C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/365.2, 260/5
C07C 253/24 (2006.01) B01J 19/00 (2006.01) C07C 51/215 (2006.01) C07C 51/265 (2006.01) C07C 255/08 (2006.01) C07D 307/60 (2006.01)
Patent
CA 1320735
ABSTRACT PROCESS FOR THE PRODUCTION OF NITRILES AND ANHYDRIDES An improved process is provided for the production of anhydrides and nitriles from hydrocarbons by reaction with an oxygen-containing gas comprising oxygen, air or a gas enriched in oxygen relative to air and ammonia where a nitrile is desired, in the presence of a suitable cata- lyst. 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 hydro- carbon containing 1 to 5 carbon atoms, carbon dioxide and nitrogen when present in the feed to the ammoxidation/ oxidation reactor. The use of air or oxygen-enriched air in the feed to the ammoxidation/oxidation 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.
579550
Maclean Donald L.
Ramachandran Ramakrishnan
Shukla Yagya
Gowling Lafleur Henderson Llp
The Boc Group Inc.
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