Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By dealkylation
Patent
1978-03-16
1979-10-16
Davis, C.
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By dealkylation
252463, 252466PT, 252470, C07C 362
Patent
active
041713290
ABSTRACT:
Alkylaromatic charge hydrocarbons such as toluene are steam dealkylated in the presence of catalyst which typically contains oxides of nickel, chromium, and potassium on an activated high-purity alumina. It is a feature of this invention that the high-purity alumina is activated by calcining followed by addition thereto of alkaline earth metal such as calcium or magnesium. A test is disclosed according to which it may be determined which high-purity aluminas are suitable for use.
REFERENCES:
patent: 3271325 (1966-09-01), Davies et al.
patent: 3340011 (1967-09-01), Hoekstra
patent: 3932548 (1976-01-01), Rausch
patent: 3966790 (1976-06-01), Hindin
patent: 4008181 (1977-02-01), Dorawala et al.
Osmet, "Active Aluminas as Catalyst Supports for Treatment of Automotive Exhaust Emissions", SAE, N.Y. (1973), No. 730276, pp. 1-6, 11.
Estes John H.
Koniz Leon F.
Davis C.
Ries Carl G.
Seutter Carl G.
Texaco Inc.
Whaley Thomas H.
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