B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
252/1.B, 260/474
B01J 21/12 (2006.01) B01J 27/02 (2006.01) B01J 27/24 (2006.01) B01J 29/06 (2006.01) B01J 37/20 (2006.01) C07B 43/02 (2006.01) C07C 201/08 (2006.01) C07C 205/06 (2006.01) C07C 205/12 (2006.01) C07C 205/37 (2006.01) C07C 205/57 (2006.01)
Patent
CA 1177462
ABSTRACT OF THE DISCLOSURE Aromatic compounds are nitrated in the vapor phase via a process comprisingin contacting the aromatic compound with a nitrating agent in the presence of a nitration promotion catalyst which comprises the adduct of: (a) an alumina-silica-metal oxide combination represented by the formula: (Al2O3)4(SiO2)b(M2/nC)c wherein M is a metal cation selected from the group consisting of the lanthanides or rare earths, Groups 1b, 2b, 5b, 6b, 7b, and 8 of the Periodic Table of the Elements, and mixtures thereof, and a, b, and c repre- sent weight percent of the Al2O3, SiO2, and M2/nO components, respectively, in the alumina-silica-metal oxide combination, with a being 0 to 100, b being 0 to 100, and c being 0 to 50, and n represents an integer from 1 to 7 of the valence of the metal cation, with the proviso that the sum of (a + b) must be greater than 0, and (b) a catalytically effective amount of sulfur trioxide.
413841
Schumacher Ignatius
Wang Kang-Bo
Mcfadden Fincham
Solutia Inc.
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