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US 4,820,673 AGranted
Alkoxylation using calcium catalysts and products therefrom
AssigneeUop LLC
InventorsRobert J. Knopf, Louis F. Theiling, Jr.
Life of this patent
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Abstract
Narrow, balanced alkoxylation product mixture distributions having at least one alkoxylation product constituting more than 20 weight percent of the mixture can be provided by modified, calcium-containing catalysts. Catalysts for alkoxylation processes can be produced from lime and can, with modification, be used to make the narrow, balanced alkoxylation product mixture distribution.
Claims31
A method for providing an alkoxylation catalyst, comprising solubilizing, at least partially, calcium oxide, calcium hydroxide, or mixtures thereof, by mixing any of them with an activator having the formula
- Z.sub.a --X--Q--Y--Z'.sub.b
- wherein X and Y are the same or different electronegative, hetero-atoms a selected from the group consisting of oxygen, nitrogen, sulfur and phosphorus;
- a and b are the same or different integers satisfying the valency requirements of X and Y;
- Q is an organic radical which is electropositive or essentially neutral relative as to X and/or Y;
- Z and Z' are the same or different and are either hydrogen or an organic radical which does not prevent said solubilizing, thereby forming a calcium-containing composition which has titratable alkalinity.
2 more elements
Dependencies are inferred from the claim text.