Lube base oil comprising X-type diester acid dimer and method for preparing the same
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United States of America Patent
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Jun 27, 2017
Grant Date -
Apr 7, 2016
app pub date -
Oct 7, 2015
filing date -
Oct 7, 2014
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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.
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