An oil-based nanometer boric acid additive capable of saving energy and reducing emission, a preparing method thereof and applications of the additive

Abstract

An oil-based nanometer boric acid additive capable of saving energy and reducing emission, a preparing method thereof and applications of the additive are disclosed. The additive is prepared from, by weight, 4-7 parts of boric acid, 55-75 parts of carrier oil, 10-20 parts of a dispersant, 5.2-7.5 parts of a silane coupling agent, 1-3 parts of an emulsifier, 10-20 parts of an organic solvent and 5-8 parts of a metal passivator. The preparing method includes fully mixing and reacting the boric acid, the silane coupling agent and the emulsifier to obtain modified boric acid, adding the modified boric acid into the carrier oil comprising an organic solvent, a Mannich base ashless dispersant and a polyamide ashless dispersant, shearing, dispersing, removing the solvent, adding the metal passivator, fully mixing the metal passivator, and reacting. The additive can be applied into lubricating oil or fuel oil.

Description

technical field [0001] The invention belongs to the technical field of lubricating oil additives and fuel oil additives, in particular to a general-purpose nano boric acid ashless friction-reducing, anti-wear, combustion-supporting and emission-reducing additive for internal combustion engine lubricating oil and fuel oil. Background technique [0002] Nowadays, automobile exhaust emissions pollute the environment, leading to the rise of PM and the shortage of oil resources, which have always been the common concern of all countries in the world. With the rapid development of my country's economy, the number of automobiles has increased sharply, and the consumption of oil will increase greatly. At the same time, the emission of automobile exhaust It is also growing day by day, so energy saving and emission reduction has become an urgent problem that needs to be solved urgently. [0003] At present, in the field of lubricating oil additives, low-sulfur, low-phosphorus, and low-...

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Problems solved by technology

Borates and transition metal boron compounds contain metal elements and are not suitable for use in low-ash or ash-free lubricating oils. They are easy to generate combustion residues in fuel oils and are not suitable for use; high-hardness boron compounds such as boron nitride and boron carbide , with a high melting point (generally above 2000°C), mixed with fuel oil, it is easy to generate a large amount of combustion residue, block the exhaust device, and should not be used in fuel oil; boric acid is a monobasic weak acid with a low melting point (169°C), But at present, boric acid is mostly used in medicine, personal health care products, insecticide, anticorrosion, catalyst, glass manufacturing, explosives manufacturing and nuclear fission rate control in nuclear power plants, etc., and only a small part is used in the production of boronated dispersants and borates in petroleum products. Organic compounds such as boric acid lose their excellent physical properties, combustion-supporting catalytic properties, etc. after organic reactions, and boric acid is easy to decompose when exposed to water, so it is necessary to uniformly disperse it in the oily carrier without destroying the compound form of boric acid itself To give full play to its excellent performance and realize large-scale industrial production, this technology currently belongs to a blank field

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