Barium oxide/cresylic acid catalyzed ethoxylation

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

1979-05-04

1980-07-01

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568678, C07C 4102, C07C 4110

Patent

active

042107644

ABSTRACT:
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.degree. to about 200.degree. 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.

REFERENCES:
patent: 3475499 (1967-10-01), Winnich
patent: 3644535 (1972-02-01), Batty et al.

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