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US 8,013,205 B2Granted
Method for treating fly ash
AssigneeKarlsruher Institut Fuer Technologies
InventorRenata Cesnovar
Life of this patent
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Abstract
A method for treating fly ash from incineration plants having at least one combustion chamber includes precipitating fly ash in a dust separator, and treating the fly ash using a gaseous reducing agent at a temperature between 600 and 700° C. so as to selectively convert a metal sulfate into at least one of a sulfide and a metallic form of the metal sulfate.
Claims8
A method for treating fly ash from incineration plants having at least one combustion chamber, the method comprising:
- precipitating fly ash in a dust separator;
- treating the fly ash using a gaseous reducing agent at a temperature between 600 and 700° C. so as to selectively convert a metal sulfate into at least one of a sulfide and a metallic form of the metal sulfate.
Dependencies are inferred from the claim text.