Manufacture of lower aromatic compounds

Details Manufacture of lower aromatic compounds Manufacture of lower aromatic compounds

1977-03-04

1978-03-14

Davis, C.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

260672T, C10G 3506, C07C 358

Patent

active

040789900

ABSTRACT:
Certain acidic heterogeneous catalysts produce large yields of benzene, toluene and xylene from alkyl aromatics of at least nine carbon atoms by a mechanism different from the classical disproportionation reaction characteristic of acid catalysts. Typically, aromatic mixtures so derived from such stocks have unusually low content of ethyl benzene, thus greatly simplifying separation of xylene isomers.

REFERENCES:
patent: 3281483 (1966-10-01), Benesi et al.
patent: 3578723 (1971-05-01), Bowes et al.
patent: 3945913 (1976-03-01), Brennan et al.

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