Process for preparing nonionic surfactants- oxyalkylation...

Details Process for preparing nonionic surfactants- oxyalkylation... Process for preparing nonionic surfactants- oxyalkylation...

C - Chemistry, Metallurgy

07

C

260/636.3

C07C 43/13 (2006.01) C07C 41/03 (2006.01) C07C 43/11 (2006.01) C08G 65/26 (2006.01)

Patent

CA 1247650

- 31 - PROCESS FOR PREPARING NONIONIC SURFACTANTS - OXYALKYLATION WITH PROMOTED BARIUM CATALYSTS ABSTRACT OF THE DISCLOSURE The process for preparing nonionic surfactants wherein a narrower molecular weight distribution is obtained by the use of a barium catalyst which comprises reacting a reactive hydrogen compound selected from the group consisting of monohydric alcohols having from about 8 to about 20 carbon atoms and a difunctional polypropylene oxide polymer having an average molecular weight in the range of 1000 to 5000 with an alkylene oxide having 2 to 4 carbon atoms at a temperature at which the reaction proceeds in the presence of at least a catalytic amount of a barium salt selected from the group consisting of barium hydroxide, barium alkoxides, barium phenoxides, hydrates thereof or mixtures thereof and a catalytic amount of an oxyalkylation catalyst promoter.

441891

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