Continuous process for sulfonating alkyl aromatics

Details Continuous process for sulfonating alkyl aromatics Continuous process for sulfonating alkyl aromatics

1976-11-15

1978-09-12

Siegel, A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260505C, 260505E, C07C14324

Patent

active

041137655

ABSTRACT:
Disclosed is a continuous process for the sulfonation of an alkylaromatic reactant involving heating liquid sulfur trioxide in a vaporizer and mixing this sulfur trioxide gas stream with a hexane-alkylaromatic stream containing about 1 to about 3 wt. % quantity of a promoter, which can be either sulfuric acid or an alkyl benzene sulfonic acid, in a sulfonator - static inline mixer, mixing water with the sulfonated product as it passes to the water reactor - static inline mixer, passing the aqueous sulfonated product through degassing column-heat exchanger apparatus and separating the sulfonated product from the aqueous sulfuric acid. The reaction is conducted under controlled temperature and pressure conditions.

REFERENCES:
patent: 2448184 (1948-08-01), Lemmon
patent: 2573675 (1951-11-01), Bloch et al.
patent: 2768199 (1956-10-01), Luntz et al.
patent: 3024258 (1962-03-01), Brooks et al.

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