Process for the continuous preparation of sulfonates derived fro

Details Process for the continuous preparation of sulfonates derived fro Process for the continuous preparation of sulfonates derived fro

1981-01-09

1982-08-17

Niebling, John F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C14390, C11D 128

Patent

active

043448895

ABSTRACT:
The starting material is subjected to the action of a sulfonating agent; the sulfonation product so obtained is degassed (2) and treated with slightly aqueous methanol in order to obtain, on the one hand, an ester phase containing the unsulfonated starting material which is returned to the sulfonation stage and, on the other hand, a methanol phase which contains the desired sulfonic acids and which is subjected to evaporation permitting the separation of the methanol from the said sulfonic acids.

REFERENCES:
patent: 2863887 (1958-12-01), Beches
patent: 3083146 (1958-11-01), Sweeney et al.
patent: 3225086 (1963-04-01), Sias et al.
patent: 3424770 (1969-01-01), Stein
"JOACS" by Stein and Baumann, vol. 52, pp. 323, 329 (1975).
"JOACS", by Kapur, Solomon and Bluestein, vol. 55, p. 549 (1978).
"Neftekhimiha", vol. 15, No. 5, pp. 760-762 (1975).

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