Synthesis of diester-based biolubricants from epoxides

C - Chemistry – Metallurgy – 10 – M

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C10M 105/38 (2006.01) C07C 67/26 (2006.01)

Patent

CA 2712435

The present invention is generally directed to methods of making diester-based lubricant compositions, wherein formation of diester species proceeds via direct esterification of epoxide intermediates. In some embodiments, the methods for making such diester-based lubricants utilize a biomass precursor and/or low value (e.g., Fischer-Tropsch (FT) olefins and/or alcohols) so as to produce high value diester-based lubricants. In some embodiments, such diester-based lubricants are derived from FT olefins and fatty acids. The fatty acids can be from a bio-based source (i.e., biomass, renewable source) or can be derived from FT alcohols via oxidation.

La présente invention porte d'une manière générale sur des procédés de fabrication de compositions de lubrifiant à base de diesters, dans lesquels la formation des espèces diesters se déroule par estérification directe d'intermédiaires époxydes. Dans certains modes de réalisation, les procédés de fabrication de tels lubrifiants à base de diesters utilisent un précurseur de biomasse et/ou une matière de faible valeur (par exemple des oléfines et/ou alcools de Fischer-Tropsch (FT)), de façon à produire des lubrifiants à base de diesters de valeur élevée. Dans certains modes de réalisation, de tels lubrifiants à base de diesters sont issus d'oléfines FT et d'acides gras. Les acides gras peuvent provenir d'une source d'origine biologique (par exemple une biomasse, une source renouvelable) ou être issus d'alcools FT par oxydation.

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