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Phosphamide ester extreme pressure anti-wear additives and preparation and application thereof

A technology of extreme pressure antiwear agent and phosphoramidite, which is applied in additives, petroleum industry, lubricating composition, etc., can solve the problem of low strength of tricresyl phosphate oil film, high activity of di-n-butyl phosphite, and bad smell and other problems, to achieve excellent anti-wear performance, good oil solubility, and reduce pollution

Active Publication Date: 2009-05-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the widely used anti-wear additives of lubricating oil (grease) mainly include di-n-butyl phosphite (T304), tricresyl phosphate (T306), sulfuric acid-formaldehyde-amine condensate (T305), sulfuric acid complex ester Amine salt (T307), etc., there are not many varieties, and each has its own shortcomings, such as di-n-butyl phosphite is too active, and the corrosion is serious during use; tricresyl phosphate oil film strength is not high; sulfuric acid-formaldehyde-amine condensate Phosphoric acid complex ester amine salt has a very bad smell, etc.

Method used

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  • Phosphamide ester extreme pressure anti-wear additives and preparation and application thereof
  • Phosphamide ester extreme pressure anti-wear additives and preparation and application thereof
  • Phosphamide ester extreme pressure anti-wear additives and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0034] Take 0.3mol phosphorus trichloride and 200ml toluene, stir and add 0.3mol n-octanol at 0±10°C, stir and add 0.3mol lauryl alcohol and 0.6mol triethylamine after 3 hours, stir and add 0.33mol hydration after 3 hours Hydrazine, after 2 hours, heat up to 110±5°C and react for 1 hour, wash, dry, and purify. The obtained colorless transparent viscous liquid is the anti-wear additive n-octyl n-dodecyl phosphorohydrazide, code name for A1. Add A1 in N46 base oil by 0.50% (m / m), and carry out four-ball tester evaluation, the results are shown in Table 1; add A1 in N46 base oil by 1.0% (m / m), and carry out four-ball tester evaluation, the results See Table 2.

example 2

[0036] Take 0.3mol phosphorus trichloride and 200ml tetrahydrofuran, stir and add 0.3mol n-octanol at a temperature of 0±5°C, stir and add 0.3mol n-octanol and 0.6mol triethylamine after 3 hours, stir and add 0.33mol after another 3 hours Hydrazine hydrate, heated up to 110±5°C for 1 hour to react for 1 hour, washed, dried, purified, and the obtained colorless and transparent liquid was the anti-wear additive di-n-octylphosphorohydrazide, code-named A2. Add A2 in N46 base oil by 0.50% (m / m), and carry out four-ball tester evaluation, the results are shown in Table 1; add A2 in N46 base oil by 1.0% (m / m), and carry out four-ball tester evaluation, the results See Table 2.

example 3

[0038] Take 0.3mol phosphorus trichloride and 150ml ether, stir and add 0.3mol n-butanol at a temperature of 0±10°C, stir and add 0.3mol n-butanol and 0.4mol triethylamine after 3 hours, and separate after another 3 hours , Evaporate the solvent to obtain the intermediate phosphorous oxychloride. Put phosphorous oxychloride and 150ml toluene into a three-necked flask, add 0.3mol tertiary carbon primary amine (Primene81-R), stir and add 0.3mol triethylamine, after 2 hours, raise the temperature to 110±5°C for 1 hour, wash , dried and purified, the obtained yellow transparent liquid is the anti-wear additive di-n-butylphosphorous acid dodecylamine ester, code-named A3. Add A3 in N46 base oil by 0.50% (m / m), and carry out four-ball testing machine evaluation, the results are shown in Table 1; by adding 1.0% (m / m) in N46 base oil, carry out four-ball testing machine evaluation, the results See Table 2.

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Abstract

The invention provides a extreme pressure antiwear agent with structure of right general formula, wherein R, R' is same or different alkyl group with C1-C20 linear chain or branched chain, asphalt base, aromatic group or aralkyl, R'' is amino or alkyl group with C1-C18 linear chain or branched chain, aromatic group, aralkyl or asphalt base. The antiwear agent is reacted by phosphorus trichloride and C1-C20 alcohol, hydrazine hydrate or C4-C18 orgnic amine. The antiwear agent of the invention can be used in lubrication oil and lubricant grease with 0.1-3.0 w% of recommeding amount.

Description

technical field [0001] The invention relates to an extreme-pressure anti-wear agent for lubricating oil and grease, a preparation method and an application method thereof. technical background [0002] At present, the widely used anti-wear additives of lubricating oil (grease) mainly include di-n-butyl phosphite (T304), tricresyl phosphate (T306), sulfuric acid-formaldehyde-amine condensate (T305), sulfuric acid complex ester Amine salt (T307), etc., there are not many varieties, and each has its own shortcomings, such as di-n-butyl phosphite is too active, and the corrosion is serious during use; tricresyl phosphate oil film strength is not high; sulfuric acid-formaldehyde-amine condensate Phosphoric acid complex ester amine salt has a very bad smell and so on. [0003] CN 1156482C synthesized a spirocyclic phosphoramidite for asymmetric catalytic hydrogenation reaction, the chemical formula is [0004] [0005] US 5919967 reports a synthesis method of phosphoramidite ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M137/04C10N30/06
Inventor 李云鹏甘伟斌
Owner CHINA PETROLEUM & CHEM CORP
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