METHOD OF PRODUCING DIAMOND-CONTAINING COMPOSITION Russian patent published in 2015 - IPC C10M125/00 C10M125/02 C10M149/00 B82B1/00 C10N30/06 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing a diamond-containing lubricating composition by mechanically mixing initial oil with a surfactant dissolved therein and detonation diamond-containing carbon pre-dried by vacuum drying in amount of 5-10 wt % at 80-110°C, wherein the surfactant used is a cationic nitrogen-containing surfactant in amount of 2-10% of the weight of the detonation diamond-containing carbon, and mixing is followed by holding for not more than 60 minutes in order to remove excess air, followed by treating the composition on a vibration-cavitation homogeniser at 80-110°C and feeding said composition into a separator, wherein the composition is fed onto the working surface of the rotor of the vibration-cavitation homogeniser in amount of not more than 0.5 g/cm²·with rotary speed not less than 15 m/s.

EFFECT: obtaining a lubricating composition with high sedimentation resistance using a highly efficient method using a sufficiently simple technique.

2 cl, 1 tbl, 2 ex