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Preparation method of composite nano anti-wearing additive used for lubricant oil

A nano-anti-wear and additive technology, which is applied in the direction of additives, lubricating compositions, petroleum industry, etc., can solve the problems of poor dispersion and unsatisfactory anti-friction effect, and achieve the effect of improving anti-wear and anti-extreme pressure performance

Active Publication Date: 2018-04-06
唐山诚佑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the poor dispersibility of the composite nano anti-wear additive for lubricating oil in the prior art and the unsatisfactory anti-friction effect, the purpose of the present invention is to provide a composite nano anti-wear additive for lubricating oil, which can uniformly Dispersed in lubricating oil, and has excellent anti-friction effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A preparation method of composite nano anti-wear additive for lubricating oil:

[0036] (1) 200g Mg(NO 3 ) 2 with 80g Al(NO 3 ) 3 Mix evenly in the aqueous solution, then add 110g of sodium hydroxide, adjust the pH of the solution to 10.5, crystallize at 100°C for 6 hours, and centrifuge the product until neutral to obtain a hydrotalcite precursor;

[0037] (2) React 100g of aluminum chloride and 40g of ethylamine in water until the precipitate disappears completely, then add 30g of sodium silicate, 10g of ammonium molybdate, and 7g of butyl titanate, and mix well to obtain a mixed system 1;

[0038] (3) Add hydrotalcite precursor and 12g graphene to the mixed system 1, react at 90°C for 5h, then add 70g hydrochloric acid to adjust the pH of the system to be 4, and obtain the pre-product;

[0039] (4) Calcining the pre-product at a temperature of 450° C. for 3 hours in nitrogen to obtain a composite nano anti-wear additive for lubricating oil;

[0040] The composit...

Embodiment 2

[0044] A preparation method of composite nano anti-wear additive for lubricating oil:

[0045] (1) 180g Zn(NO 3 ) 2 with 45g Al(NO 3 ) 3 Mix evenly in the aqueous solution, then add 100g of potassium hydroxide, adjust the pH of the solution to 10.5, crystallize at 80°C for 5h, and centrifuge and wash the product until neutral to obtain a hydrotalcite precursor;

[0046] (2) React 100g of aluminum sulfate and 30g of n-butylamine in water until the precipitate completely disappears, then add 25g of sodium silicate, 8g of ammonium molybdate, and 60g of tetraethyl titanate, and mix well to obtain a mixed system 1;

[0047] (3) Add hydrotalcite precursor and 10g graphene to the mixed system 1, react at 70°C for 4h, then add 60g nitric acid to adjust the pH of the system to be 4, and obtain the pre-product;

[0048] (4) Calcining the pre-product at a temperature of 400° C. for 4 hours in nitrogen to obtain a composite nano anti-wear additive for lubricating oil;

[0049] The co...

Embodiment 3

[0053] A preparation method of composite nano anti-wear additive for lubricating oil:

[0054] (1) 210g Cu(NO 3 ) 2 with 120g Fe(NO 3 ) 3 Mix evenly in the aqueous solution, then add 120g of sodium hydroxide to adjust the pH of the solution to 10.8, crystallize at 110°C for 9 hours, and centrifuge the product until neutral to obtain a hydrotalcite precursor;

[0055] (2) React 100 g of aluminum nitrate and 50 g of n-hexylamine in water until the precipitate completely disappears, then add 35 g of sodium silicate, 12 g of ammonium molybdate, and 85 g of butyl titanate, and mix well to obtain a mixed system 1;

[0056] (3) Add hydrotalcite precursor and 15g graphene to the mixed system 1, react at 110°C for 7h, then add 78g sulfuric acid to adjust the pH of the system to be 5, and obtain the pre-product;

[0057] (4) Calcining the pre-product at a temperature of 500° C. for 4 hours in nitrogen to obtain a composite nano anti-wear additive for lubricating oil;

[0058] The c...

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Abstract

The invention relates to the field of anti-wearing technology of lubricant oil and particularly relates to a preparation method of a composite nano anti-wearing additive used for lubricant oil. The preparation method includes the steps of: 1) preparing a hydrotalcite precursor; 2) performing a reaction to an aluminum source and fatty amine in water until precipitates are eliminated completely, andadding water-soluble silicate, molybdate and organo-titanate, uniformly mixing the component to form a first mixture system; 3) adding the hydrotalcite precursor and graphene and performing a reaction for 3-8 h at 60-120 DEG C, regulating the pH of the system to 3-5 to obtain a pre-product; 4) calcining the pre-product in inert gas to obtain the composite nano anti-wearing additive. In the invention, by adding the nano-particles to the hydrotalcite precursor and graphene, the anti-wearing nano-particles can enter the layered hydrotalcite-like compound layers and graphene layers and are uniformly dispersed in the system and blended with the lubricant oil well. The additive can effectively improve anti-wearing and anti-extreme pressure performances of the lubricant oil.

Description

technical field [0001] The invention relates to the technical field of lubricating oil antiwear, in particular to a method for preparing a composite nano antiwear additive for lubricating oil. Background technique [0002] The main components of lubricating oil include lubricating base oil and various organic or inorganic, liquid or solid lubricating oil additives. They are compounded into corresponding lubricating oil according to a certain ratio. Lubricating base oils are mainly divided into three categories: mineral base oils, synthetic base oils and vegetable oil base oils. With the development of technology, more and more equipment components will work under more severe working conditions. Therefore, synthetic lubricating oil has become a lot of The base oil composition of lubricating oil that must be used under special working conditions. [0003] One of the main functions of lubricating oil is anti-wear effect, so anti-wear additive is one of the most important comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M125/00C10M125/02C10M125/10C10M125/26C10N30/06
CPCC10M125/00C10M125/02C10M125/10C10M125/26C10M2201/041C10M2201/062C10M2201/105C10N2030/06C10N2030/42C10N2030/43
Inventor 汪涛
Owner 唐山诚佑科技有限公司
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