Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1977-04-15
1978-06-13
Gantz, Delbert E.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260669R, 260671R, C07C 352, C07C 1510
Patent
active
040949214
ABSTRACT:
A catalytic process is provided for the ethylation of a mono alkyl benzene wherein the alkyl substituent contains 1 or 2 carbon atoms, i.e. toluene or ethylbenzene, to selectively produce the para and meta derivatives of said mono alkyl benzene to the exclusion or substantial exclusion of the ortho derivative thereof by contacting said mono alkyl benzene, under conversion conditions, with an ethylating agent 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, and preferably between about 20 and about 500, a xylene sorption capacity greater than 1 gram/100 grams of zeolite and an ortho xylene sorption time for 30 percent of said capacity of greater than 10 minutes, said sorption capacity and sorption time being measured at 120.degree. C. and a xylene pressure of 4.5 .+-. 0.8 mm. of mercury, said crystalline aluminosilicate zeolite being further characterized by having a silica to alumina ratio of at least about 12 and a constraint index, as hereinafter defined, within the approximate range of 1 to 12, said catalyst having been subjected to steam treatment at a temperature between about 250 and about 1000.degree. C. for a period of between about 0.5 and about 100 hours.
REFERENCES:
patent: 3299155 (1967-01-01), Adams
patent: 3525776 (1970-08-01), Berger
patent: 3751506 (1973-08-01), Burress
patent: 3965207 (1976-06-01), Weinstein
patent: 3965209 (1976-06-01), Butter et al.
patent: 4001346 (1977-01-01), Chu
patent: 4002697 (1977-01-01), Chen
Kaeding Warren W.
Young Lewis B.
Barclay Raymond W.
Gantz Delbert E.
Huggett Charles A.
Mobil Oil Corporation
Spresser C. E.
LandOfFree
Selective ethylation of mono alkyl benzenes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Selective ethylation of mono alkyl benzenes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selective ethylation of mono alkyl benzenes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-9878