Continuous processes for the production of ethoxylates

Details Continuous processes for the production of ethoxylates Continuous processes for the production of ethoxylates

C - Chemistry, Metallurgy

07

C

C07C 41/03 (2006.01) C11D 1/72 (2006.01) C07C 43/23 (2006.01)

Patent

CA 2612050

The present invention provides continuous processes for the production of an ethoxylate from a C1 - C26 non-phenolic alcohol in the presence of a double metal cyanide ("DMC") catalyst. The inventive multi-stage continuous process produces an ethoxylate product with an essentially equivalent molecular weight distribution as compared to the same ethoxylate made by basic catalysis. The inventive single- stage continuous process produces ethoxylate products having only a slightly broader molecular weight distribution than the multi-stage process. The products made by the inventive multi-stage continuous process may offer advantages where the ethoxylate product is used in or as a surfactant.

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