Process for the production of concentrated aqueous dispersions of .alpha.-sulfofatty acide mono- and/or disalt
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsGilbert Schenker, Thomas Engels, Wolfgang Poly, Ansgar Behler
Life of this patent
Estimating the term…
Abstract
The invention relates to a process for the production of concentrated mono- and/or disalt dispersions of .alpha.-sulfofatty acids by sulfonation of saturated fatty acids and/or fatty acid mixtures with sulfur trioxide, surfactants being added during the neutralization stage to improve the flowability of the dispersions.
Claims13
A process for the production of concentrated mono- and disalt dispersions of .alpha.-sulfofatty acids having improved flow properties, comprising sulfonating saturated fatty acids or fatty acid mixtures, and neutralizing the sulfonated fatty acids or fatty acid mixtures with an aqueous base solution in the presence of a surfactant containing at least one hydrophobic organic radical and at least one hydrophilic group which is either liquid in bulk or in the form of a flowable aqueous solution or paste at a temperature of from 60.degree. C. to 90.degree. C.
In a process for producing concentrated mono- and disalt dispersions of .alpha.-sulfofatty acids having improved flow properties by sulfonating saturated fatty acids or fatty acid mixtures, the improvement comprising neutralizing the sulfonated fatty acids or fatty acid mixtures with an aqueous base solution in the presence of a surfactant containing at least one hydrophobic organic radical and at least one hydrophilic group which is either liquid in bulk or in the form of a flowable aqueous solution or paste at a temperature of from 60.degree. C. to 90.degree. C.
A process for the production of concentrated mono- and disalt dispersions of .alpha.-sulfofatty acids having improved flow properties, comprising sulfonating saturated fatty acids or fatty acid mixtures, and neutralizing the sulfonated fatty acids or fatty acid mixtures with an aqueous base solution in the presence of a surfactant containing at least one hydrophobic organic radical and at least one hydrophilic group which is ether liquid in bulk or in the form of a flowable aqueous solution or paste at a temperature of from 60.degree. C. to 90.degree. C., said surfactant being present in the amount of from 0.1 to 30 parts by weight, based on 100 parts by weight of unneutralized sulfonated fatty acids or fatty acid mixtures.
Dependencies are inferred from the claim text.