Boron-nitride-type borate lubricating oil additive and preparation method thereof

A lubricating oil additive, boron nitride type technology, applied in the directions of additives, chemical instruments and methods, lubricating compositions, etc., can solve the problems of complex production process, high production cost, poor hydrolysis resistance, etc., to reduce production cost and simplify Production process, effect of good hydrolytic stability

Inactive Publication Date: 2014-09-03
TIANJIN SURENERGY CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main problems in the application of boric acid ester products as lubricating oil additives are: the product has poor hydrolysis resistance, and in the production process, a large amount of solvent is needed to take away the water generated during the reaction. A large amount of solvents such as toluene, acetone or butanol are used as water-carrying agents, not only the production process is complicated, but also the production cost is high. Also due to the application of a large amount of organic solvents, the environment is polluted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0017] Specifically, the preparation method of described boron nitride type borate lubricating oil additive comprises the steps:

[0018] 1) Synthesis of tall oil diethanolamide

[0019] Put tall oil and diethanolamine in a container and react at 100°C to 120°C for 4 to 5 hours to obtain tall oil diethanolamide;

[0020] 2) Synthesis of Boron Nitride Borate Lubricating Oil Additives

[0021] Mix salicylaldehyde and n-butylamine, add ethanol, react in a reflux device at 50°C-60°C for 2-3 hours, then add tall oil diethanolamide prepared above and add boric acid to mix, stir evenly; stabilize the pressure to 260mmHg-270mmHg, 70°C-80°C, react for 1-1.5 hours; then depressurize to a stable pressure of 60mmHg-70mmHg, gradually heat to 90°C-100°C, react for 3-4 hours; cool down, filter to obtain a light yellow liquid.

[0022] The molar ratio of tall oil and diethanolamine in the step 1) is 1-1.5:2-3.

[0023] The molar ratio of salicylaldehyde and n-butylamine in the step 2) is 1...

Embodiment 1

[0031] 1. Synthesis of tall oil diethanolamide

[0032] Put 100 grams of tall oil and 40 grams of diethanolamine in a container, and react at 100° C. for 4 hours to obtain tall oil diethanolamide; the molar ratio of tall oil and diethanolamine is 1:2;

[0033] 2) Synthesis of Boron Nitride Borate Lubricating Oil Additives

[0034] Add 9 grams of ethanol after mixing 24 grams of salicylaldehyde with 7 grams of n-butylamine in a 500ml four-necked flask equipped with a mechanical stirrer, a thermometer, a distillation head and a reflux tube, and react at 60°C for 2 hours; then withdraw the reflux tube, add 40 grams of tall oil diethanolamide prepared above and add 16 grams of boric acid to mix, stir evenly; stabilize the pressure to 270mmHg, and react at 80°C for 1 hour; then reduce the pressure to a stable pressure of 70mmHg, gradually heat to 100°C, and react 3 hours; cool down and filter to obtain a light yellow liquid.

[0035] Determination of boron content in the product:...

Embodiment 2

[0039] 1. Synthesis of tall oil diethanolamide

[0040] Put 120 grams of tall oil and 55 grams of diethanolamine in a container, and react at 120° C. for 4 hours to obtain tall oil diethanolamide; the molar ratio of tall oil and diethanolamine is 1:2.5;

[0041] 2) Synthesis of Boron Nitride Borate Lubricating Oil Additives

[0042]Add 12 grams of ethanol after mixing 24 grams of salicylaldehyde with 14 grams of n-butylamine in a 500ml four-neck flask equipped with a mechanical stirrer, a thermometer, a distillation head and a reflux tube, and react at 50°C for 3 hours; then withdraw the reflux tube, add 50 grams of tall oil diethanolamide prepared above and add 24 grams of boric acid to mix, stir evenly; stabilize the pressure to 260mmHg, and react at 70°C for 1.5 hours; then reduce the pressure to a stable pressure of 60mmHg, gradually heat to 90°C, and react 4 hours; cool down and filter to obtain a light yellow liquid.

[0043] The boron content in the product is 1.0%; t...

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Abstract

The invention discloses a boron-nitride-type borate lubricating oil additive and a preparation method thereof. The preparation method comprises the following steps: putting tall oil and diethanolamine in a container, and reacting at 100-120 DEG C for 4-5 hours to obtain tall oil acetal amide; mixing salicylaldehyde and n-butylamine, adding ethanol, reacting at 50-60 DEG C in a reflux unit for 2-3 hours, adding the prepared tall oil acetal amide, adding boric acid, and uniformly mixing; reacting at 70-80 DEG C for 1-1.5 hours while keeping the pressure stable at 260-270 mmHg; depressurizing to the stable pressure of 60-70 mmHg, gradually heating to 90-100 DEG C, and reacting for 3-4 hours; and cooling, and filtering to obtain the light yellow liquid. The production method is simple, and has the advantages of low cost, high hydrolysis resistance of the product, high yield and environment friendliness.

Description

technical field [0001] The invention relates to a lubricating oil additive and a preparation method thereof, in particular to a boron nitride type borate lubricating oil additive and a preparation method thereof. Background technique [0002] In order to increase the anti-friction and anti-wear effect of lubricating oil, a small amount of lubricating oil additives are usually added to the lubricating oil. The traditional lubricating oil additives are sulfur, phosphorus or chlorine type anti-wear agents, which are corrosive to friction pair materials. selective. In particular, lubricating oil additives containing elements such as sulfur, phosphorus or chlorine will discharge a large amount of waste water, waste gas and pollutants during production and use, thus causing pollution to the environment. [0003] Boron nitride borate is an important class of boron-containing compounds. In recent years, it is mainly used in lubricating oil additives and automobile brake fluids. At...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/05C10M139/00C10N30/06
Inventor 王严绪
Owner TIANJIN SURENERGY CHEM
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