Novel organic nitrogen-containing borate ester lubricating oil additive

A lubricating oil additive, nitrogen borate technology, applied in the direction of additives, organic chemistry, lubricating composition, etc., can solve the problems of complex production process, poor hydrolysis resistance, high production cost, etc., to reduce production cost, simplify production process, Effect of good hydrolytic stability

Inactive Publication Date: 2009-12-09
王严绪
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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.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1. Synthesis of mixed vegetable oil diethanolamide

[0020] Vegetable oil and diethanolamine were placed in a 500ml three-neck flask at a weight ratio of 100:18, and reacted at 120°C for 4.5 hours to obtain mixed vegetable oil diethanolamide;

[0021] Wherein, vegetable oil is castor oil and salad oil by weight ratio 9: 1 mixture;

[0022] 2. Synthesis of nitrogen-containing borate lubricating oil additives

[0023] In a 500ml three-neck flask equipped with a mechanical stirrer, a thermometer and a distillation head, take 150ml of the mixed vegetable oil diethanolamide prepared above, add 8.67 grams of boric acid, stir well; reduce the pressure to 150mmHg, and react at 70°C for 1.0 hour; then reduce the pressure to 100mmHg, gradually heated to 100°C, and reacted for 4 hours; cooled to 70°C, filtered, and packaged to obtain a nitrogen-containing borate lubricating oil additive with a yield of 90.2%.

[0024] Determination of boron content in the product: according to S...

Embodiment 2

[0028] 1. Synthesis of mixed vegetable oil diethanolamide

[0029] Vegetable oil and diethanolamine were placed in a 500ml three-necked flask at a weight ratio of 100:20, and reacted at 120°C for 4 hours to obtain mixed vegetable oil diethanolamide;

[0030] Wherein, vegetable oil is castor oil and salad oil by weight ratio 1: 9 mixture;

[0031] 2. Synthesis of nitrogen-containing borate lubricating oil additives

[0032] In a 500ml three-neck flask equipped with a mechanical stirrer, a thermometer and a distillation head, take 100ml of the mixed vegetable oil diethanolamide prepared above, add 7.51g of boric acid, stir well; reduce the pressure to 150mmHg, and react at 70°C for 1.0 hour; then reduce the pressure to 100mmHg, gradually heated to 100°C, and reacted for 4 hours; cooled to 70°C, added 30ml of base oil and stirred thoroughly, filtered, and packaged to obtain a nitrogen-containing borate lubricating oil additive with a yield of 93.2%.

[0033] The boron content i...

Embodiment 3

[0035] 1. Synthesis of mixed vegetable oil diethanolamide

[0036] Put castor oil and diethanolamine in a 500ml three-neck flask at a weight ratio of 100:10, and react at 100°C for 5 hours to obtain mixed vegetable oil diethanolamide;

[0037] 2. Synthesis of nitrogen-containing borate lubricating oil additives

[0038] In a 500ml three-neck flask equipped with a mechanical stirrer, a thermometer and a distillation head, take 100ml of the mixed vegetable oil diethanolamide prepared above, add 5.0g of boric acid, stir well; reduce the pressure to 100mmHg, and react at 80°C for 0.5 hours; then reduce the pressure to 70mmHg, gradually heated to 130°C, and reacted for 3 hours; cooled to 70°C, filtered, and packaged to obtain a nitrogen-containing borate lubricating oil additive with a yield of 88.5%.

[0039] The boron content in the product is 0.997%; the investigation of the hydrolytic stability of the product: the time is more than 1080 hours; the investigation of the anti-fri...

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Abstract

The invention relates to a novel organic nitrogen-containing borate ester lubricating oil additive. The adopted technical scheme is as follows: the preparation method of the organic nitrogen-containing borate ester lubricating oil additive comprises the following steps: placing vegetable oil and diethanolamine in a container, reacting the mixture at 100-130 DEG C for 3-5h to obtain the mixed vegetable oil ninol which is castor oil or salad oil or a mixture of castor oil and salad oil in random ratio; mixing the prepared mixed vegetable oil ninol with boric acid and stirring evenly; decompressing to 100-170mmHg and reacting the mixture at 60-80 DEG C for 0.5-1.5h; decompressing again to 70-100mmHg and gradually heating the obtained mixture to 100-130 DEG C and reacting for 3-6h; lowering the temperature and filtrating the product. The invention has the advantages of simple production method, low cost, high hydrolysis resistance and high yield, and is friendly to the environment.

Description

technical field [0001] The invention belongs to the field of chemical synthesis, in particular to the synthesis of lubricating oil additives. 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] Organic borates are an important class of boron-containing compounds. In recent years, they are mainly used in lubricating oil additives and automobile brake fluids. At present, the main problems in the application of boric acid ester produ...

Claims

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Application Information

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IPC IPC(8): C10M139/00C07F5/04C10N30/06
Inventor 王严绪
Owner 王严绪
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