Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By condensation of entire molecules or entire hydrocarbyl...
Patent
1980-12-19
1982-07-27
Davis, Curtis R.
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By condensation of entire molecules or entire hydrocarbyl...
585466, C07C 268
Patent
active
043419135
ABSTRACT:
Production of cumene by alkylation of benzene with propylene on a solid phosphoric acid catalyst, using a first step with a plurality of catalyst beds in series and a second step with a single catalyst bed, using an overall benzene/propylene molar ratio of at least 6:1, continuously delivering the benzene to the first bed, continuously delivering a series of streams of liquid propylene respectively to the first bed and, in the form of a cold stream, between each pair of contiguous beds, and using a benzene/propylene molar ratio higher than 16:1 at the inlet of each bed of the first step, and higher than 25:1 at the inlet of the bed of the second step.
REFERENCES:
patent: 2120702 (1938-06-01), Ipatieff et al.
patent: 2613188 (1952-10-01), Mavity
patent: 3813451 (1974-05-01), Canfield et al.
patent: 4051191 (1977-09-01), Ward
patent: 4108914 (1978-08-01), Gewartowski
Calcagno Benedetto
Divo Claudio
Sartorio Emanuele
Verde Luigi
Davis Curtis R.
Euteco Impianti S.p.A.
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