Barium oxide/cresylic acid catalyzed ethoxylation

Details Barium oxide/cresylic acid catalyzed ethoxylation Barium oxide/cresylic acid catalyzed ethoxylation

C - Chemistry, Metallurgy

07

C

260/636.3

C07C 43/10 (2006.01) C07C 41/03 (2006.01)

Patent

CA 1120060

ICR 6382 BARIUM OXIDE/CRESYLIC ACID CATALYZED ETHOXYLATION Abstract of the Disclosure Cresylic acid (phenol or alkylated phenols) is used to promote barium oxide or hydroxide which is used as an ethoxylation catalyst for the reaction of ethylene oxide and alkanols of all classes. The reaction is carried out at temperatures of from about 150 to about 200°C to yield the ethoxylated product. The product obtained has a very narrow high adduct distribution with low levels of by-products and unreacted free alcohols. Calcium and magnesium oxides show negligible catalytic effect.

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