An example of blends in different viscosity ranges is reported in table 1.


Table 1.


Such blends are optimised for replacement of Group I oils in industrial lubricants. The combination of naphthenics and Group II oils results in a product with superior low temperature properties compared to the equivalent Group I oil, as well as very good response to oxidation inhibitors.


Most importantly, the adjustment of the blend enables it to closely replicate the physical and chemical properties of Group I oils commonly used in industrial lubricants with a minimum need for formulation adjustments.


Examples of applications where blends of naphthenic and Group II or III oils are used include hydraulic fluids, metalworking fluids, lubricating greases, and additive carrier oils.


To conclude, the ongoing rationalisation of Group I capacity is highly likely to continue and even increase during the coming five years, leading to a reshaping of the global paraffinic pool in favour of Group II and III. The disappearance of Group I oils will create both a viscosity and a solvency gap, which can be filled by blends of naphthenic and Group II or III paraffinic oils. These blends, by closely replicating the chemical and physical properties of Group I oils, will enable a smooth conversion in industrial lubricant formulations, with a minimum need for formulation adjustments.


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