A Process for the Production of Φ-Sulfo Fatty Methyl Ester Sulfonates (Φ-MES)

Author:

Cohen L.1,Roberts D. W.2,Pratesi C.3

Affiliation:

1. Escuela Politécnica Superior de Algeciras. Universidad de Cádiz. Avda Ramon Puyol s/n. 12202 Algeciras. Spain

2. Liverpool John Moores University

3. Sasol S.p.A., Milan, Italy

Abstract

Abstract Φ-Sulfo Fatty Methyl Esters sulfonates (Φ-MES) were obtained via sulfoxidation of fatty acid methyl esters (FAME) with SO2, O2, and ultraviolet light of appropriate wavelength. Expectedly, these products may be used as linear alkylbenzene sulfonate (LAS) and alkyl ether sulfate (AES) partners, either in heavy-duty or in hand dishwashing liquids. Φ-MES are new anionic surfactants that can be regarded as potential components for detergent formulations and body care products as well. In this work we summarize the most relevant results of our research started fifteen years ago, on the synthesis, separation and analysis of Φ-sulfo fatty methyl ester sulfonates known as Φ-MES, and we update our last findings. We have to point out that we are for the time being, the only research group in the world to have published our research on Φ-MES. This paper describes the optimum batch conditions for the sulfoxidation of FAME and a reaction mechanism is proposed. The paper depicts an improved workup for the separation of reaction products from non reacted methyl ester and the GC-MS analysis of Φ-sulfo fatty methyl ester sulfonate is shown. Finally, an interpretation of conversion and selectivity of sulfoxydation reaction is given.

Publisher

Walter de Gruyter GmbH

Subject

Condensed Matter Physics,General Chemical Engineering,General Chemistry

Reference17 articles.

1. Alpha-Sulfo Methyl Esters;HAPPY,1989

2. Identification of the Products from the Sulfonation of an Oleic Acid Methyl Ester;Tenside Surfactants and Detergents,2008

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