Chemistry of inorganic compounds – Nitrogen or compound thereof – Ammonia or ammonium hydroxide
Reexamination Certificate
2007-08-29
2009-12-15
Vanoy, Timothy C (Department: 1793)
Chemistry of inorganic compounds
Nitrogen or compound thereof
Ammonia or ammonium hydroxide
C423S522000, C423S545000, C127S037000
Reexamination Certificate
active
07632479
ABSTRACT:
A process for producing ammonia and sulfuric acid from a stream comprising ammonium sulfate is provided. The process comprises the steps of heating the stream to produce ammonia and a decomposition product comprising one or more than one of a bisulfate salt, a pyrosulfate salt, or a combination thereof. The ammonia produced is recovered, and water is added to the decomposition product to produce a stream comprising the decomposition product. The stream comprising the decomposition product is processed by acid retardation to obtain a sulfuric acid stream and a stream comprising one or more than one sulfate salt.
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Curren Meredith
Foody Brian
Tolan Jeff
Fitzpatrick ,Cella, Harper & Scinto
Iogen Energy Corporation
Vanoy Timothy C
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