Compositions: coating or plastic – Coating or plastic compositions – Inorganic settable ingredient containing
Reexamination Certificate
2006-05-03
2008-12-09
Marcantoni, Paul (Department: 1793)
Compositions: coating or plastic
Coating or plastic compositions
Inorganic settable ingredient containing
C106SDIG002, C423S237000
Reexamination Certificate
active
07462235
ABSTRACT:
A system and method for decomposing ammonia from fly ash contaminated with ammonia is provided which includes maintaining the temperature of a bed of ammonia-contaminated fly ash at a decomposition temperature greater than 500° F. and less than 842° F. to decompose the ammonia from the fly ash. In a preferred embodiment, the ammonia-laden fly ash is maintained at a temperature less than a lowest carbon combustion temperature at which substantial combustion of carbon in fly ash begins to occur. A preferred embodiment includes a first chamber operating at a decomposition temperature greater than 500° F. and less than 842° F. followed by a second chamber operating at a higher carbon combustion temperature for carbon burn-out.
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Cochran Joseph W.
Giampa Vincent M.
Marcantoni Paul
Nixon & Peabody LLP
Progress Materials Inc.
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