Method for preparing nano copper lubricating oil additive

Abstract

The present invention provides a method of preparing nanometer copper lubricant additive by a high gravity technology. Copper salt solution and reducer solution are processed for the liquid phase reduction reaction of cupric salt inside a high gravity machine, the solution after the reaction and extractant are mixed inside a static mixer and then stirred inside a reaction vessel for complete mixing reaction and the surface modification during the process of extraction and to be processed for standing and being layered, oil phase at the upper layer is obtained for pressure reduction and distillation to obtain a final product. The reaction speed of the method of the present invention is fast; the repeat reproducibility of the products between batches is good; the nanometer copper lubricant additive is prepared directly by a wet method, which does not require vacuum drying for preparing for nanometer copper dry powder, avoids the occurrence of agglomeration, simplifies the technical flow and has high product quality, high yield and short production period; the granularity of prepared nanometer copper powder reaches the nanometer grade (is less than 20nm) and is distributed quite narrowly, and the nanometer copper powder has very good dispersion stability in the lubricant.

Description

technical field [0001] The invention relates to a method for preparing nano-copper lubricating oil additive by adopting supergravity technology Background technique [0002] Hypergravity refers to the application technology of the force on matter to study the physical and chemical changes of matter in a hypergravity environment in an environment much greater than the earth's gravitational acceleration (9.8m / s2). As a high-tech, supergravity technology has great application prospects in industry. In a hypergravity environment, the molecular diffusion and interphase transfer processes between molecules of different sizes are much faster than those under a conventional gravity field. Flow contact occurs in porous media or channels in the environment, and the huge shear force tears the liquid into liquid films, liquid filaments and droplets on the micron to nanoscale, resulting in huge and rapidly renewed phase interfaces, enabling interphase mass transfer The rate is 1 to 3 o...

AI Technical Summary

Problems solved by technology

[0004] The invention overcomes the problems in the prior art that the speed of the nano-copper reduction reaction process is difficult to control, the mixing is uneven, and the particle size range of the nano-copper is wide. The need for mixing increases the concentration of copper salt in the reduction reaction, thereby providing a method for continuous industrial production of nano-copper lubricating oil additives with high efficiency, short production cycle, and high product quality

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