C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/685.2
C07C 15/02 (2006.01) B01J 29/40 (2006.01) C07C 2/66 (2006.01)
Patent
CA 1103703
9514 ETHYLATION OF AROMATIC COMPOUNDS ABSTRACT OF THE DISCLOSURE A catalytic process is provided for the ethylation of mono alkyl benzenes wherein the alkyl substituent contains 1 or 2 carbon atoms, i.e., toluene or ethylbenzene, by con- tacting the same with ethylene in the presence of hydrogen under conversion conditions including a temperature between about 350 and about 500°C, a pressure greater than atmospheric but less than 400 psig, employing a hydrogen to ethylene mole ratio in the approximate range of 0.75 to 10 and in the presence of a catalyst comprising a crystalline aluminosilicate zeolite, which zeolite is characterized by an activity in terms of alpha value, of between about 2 and about 5000, a xylene sorption capacity greater than 1 gram/100 grams of zeolite and an ortho xylene sorption time for 30% of said capacity of greater than 10 minutes, said sorption capacity and sorption time being measured at 120°C and a xylene pressure of 4.5 ? 0.8 mm. of mercury, said crystalline aluminosilicate zeolite further being characterized by a silica to alumina of at least about 12 and a constraint index, as hereinafter defined, within the approximate range of 1 to 12, whereby aging of said catalyst during ethylation is substantially reduced over comparable reaction carried out in the absence of hydrogen. -1-
303961
Kirby Eades Gale Baker
Mobil Oil Corporation
LandOfFree
Ethylation of aromatic compounds does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ethylation of aromatic compounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ethylation of aromatic compounds will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-731787