Process for the preparation of alkanol alkoxylates

Details Process for the preparation of alkanol alkoxylates Process for the preparation of alkanol alkoxylates

C - Chemistry, Metallurgy

07

C

260/636.1

C07C 43/13 (2006.01) C07C 41/03 (2006.01) C08G 65/26 (2006.01) C08G 65/30 (2006.01)

Patent

CA 1194503

A B S T R A C T PROCESS FOR THE PREPARATION OF ALKANOL ALKOXYLATES Alkanol alkoxylates, useful, for example, as nonionic sur- factants, are prepared in accordance with the invention by re- acting at least one alkanol having 8 to 18 carbon atoms with at least one alkylene oxide having 2 to 4 carbon atoms at alkaline pH and in the presence of one or more soluble calcium compounds, and reducing the pH of the resulting alkoxylation mixture to 7 or below by a addition thereto of an acid comprising propionic acid, benzoic acid or a mixture of propionic and benzoic acids.

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