Alkyl acetates as phase separation inhibitors in liquid hydrocarbon fuel and ethanol mixtures
AssigneeThe Dow Chemical Company
InventorHarry A. Smith
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Abstract
This invention is a method of preventing phase separation of hydrous ethanol and liquid hydrocarbon fuel mixtures comprising the addition of an effective amount of a phase separation inhibitor selected from the group of alkyl acetates which have: (a) a solubility parameter of about 8.4 to 9.8 (cal/cc).sup.1/2 ; and (b) a dipole moment of about 1.75 to 1.90 debye.
Claims15
A method for preventing a mixture of hydrous ethanol and a liquid hydrocarbon fuel from separating into two phases comprising adding to the mixture an effective amount less than about 1 percent by weight of the liquid hydrocarbon fuel and hydrous ethanol of a phase separation inhibitor wherein the inhibitor is selected from the group of alkyl acetates which have:
- (a) a solubility parameter of about 8.4 to 9.8 (cal/cc).sup.1/2 ;
- and
- (b) a dipole moment of about 1.75 to 1.90 debye.
A gasohol composition in which phase separation is inhibited comprising gasohol having added thereto an effective amount less than about 1 percent by weight of the gasohol, of an alkyl acetate phase separation inhibitor wherein the inhibitor is selected from the group of alkyl acetates which have:
- (a) a solubility parameter of about 8.4 to 9.8 (cal/cc).sup.1/2 ;
- and
- (b) a dipole moment of about 1.75 to 1.90 debye.
Dependencies are inferred from the claim text.