Lube Base Oil Comprising X-Type Diester Acid Dimer and Method for Preparing the Same
AssigneesSK Innovation Co., Ltd., SK Lubricants Co., Ltd.
InventorsHee Jung Jeon, Yong Woo Kim
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Abstract
The present invention relates to a preparation method of a lube base oil including a conversion of biomass fat to a fatty acid; a separation of a C18 unsaturated fatty acid from the fatty acid; a maximization of an oleic acid content through partial hydrotreating of the C18 unsaturated fatty acid; a synthesis of a dimer or higher-order oligomer through an oligomerization of the oleic acid; and an esterification of the oligomer, and relates to a lube base oil prepared therefrom. The lube base oil of the present invention contains an x-type diester dimer and has an excellent low-temperature stability and a high biodegradability resulting from its chemical structure, thus being ecofriendly.
Claims14
A preparation method of a lube base oil, the method comprising:
- converting biomass fat to a fatty acid;
- separating a C18 unsaturated fatty acid from the fatty acid;
- maximizing an oleic acid content through partial hydrotreating of the C18 unsaturated fatty acid;
- synthesizing an oligomer which is a dimer or a higher-order oligomer through an oligomerization of the oleic acid;
- and
- esterifying the oligomer,
- wherein the lube base oil includes an x-type diester dimer represented by the following Chemical Formula 1:
- where in the Chemical Formula 1, R represents an alkyl group, a ketone group, an aldehyde group or an ester group having 1 to 12 carbons.
A lube base oil comprising an x-type diester dimer which is represented by the following Chemical Formula 1:
- where in the Chemical Formula 1, R represents an alkyl group, a ketone group, an aldehyde group or an ester group having 1 to 12 carbons.
Dependencies are inferred from the claim text.