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Method for producing phosphor boronation ashless dispersant

An ashless dispersant, phosphorus boron technology, used in additives, petroleum industry, lubricating compositions, etc., can solve the problems of producing boron slag, the quality of boronization is not good enough, etc., and achieve the effect of improving quality and improving anti-wear performance

Active Publication Date: 2008-05-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] US4857214 and US5198133 provide methods for phosphating or boronizing ashless dispersants. The prepared phosphating and boronizing ashless dispersants have good anti-wear performance, but they are prone to boron slag and the quality of boronization is not good enough

Method used

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  • Method for producing phosphor boronation ashless dispersant
  • Method for producing phosphor boronation ashless dispersant
  • Method for producing phosphor boronation ashless dispersant

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0032] In a three-neck flask equipped with a heating and stirring device, add 195g of monopolyisobutenyl succinimide T151, 21.5g of di-n-butyl phosphite T304, 7.8g of boric acid, 11g of ethoxylated tallow amine (Ethomeen T- 12), 1g n-butanol, 2.2g water, feed nitrogen, stir at 95±5°C for 3h, gradually heat up to 110°C, remove water and n-butanol under 40mmHg pressure, the obtained transparent liquid is the Phosphorus boride ashless dispersant, no boron slag was found after the product was filtered, and its thermal oxidation stability is shown in Table 1.

example 2

[0034] In a three-neck flask equipped with a heating and stirring device, add 195g of monopolyisobutenyl succinimide T151, 38.5g of phosphoric acid, 11.8g of boric acid, 19g of ethoxylated coconut oil alkylamine (EthomeenC-12), 4.7 g n-butanol, feed nitrogen, stir at 85±5°C for 6 hours, gradually raise the temperature to 110°C, remove water and n-butanol under a pressure of 30mmHg, and the obtained transparent liquid is the phosphorus boride ashless dispersant of the present invention, No boron slag was found after the product was filtered, and its thermo-oxidative stability is shown in Table 1.

example 3

[0036] In a three-neck flask equipped with a heating and stirring device, add 195g of bispolyisobutenyl succinimide T152, 32g of di-n-butyl phosphite T304, 4.9g of boric acid, 28g of ethoxylated tallow diamine (Ethoduomeen T- 13), 1.9g of isobutanol, 2.2g of water, nitrogen, stirred at 90±5°C for 4h, gradually warmed up to 110°C, pulled out water and butanol under 60mmHg pressure, the obtained transparent liquid is the present invention Phosphorus boride ashless dispersant, no boron slag was found after the product was filtered, and its thermo-oxidative stability is shown in Table 1.

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Abstract

The invention relates to a preparation method of phosphorus boronizing ashless dispersant, which comprises the following steps: ashless dispersant, phosphorus-containing additive, boracic acid, ethoxylation aliphatic amine, water and fatty alcohol are mixed and react at 70 to 100 degree centigrade, and then a product is separated and collected. The phosphorus-containing additive is phosphoric acid, phosphorous acid, phosphoric acid ester or phosphite ester. The preparation method of the phosphorus boronizing ashless dispersant provided by the invention improves the boronizing quality, and no boron slag is produced in the preparation process.

Description

technical field [0001] This invention relates to a lubricating oil additive, and more particularly to the preparation of a phosphorus boronated ashless dispersant. technical background [0002] Automatic transmission fluid is a versatile, multi-purpose fluid primarily used in automatic transmission systems in cars and light trucks. Since the automatic transmission is equipped with a hydraulic torque converter, a gear mechanism, a hydraulic mechanism, a wet clutch, etc., and only one kind of oil is used to lubricate and transmit energy, the requirements for the automatic transmission fluid are very high. General automatic transmission fluid needs to add various additives such as viscosity index improver, pour point depressant, detergent, dispersant, antioxidant, antiwear agent, rust inhibitor, metal deactivator, friction modifier, swelling agent for sealing materials, etc. . [0003] Friction characteristics are the most important and most difficult performance of automatic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M159/12C10M137/00C10M125/26C10N30/04
Inventor 李勇
Owner CHINA PETROLEUM & CHEM CORP
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