EFFECTS OF ACID TYPES ON THE RECYCLING OF USED LUBRICATING OIL
Abstract This study focused on the effects of acid types on the recycling of used lubricating oil. Three different acids, H2SO4, HCl, and HNO3 were used for the treatment of used lubricating oil and subsequent neutralization of the oil with NaOH. The properties of fresh and used oil tested for were kinematic viscosity at 40 OC and 100 OC, viscosity index, flash point, pour point, specific gravity at 40 OC, water content, sulphur ...
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