Production of Heavy Lubricating Oil Base Stocks and Analyses by Using a New Method – HPLC

The main objective of the present investigative work is the experimental production of heavy<br>lubricating oil base stocks and the study of the effect of chemical composition on physico-chemical<br>characteristics of the prepared lube oil samples. In the first process, solvent dewaxing, the mixture of<br>methyl ethyl ketone and methyl isobutyl ketone (MEK/MIBK) is used as a recent solvent in the<br>dewaxing process to obtain a significant yield of low pour point products and to compare this mixture<br>with MEK/toluene which is used in the industry process.