Method for preparation of internal olefin sulfonate

Details Method for preparation of internal olefin sulfonate Method for preparation of internal olefin sulfonate

1978-08-02

1980-01-15

Siegel, A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C14302

Patent

active

041838670

ABSTRACT:
A method of preparing a light-colored internal olefin sulfonate at a high yield, which comprises sulfonating an internal olefin with SO.sub.3 gas under 1.3 moles per 1 mole of said olefin thereby producing a sulfonation mixture which still contains 10 to 20% by weight of unreacted olefin, adding anhydrous sodium sulfate and concentrated sulfuric acid to this sulfonation mixture thereby further sulfonating said unreacted olefin, neutralizing the resulting sulfonation product with caustic alkali and then hydrolyzing the thus neutralized product.

REFERENCES:
patent: 3428654 (1969-02-01), Rubinfeld et al.
Merck Index, 8th ed., p. 966.

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