Extreme pressure anti-wear additive, and preparation method thereof and use thereof in lubricating oil

Abstract

Provided are an extreme pressure anti-wear additive, a preparation method thereof and use thereof in a lubricating oil. The preparation method of the extreme pressure anti-wear additive includes: step 1: mixing a cerium dioxide dispersion with a 2-methylimidazole aqueous solution, and conducting a first stirring and a first filtering in sequence to obtain a first solid powder; step 2: mixing the first solid powder with a soluble cobalt salt solution, and conducting s second stirring and a second filtering in sequence to obtain a second solid powder; and step 3: repeating the step 1 and the step 2 for the second solid powder to obtain the extreme pressure anti-wear additive.

Dependencies are inferred from the claim text.