Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 31, 2007
Patent Application Number
10604549
Date Filed
July 30, 2003
Patent Primary Examiner
Patent abstract
One process for producing phosgene comprises: introducing a carbon monoxide stream to a metal oxide impregnated activated carbon, reducing a hydrogen sulfide concentration in the carbon monoxide stream to produce a cleaned stream, wherein a cleaned stream hydrogen sulfide concentration is less than or equal to about 20 ppm, and reacting carbon monoxide in the cleaned stream with chlorine to produce phosgene.
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