Application-specific finished lubricant compositions comprising a bio-derived ester component and methods of making same
a technology of bio-derived ester and finished lubricant, which is applied in the direction of lubricant composition, biofeedstock, organic chemistry, etc., can solve the problems of more complicated and expensive preparation of esters than their pao counterparts
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example 1
[0066]This Example serves to illustrate how various aspects of such above-described methods might be tailored to yield a hydraulic fluid (oil), in accordance with some embodiments of the present invention.
[0067]In some such above-cited embodiments, hydraulic oils can be prepared by blending a quantity of the bio-derived diester species (vide supra) with base oil and the following: zinc-based or ashless metal-free antiwear additives, antioxidants, metal deactivators, and rust inhibitor additives. Such hydraulic fluids can be engineered so as to keep metal-to-metal contact at a minimum, as required by all anti-wear hydraulic fluids, thereby helping to extend equipment life. Furthermore, these hydraulic oils can be designed for use in vane-, piston-, and gear-type pumps. These hydraulic oils will typically have a viscosity ranging from about 5 cSt to about 360 cSt—measured at 40° C., and they will typically have viscosity indices (VIs) ranging from about 95 to about 350, flash points r...
example 2
[0068]This Example serves to illustrate how various aspects of such above-described methods might be tailored to yield a turbine oil, in accordance with some embodiments of the present invention.
[0069]Turbine oils can be prepared by blending one or more bio-derived diester species (such as described in Section 3) with base oil and ashless additives, which typically include one or more corrosion inhibitors, antioxidants, foam inhibitors, demulsifiers and wear inhibitors. These turbine oils can be engineered to have high oxidative and thermal stability, resulting in longer lubricant life and less equipment down-time. In addition, to avoid water contamination, rapid separation from the oil enables quick settling of water so it may be drained from the system. Such turbine oils, as described herein, may be used in steam and gas turbines with and without reduction gear sets, as well as in centrifugal, rotary and reciprocating compressors requiring rust and oxidation protection.
example 3
[0070]This Example serves to illustrate how various aspects of such above-described methods might be tailored to yield a metalworking fluid, in accordance with some embodiments of the present invention.
[0071]Metalworking fluids can be prepared by blending the bio-derived diester species (i.e., one or more of those species described in Section 3) with or without base oil (base stock) and ashless and / or ash-containing additives. Typically, additives would include one or more antioxidants, metal deactivators, wear inhibitors, rust inhibitor additives and foam inhibitors. In accordance with some embodiments of the present invention, the metalworking fluids can be engineered to have high thermal and oxidation stability—providing long lubricant life, fewer oil changes, less build up on the parts being machined or moving equipment parts, added lubricity inherent with esters, increased solvency and increased up-time. Additionally, their low volatility results in reduced oil make-up and less...
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