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

An extreme pressure antiwear agent, phosphoramidite technology, applied in additives, petroleum industry, lubricating compositions, etc., can solve the problem of low strength of tricresyl phosphate oil film, high activity of di-n-butyl phosphite, odor, etc. problem, 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 anti-wear additives widely used in 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

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Effect test

example 1

[0036] Take 0.3mol phosphorus oxychloride and 200ml toluene, stir and add 0.3mol n-octanol at a temperature of 0±5°C, stir and add 0.3mol lauryl alcohol and 0.6mol triethylamine after 3 hours, stir and add 0.33mol hydration after another 3 hours Hydrazine, heat up to 110±5°C for 1 hour to react for 1 hour, wash, dry, and purify. The obtained colorless transparent viscous liquid is the anti-wear additive n-octyl n-dodecylphosphorylhydrazide, code-named A1. Add A1 to N46 base oil at 0.50w%, and evaluate it with a four-ball tester. The results are shown in Table 1;

example 2

[0038] Take 0.3mol of phosphorus oxychloride and 200ml of tetrahydrofuran, stir and add 0.3mol of isooctyl alcohol at a temperature of 0±5°C, stir and add 0.3mol of isooctyl alcohol and 0.6mol of triethylamine after 3 hours, stir and add 0.33mol of triethylamine after another 3 hours Hydrazine hydrate, after 2 hours, heat up to 110±5°C to react for 1 hour, wash, dry, and purify. The obtained light yellow transparent liquid is the anti-wear additive diisooctylphosphorylhydrazide, code-named A2. A2 was added into N46 base oil at 0.50w%, and evaluated by four-ball tester, and the results are shown in Table 1;

example 3

[0040] Take 0.3mol of phosphorus oxychloride and 150ml of ether, stir and add 0.3mol of n-butanol at a temperature of 0±5°C, stir and add 0.3mol of n-butanol and 0.4mol of triethylamine after 3 hours, and then separate after another 3 hours , Evaporate the solvent to obtain the intermediate phosphorus oxychloride. Put phosphorus oxychloride and 150ml toluene into a three-necked flask, add 0.3mol tertiary carbon primary amine (Primene 81-R) with a carbon number of 12, stir and add 0.3mol triethylamine, and heat up to 110±5°C after 2 hours React for 1 hour, wash, dry, and purify. The obtained yellow transparent liquid is the anti-wear additive di-n-butylphosphoryl lauryl ester, code-named A3. A3 was added into N46 base oil at 0.50w%, and evaluated by four-ball testing machine, and the results are shown in Table 1;

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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 (-NH2) 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 anti-wear additives widely used in 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] CN1465581A has reported organophosphoramide hydrochloride containing the following general formula, which is used as pesticide and insecticide. [0004] [0005] CN1176298A has reported a kind of thioph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M137/16C10N30/06
Inventor 李云鹏甘伟斌
Owner CHINA PETROLEUM & CHEM CORP
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