Patent ID: 7427588

Claim:
A process for preparing ether sulfonates of the formula: R 1 [—(O(R 2 O) m —(R 3 O) n —(R 4 )] y where: R 1 =alkyl, alkenyl, amine, alkylamine, dialkylamine, trialkylamine, aromatic, polyaromatic, cycloalkane, cycloalkene, R 2 =C 2 H 4 or C 3 H 6 or C 4 H 8 , R 3 =C 2 H 4 or C 3 H 6 or C 4 H 8 , R 4 =linear or branched C 7 H 14 SO 3 X to C 30 H 60 SO 3 X when y=1, R 4 =linear or branched C 7 H 14 SO 3 X to C 30 H 60 SO 3 X or H when y>1 but at least one R 4 must be linear or branched C 7 H 14 SO 3 X to C 30 H 60 SO 3 X, m≧1, n≧0, n+m=1 to 30+, y≧1, X=alkali metal or alkaline earth metal or ammonium or amine, where: an olefin sulfonic acid is reacted with the metal alkoxide of one or more from the group alkoxylated phenol, alkoxylated polyphenol, alkoxylated alkylphenol, alkoxylated polyalkylphenol, alkoxylated linear alcohol, alkoxylated branched alcohol, glycol, polyglycol, alkoxylated monoalkylamine, alkoxylated dialkylamine, monoalkanolamine, dialkanolamine, trialkanolamine.