The invention discloses a regenerated high-performance lubricating
grease of waste
internal combustion engine oil and a preparation method thereof. The preparation method comprises the steps of adding deep refined waste
internal combustion engine oil and
fatty acid into a reaction container, slowly heating till the
fatty acid is completely dissolved, dissolving
lithium hydroxide into water and then adding the solution into a reaction kettle, performing
saponification for 2-3 hours at 100-110 DEG, heating to 140 DEG C, adding 1 / 4 of the formula quantity of the waste
internal combustion engine oil, heating to 190-210 DEG C, refining at a high temperature for 10-20 minutes, adding the remaining waste internal
combustion engine oil, cooling to be below 160 DEG C, adding an
antioxidant, an extreme pressure agent, an oiliness agent and a
thickening agent, then performing
post treatment with a
homogenizer or by cyclic shearing, filtering and packing. The produced lubricating
grease has the characteristics of multiple effects, universality and the like, also has good lubricating performance and extreme pressure anti-wear performance, and can meet the requirements of most bearings for
lubrication and protection and realize low-cost recycling of the waste internal
combustion engine oil.