▎ 摘　　要

NOVELTY - Preparing graphene lubricating oil comprises e.g. (i) adding defoaming agent, dispersant and kerosene into high shear device, and stirring to obtain product A, (ii) adding graphene and powder to product A to obtain product B, (iii) adding base oil, antioxidant and wax to product B, and stirring to dissolve wax completely and obtaining product C, where mass ratio between base oil, antioxidant, wax and product B is 58-88:1-10:1-5:10-40, (iv) stirring product C, distilling at 40-80 degrees C, at a pressure of -0.1 to -1.5 MPa, cooling to recover distilled kerosene, and obtaining final product. USE - The method is useful in preparing graphene lubricating oil (claimed). DETAILED DESCRIPTION - Preparing graphene lubricating oil comprises (i) adding defoaming agent, dispersant and kerosene in a mass ratio of 0.5-3:0.5-3:1000 into high shear device, and stirring to obtain product A, (ii) adding graphene and powder to product A to obtain product B, where mass ratio between graphene, powder and product A is 0.5-4:10-40:60-90, (iii) adding base oil, antioxidant and wax to product B, and stirring to dissolve wax completely and obtaining product C, where mass ratio between base oil, antioxidant, wax and product B is 58-88:1-10:1-5:10-40, (iv) stirring product C for 15-60 minute, distilling at 40-80 degrees C, at a pressure of -0.1 to -1.5 MPa, cooling to recover distilled kerosene, where distillation product is graphene lubricating oil, defoaming agent is span-80, dimethyl silicone oil, non-silicone oil-based defoamer DF-520, and/or non-silicone oil-based defoamer DF-530; dispersant is triethylhexyl phosphoric acid, vinyl stearamide, stearic acid monoglyceride, polyethylene glycol, and/or monoalkenyl succinimide; powder is silica, talc, and/or kaolin; antioxidant is 2,6-tertiary butyl-4-methylphenol, bis(3,5-di-tert-butyl-4-hydroxybenzyl)sulfide, pentaerythritol tetrakis( beta -(3,5-tri-butyl-4-hydroxyphenyl)propionate), dodecanol esters, bis(tetradecyl alcohol), and/or bis (stearyl alcohol), and wax is paraffin, microcrystalline wax, and/or beeswax.