Patent ID: 6803478
Filing Date: 2004-10-12
Classification: C07F

Abstract:
A process for the preparation of alk(en)ylphosphoric ester salts of the formula (I) and/or of the formula (II) in whichR1 and R2 are identical or different and, independently of one another, are a linear or branched alkyl or alkenyl radical having 6 to 30 carbon atoms and Xn+ is a cation with the valency n, where n is an integer, which comprises reacting a mixture alk(en)ylphosphoric esters of the formula (III) and of the formula (IV) in the form of their melts with a base from which the cation Xn+ arises, where the proportion of esters of the formula (III), based on the mixture, is greater than 60% by weight.