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

An extreme-pressure anti-wear agent, alkyl technology, applied in additives, petroleum industry, lubricating compositions, etc., can solve problems such as low strength of tricresyl phosphate oil film, high activity of di-n-butyl phosphite, and odor , to achieve excellent anti-wear performance, good oil solubility, and reduce pollution

Active Publication Date: 2007-09-19
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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IPC IPC(8): C10M137/16C10N30/06
Inventor 李云鹏甘伟斌
Owner CHINA PETROLEUM & CHEM CORP
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