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US 4,081,515 AGranted
Catalytic conversion of an ammonium sulfate to sulfur dioxide and ammonia
AssigneeInstitut Francais du Petrole
InventorsHenri Gruhier, Andre Deschamps, Philippe Renault
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Abstract
Molten ammonium sulfate is converted to ammonia and sulfur dioxide by heating in the presence of at least one molybdenum and/or tungsten compound, preferably at a temperature in the range of 350.degree. to 500.degree. C.
Claims8
In a process for converting molten ammonium sulfate to ammonia and sulfur dioxide, in which said molten ammonium sulfate is contacted with a catalyst and ammonia and sulfur dioxide are collected, the improvement which comprises using a catalyst selected from molybdenum and/or tungsten compounds.
Dependencies are inferred from the claim text.