Process for the preparation of alkoxylates having a narrow...

Details Process for the preparation of alkoxylates having a narrow... Process for the preparation of alkoxylates having a narrow...

C - Chemistry, Metallurgy

07

C

260/636.3

C07C 41/02 (2006.01) C07C 41/03 (2006.01) C07C 43/11 (2006.01)

Patent

CA 2040834

HOE 90/F 905 Abstract of the disclosure Process for the preparation of alkoxylates having a narrow homolog distribution In the process described, the alkoxylation of compounds containing active hydrogen atoms is carried out using antimony pentahalides as catalyst by first preparing a catalyst premixture by dissolving antimony pentahalide in a partial amount of the compound intended for alkoxyla- tion while maintaining a temperature of at most 60°C and a concentration of antimony pentahalide of at most 30 mol %, combining the prepared catalyst premixture or a part thereof as a catalyst component with the residual amount of the compound to be alkoxylated and reacting the starting mixture thus obtained with the alkylene oxide.

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