Patent ID: 9688936
Date: 2017-06-27
CPC Classifications: C10M,C10N

Claim:
1. 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.