Method for producing conjugated diene
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United States of America Patent
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May 17, 2016
Grant Date -
Jan 9, 2014
app pub date -
Sep 9, 2013
filing date -
Mar 9, 2011
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Abstract
Disclosed is a method for producing a conjugated diene by subjecting a monoolefin having a carbon atom number of 4 or more and an oxygen gas to an oxidative dehydrogenation reaction by using a molybdenum-containing metal oxide catalyst under heat removal with a coolant, wherein an amount of molybdenum adhered onto a cooling heat transfer surface within a reactor is kept at not more than 20 mg/m2, or not only a surface roughness Ra of a cooling heat transfer surface within a reactor is not more than 3 μm, but a temperature difference between a reaction temperature and a coolant temperature is in the range of from 5 to 220° C.
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