Shell Oil Comapny

Theodorus A Bolsman

Joseph Reisberg

Riekert Kok

Hendrikus Hyacinthus Deuling

Hendrik T Verkouw

The invention relates to a detergent composition comprising an internal olefin sulfonate salt having from 8 to 26 carbon atoms, wherein at least 25% by weight of the internal olfein sulfonate salt is in the beta-hydroxy alkane sulfonate form. It has been found that internal olefin sulfonate salts having enhanced beta-hydroxy alkane sulfonate content provide excellent detergency.

Detergent composition containing an internal olefin sulfonate component

Compositions comprising alkylxylene sulfonate compounds of the formula ##STR1## wherein R' represents a C.sub.6 to C.sub.20 alkyl group and wherein M represents a hydrogen, a metal, an ammonium or an amine ion, are useful as surfactants, particularly in enhanced oil recovery techniques.

Alkylxylene sulfonate compositions

An aqueous organic sulfonate surfactant system containing an alkylpolyalkoxyphenylethersulfonate cosurfactant has a salt tolerance comparable to one containing NEODOL.RTM. 25-3S and has greater heat stability.

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Amsterdam, Netherlands

Theodorus A Bolsman