Organic compounds -- part of the class 532-570 series – Organic compounds – Nitriles
Patent
1989-05-01
1991-05-14
Brust, Joseph Paul
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitriles
558319, 558323, 558324, 558325, 558326, 558327, C07C25324, C07C25326
Patent
active
050157566
ABSTRACT:
An improved process is provided for the production of nitriles from hydrocarbons by reaction with an oxygen-containing gas comprising oxygen, air or a gas enriched in oxygen relative to air and ammonia in the presence of a suitable catalyst. In the process, a selective separator provides recycle of a substantial portion of the unreacted hydrocarbon as well as for a controlled amount of a gaseous flame suppressor in the system. The gaseous flame suppressor comprises a substantially unreactive hydrocarbon containing 1 to 5 carbon atoms, carbon dioxide and nitrogen when present in the feed to the ammoxidation reactor. The use of air or oxygen-enriched air in the feed to the ammoxidation reactor is particularly advantageous from an economic view in combination with a pressure swing adsorption unit as the selective separator. The process is characterized by high selectivity to the formation of the product.
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Maclean Donald L.
Ramachandran Ramakrishnan
Shukla Yagya
Brust Joseph Paul
Nemetz Carol A.
Pearlman Robert I.
The BOC Group Inc.
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