Synthesis of diester-based lubricants from...

C - Chemistry – Metallurgy – 10 – M

Patent

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C10M 105/36 (2006.01) C10M 105/32 (2006.01) C12P 7/40 (2006.01)

Patent

CA 2742811

The present invention is generally directed to methods of making diester-based lubricant compositions, wherein formation of diester species proceeds via esterification of epoxide intermediates, and wherein the epoxide intermediates are generated via an enzymatically-driven mechanism. 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 concerne des procédés de fabrication de compositions lubrifiantes à base de diesters, la formation des diesters passant par l'estérification d'intermédiaires époxydiques, ces intermédiaires époxydiques étant générés par un mécanisme enzymatique. Dans certains modes de réalisation, les procédés de fabrication de ces lubrifiants à base de diesters utilisent un précurseur issu de la biomasse et/ou des oléfines et/ou alcools de faible valeur (par ex., Fischer-Tropsch (FT)) pour produire des lubrifiants à base de diesters de valeur élevée. Dans certains modes de réalisation, ces lubrifiants à base de diesters sont obtenus à partir d'oléfines FT et d'acides gras. Les acides gras peuvent provenir d'une source biologique (c.-à-d. biomasse, source renouvelable) ou être obtenus à partir d'alcools FT par oxydation.

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