Synthesis of synthetic oils

Lubricants have been used in various industries, such as drilling, aviation, automotive, factories, and food processing. The food grade lubricants that are available in the market are mostly produced from refined naphthenic mineral oil or white oil, which are not promisingly safe-based oils. Mineral oil-based lubricants are harmful to human beings and the environment, and also there is another issue of its poor biodegradability and toxicity which has led to health problems on a long term basis.1 Synthetic polyol esters are used as environmentally acceptable base fluids in high performance lubricants. A very good low temperature behaviour, high thermo-oxidative stability of some types, very high viscosity index, good anti wear and low evaporation properties have led to their use in many lubricants. Compromise between viscosity, volatility and cost influences the choice of base stocks for their effective ecofriendly formulations.2 Generally, ester-based biolubricants can be prepared via esterification reactions between polyhydric alcohols with fatty acids in the presence of acid catalyst.3 Herein, we report the synthesis of the esters using polyhydric alcohols andcarboxylic acids in toluene solvent at 250 ° C, whose structures were determined on the basisof their mass spectrum, 1H NMR, X-ray, TGA, and IR spectroscopic data.

Keywords:

Synthetic oils , Synthetic esters , Bio lubricants , Polyol ester