Process for producing xylene

Details Process for producing xylene Process for producing xylene

1997-10-22

1998-12-08

Langel, Wayne

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By alkyl or aryl transfer between molecules, e.g.,...

585475, 585486, 585488, 585489, C07C 1508

Patent

active

058472568

ABSTRACT:
An improved process for producing xylene from feedstock containing C.sub.9 alkyl aromatic hydrocarbons with the aid of a catalyst capable of disproportionation, rearrangement, and dealkylation, wherein said improvement comprises performing the reaction in the presence of an aromatic hydrocarbon having one or more ethyl groups in an amount of 5 to 50 wt %.

REFERENCES:
patent: 2767231 (1956-10-01), Kennedy et al.
patent: 2960545 (1960-11-01), Seubold
patent: 3856873 (1974-12-01), Burress
patent: 4236996 (1980-12-01), Tabak et al.
patent: 4409413 (1983-10-01), Iwayama et al.
patent: 5004854 (1991-04-01), Yan
patent: 5516956 (1996-05-01), Abichandani et al.

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