Biolubrificantes for large medium and small industrial compressors

Abstract

The invention is based on the development of biolubricants from vegetable oils, whose performance is superior to traditional lubricants currently used on the market, the vast majority of which are of petrochemical origin. Another great positive aspect is the rapid biodegradability, in less than 28 days more than 60% of the product biodegrades. In most countries, the disposal use after of these petrochemical products is prohibited, which creates a major problem and cost. The flexibility and the possibility of assembling molecules with different configurations generate lubricants with previously unimaginable performance, such as, for example, high lubricity, adjustable viscosity and low freezing points.

1 . Process for the production of polyol ester formulations characterized in that it is from palm kernel, palm, soybean, rapeseed, sunflower, corn, peanut, castor oil and their respective fatty acids or methyl or ethyl esters; 
     
     
         2 . Process, according to  claim 1 , characterized in that the vegetable or animal oils are in natural form or in the form of fatty acids, esters, hydrogenated, epoxidized, oxidized, dehydrogenated or polymerized. 
     
     
         3 . Process, according to  claim 1 , characterized in that the fatty materials make up 70 to 80% by weight of the formulation, preferably above 90%. 
     
     
         4 . Process according to  claim 1 , characterized in that the polyols used in the formulations are pentaerythritol, neopentyl glycol, trimethylolpropane, propylene glycol, di-propylene glycol, polypropylene glycol, ethylene glycol, diethylene glycol, polyethylene glycol, whose weight composition is below 30%, preferably below 10%. 
     
     
         5 . Polyol ester formulations synthesized by the process as defined in  claim 1 , characterized in that they are formulated alone or in mixtures to obtain the desired characteristics, both from a performance and economic point of view. 
     
     
         6 . Use of polyol ester formulations, as defined in  claim 5 , characterized in that they are for use in large, medium and small industrial compressors. 
     
     
         7 . Polyester formulations, according to  claim 5 , characterized in that they are biodegradable and can be discarded after use or recovered due to their high oxidative stability.