixture to prepare a slurry containing surface-modified unburned carbon within a short time, a foaming agent is added to the slurry, and then the unburned carbon is separated by performing flotation separation in a flotator (11).

REFERENCES:
patent: 2009/0008302 (2009-01-01), Matsuo et al.
patent: 2009/0301938 (2009-12-01), Matsuo et al.
patent: 63-104668 (1988-05-01), None
patent: 63-143928 (1988-06-01), None
patent: 11-278914 (1999-10-01), None
patent: 3613347 (2004-11-01), None

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