Process of inhibiting scale formation in aqueous systems using quaternary ammonium salts of .alpha.-1,4-thiazine alkanephosphonic acids
AssigneePetrolite Corporation
InventorPatrick M. Quinlan
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Abstract
This invention relates to quaternary ammonium salts of .alpha.-1,4-thiazine alkanephosphonic acids; and to the preparation and uses thereof in inhibiting scale formation in aqueous systems.
Claims10
A process of inhibiting scale formation in an aqueous solution which comprises treating said aqueous solution with an effective amount of a compound of the formula ##STR20## where R and R" are members selected from the group consisting of alkyl, alkenyl, cycloalkyl, aryl, alkaryl, aralkyl, and hydroxyphenyl and from the group consisting of alkyl, aralkyl, cycloalkyl, alkenyl, and alkynyl, respectively, R' is hydrogen or alkyl, Z is S, SO or SO.sub.2, M is hydrogen or a salt moiety and X is a halide, acetate, sulfonate or arylsulfonate.
Dependencies are inferred from the claim text.