Preparation of linear alkylbenzenes

Details Preparation of linear alkylbenzenes Preparation of linear alkylbenzenes

1978-09-28

1980-08-05

Crasanakis, George

Chemistry of hydrocarbon compounds

Plural serial diverse syntheses

To produce aromatic

585455, 585826, 585935, C07C 1502, C07C 713

Patent

active

042163455

ABSTRACT:
Process for the preparation of alkylbenzenes by partial chlorination of linear C.sub.9 -C.sub.15 paraffins, catalytic alkylation of benzene with the resulting mixture and fractionation by distillation of the alkylation products.
At least a part of the unreacted paraffins recovered by fractionation and to be recycled to the chlorination stage is submitted, continuously or intermittently, to a purification treatment with molecular sieves.
The content in undesired by-products of the alkylbenzenes can thus be maintained at negligibly low values.

REFERENCES:
patent: 3053913 (1962-09-01), Norris
patent: 3383430 (1968-05-01), Hutson, Jr. et al.
patent: 3426086 (1969-02-01), Gray et al.
patent: 3931350 (1976-01-01), Sparks

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