CN1108361C - Antioxidative compositte of lubricating oil and its application in lubricating oil of internal combustion engine - Google Patents
Antioxidative compositte of lubricating oil and its application in lubricating oil of internal combustion engine Download PDFInfo
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- CN1108361C CN1108361C CN99103278A CN99103278A CN1108361C CN 1108361 C CN1108361 C CN 1108361C CN 99103278 A CN99103278 A CN 99103278A CN 99103278 A CN99103278 A CN 99103278A CN 1108361 C CN1108361 C CN 1108361C
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Abstract
The present invention provides an antioxygen composition for lubricating oil of internal combustion engines, which overcome the defect of poor high-temperature antioxygen performance of antioxygen additives of lubricating oil in the prior art. An alkali metal salt is dissolved in mineral oil through organic esters and organic alcohols, so that the alkali metal salt becomes an effective additive of lubricating oil of internal combustion engines. The antioxygen composition of the present invention can greatly enhance the high-temperature antioxygen performance of lubricating oil of internal combustion engines.
Description
The present invention relates to a kind of internal combustion engine lubrication oil additive and the application in lubricating oil thereof, specifically, the present invention relates to a kind of internal combustion (IC) engine lubricating oil antioxidant composition and the application in lubricating oil thereof.
As everyone knows, internal engine temperature is very high, and oil product in use inevitably oxidation will take place.For oil engine, oxidising process has produced acid, greasy filth and settling; Acid makes metal parts produce the burn into wearing and tearing; Greasy filth and settling make the lubricating oil retrogradation, cause the bonding of piston ring and the obstruction of oil circuit.In the purified base oil, add the oxidation that oxidation inhibitor can effectively delay oil product, reduce corrosion and wearing and tearing, prolong the work-ing life of oil product hardware.At present, antioxidant for lubricant oil commonly used both at home and abroad mainly contains following several: zinc dialkyl dithiophosphate, dialkyl dithiocarbamate, hindered phenol and aromatic amine compound; But above-mentioned oxidation inhibitor does not possess the antioxidant property under hot conditions.
Under the working condition of modern engine, the temperature that lubricating oil bore is very harsh, so lubricating oil must possess the ability of working under higher temperature conditions, and this just has higher requirement to modern engine oil oxidation inhibitor.That is to say that lubricating oil must possess the good high-temperature antioxidant property.
Once reported in existing technical publications that an alkali metal salt and aromatic amine compound had the excellent antioxidation ability, but because an alkali metal salt is insoluble to the internal combustion (IC) engine lubricating oil based on mineral oil, so an alkali metal salt can't become the additive of internal combustion (IC) engine lubricating oil at present.
At above-mentioned problems of the prior art, the invention provides a kind of internal combustion (IC) engine lubricating oil antioxidant additive, make an alkali metal salt that can not be applied in the prior art in the internal combustion (IC) engine lubricating oil become effective additive of internal combustion (IC) engine lubricating oil, and the high temperature antioxygen property of internal combustion (IC) engine lubricating oil is improved greatly.
Second purpose of the present invention provides the application of described antioxidant additive in internal combustion (IC) engine lubricating oil.
Internal combustion (IC) engine lubricating oil antioxygen composition of the present invention, it is characterized in that, comprise following component: component parts by weight an alkali metal salt 0.5-5.0 aromatic amine compound 5.0-25.0 organic ester 70-100 alcohol 0-30
The salt or the mixture of the organic acid that an alkali metal salt wherein of the present invention is lithium, sodium, potassium, alcohol, phenol, ketone, amine are particularly for a kind of in lithium stearate, sodium stearate, perfluorobutyric acid lithium, perfluorobutyric acid sodium, perfluorobutyric acid potassium, butanols potassium, methyl ethyl diketone sodium, diphenylpropane-1,3-dione(DPPO) sodium, trifluoroacetylacetone sodium, trifluoroacetylacetone potassium, sodium pentachlorophenol, phosphorous acid dipentaerythritol octanoate sylvite, EDTA complex ester sylvite, the compound acid amides sylvite of EDTA or their mixture.Be preferably perfluorobutyric acid sodium, trifluoroacetylacetone potassium.
Aromatic amine compound of the present invention is to, right-dialkyl diphenylamine or N-phenyl-a-naphthylamines or their mixture.
Fatty acid ester that organic esterified compound of the present invention is straight-chain fatty alcohol, tetramethylolmethane, TriMethylolPropane(TMP) or their mixture.Be preferably the C of tetramethylolmethane
5-C
9Fatty acid ester or TriMethylolPropane(TMP) C
5-C
9Fatty acid ester.
Organic alcohol compound of the present invention adopts low-molecular-weight Fatty Alcohol(C12-C14 and C12-C18), comprises propyl carbinol, isopropylcarbinol, n-Octanol; Be preferably propyl carbinol or n-Octanol.Internal combustion (IC) engine lubricating oil antioxygen composition of the present invention, it is characterized in that, preferred proportioning is a component parts by weight an alkali metal salt 0.7-2.5 aromatic amine compound 8.0-20.0 organic ester 70-100 alcohol 0-30 internal combustion (IC) engine lubricating oil antioxygen of the present invention composition, it is characterized in that preferred proportioning is that component parts by weight perfluorobutyric acid sodium 0.7-2.5 is right, right-di-iso-octyldiphenylamine 8.0-20.0 tetramethylolmethane C
5-C
9Acid mixed ester 70-100 internal combustion (IC) engine lubricating oil antioxygen of the present invention composition, it is characterized in that, preferred proportioning be component parts by weight trifluoroacetylacetone potassium 0.7-2.5 to, right-di-iso-octyldiphenylamine 4.0-10.0N-phenyl-a-naphthylamines 4.0-10.0 tetramethylolmethane C
5-C
9Acid mixed ester 70-100 internal combustion (IC) engine lubricating oil antioxygen of the present invention composition, it is characterized in that preferred proportioning is component parts by weight trifluoroacetylacetone potassium 0.7-2.5N-phenyl-a-naphthylamines 8.0-15.0 TriMethylolPropane(TMP) C
5-C
9Acid mixed ester 70-100 n-Octanol 10.0-30.0
Antioxygen component of the present invention can be widely used in the various lubricating oil products, and in use the concentration expressed in percentage by weight with 0.5-10 joins in the internal combustion (IC) engine lubricating oil; And be added with the additive that can also contain other types in the internal combustion (IC) engine lubricating oil of antioxygen component of the present invention, as the oxidation inhibitor of other compositions, detergent-dispersant additive, extreme pressure agent, anti-wear agent, viscosity index improver, sanitas, metal passivator, kilfoam, hydrolysis stabilizer etc.
After in modern engine oil, adding antioxygen composition of the present invention, by experimental data as can be seen this antioxygen composition viscosity that can suppress oil product effectively change and the acid number increase, the high temperature antioxygen property of I. C. engine oil is greatly improved, and antioxygen composition of the present invention has outstanding high-temperature oxidation resistance.
Embodiment 1
With 1.0 gram perfluorobutyric acid sodium, 10.0 grams join 100 gram tetramethylolmethane C to, right-di-iso-octyldiphenylamine
5-C
9In the acid mixed ester, heating is dissolved it fully, obtains the oxidation inhibitor component.
Then above-mentioned oxidation inhibitor component is joined in 450SN (commercially available) base oil with 5.0% concentration expressed in percentage by weight, and estimate its antioxidant property.
In above-mentioned oil product,, as oxide catalyst, be heated to 165 ℃ and kept 72 hours with iron naphthenate with 0.3 liter/hour speed bubbling air.Oxidation experiment the results are shown in Table 1;
Table 1
Embodiment 2
| Viscosity changes, and 40 ℃, % | Acid number, mg KOH/g | |
| The 450SN base oil | ＞5000 | 10.5 |
| Add embodiment 1 described component | 65 | 5.4 |
With 2.0 gram trifluoroacetylacetone potassium, 7.0 grams to, right-di-iso-octyldiphenylamine, 7.0 gram N-phenyl-a-naphthylamines, 15.0 gram propyl carbinols join 100 gram TriMethylolPropane(TMP) C
5-C
9In the acid mixed ester, heating is dissolved it fully, obtains the oxidation inhibitor component.
Then above-mentioned oxidation inhibitor component is joined in the SE 15W/50 oil (commercially available) with 5.0% concentration expressed in percentage by weight, and estimate its antioxidant property.
In above-mentioned oil product, with 0.3 liter/hour speed bubbling air, and with iron naphthenate as oxide catalyst, be heated to 165 ℃ and kept 72 hours.Oxidation experiment the results are shown in Table 2; Table 2
| Viscosity changes, and 40 ℃, % | Acid number, mg KOH/g | |
| SE15W/40 oil | ＞5000 | 7.5 |
| Add embodiment 2 described components | 60 | 3.4 |
Claims (16)
1. lubricating oil antioxygen composition, it is characterized in that said composition comprises following component and parts by weight: component parts by weight an alkali metal salt 0.5-5.0 aromatic amine compound 5.0-25.0 organic ester 70-100 alcohol 0-30.
2. lubricating oil antioxygen composition according to claim 1, it is characterized in that said composition comprises following component and parts by weight: component parts by weight an alkali metal salt 0.7-2.5 aromatic amine compound 8.0-20.0 organic ester 70-100 alcohol 0-30.
3. lubricating oil antioxygen composition according to claim 1 and 2 is characterized in that, described an alkali metal salt is organic acid, alcohol, phenol, the ketone of lithium, sodium, potassium, the salt or the mixture of amine.
4. lubricating oil antioxygen composition according to claim 1 and 2, it is characterized in that described an alkali metal salt is a kind of in lithium stearate, sodium stearate, perfluorobutyric acid lithium, perfluorobutyric acid sodium, perfluorobutyric acid potassium, butanols potassium, methyl ethyl diketone sodium, diphenylpropane-1,3-dione(DPPO) sodium, trifluoroacetylacetone sodium, trifluoroacetylacetone potassium, sodium pentachlorophenol, phosphorous acid dipentaerythritol octanoate sylvite, EDTA complex ester sylvite, the compound acid amides sylvite of EDTA or their composition.
5. lubricating oil antioxygen composition according to claim 1 and 2 is characterized in that, described an alkali metal salt is a kind of in perfluorobutyric acid sodium, the trifluoroacetylacetone potassium.
6. lubricating oil antioxygen composition according to claim 1 and 2 is characterized in that, described aromatic amine compound is to, right-dialkyl diphenylamine or N-phenyl-a-naphthylamines or their mixture.
7. lubricating oil antioxygen composition according to claim 1 and 2 is characterized in that, fatty acid ester that described organic esterified compound is straight-chain fatty alcohol, tetramethylolmethane, TriMethylolPropane(TMP) or their mixture.
8. lubricating oil antioxygen composition according to claim 1 and 2 is characterized in that described organic esterified compound is the C of tetramethylolmethane
5-C
9The C of fatty acid ester or TriMethylolPropane(TMP)
5-C
9Fatty acid ester.
9. lubricating oil antioxygen composition according to claim 1 and 2 is characterized in that described organic alcohol compound comprises propyl carbinol, isopropylcarbinol, n-Octanol.
10. lubricating oil antioxygen composition according to claim 1 and 2 is characterized in that described organic alcohol compound is propyl carbinol or n-Octanol.
11. lubricating oil antioxygen composition according to claim 1 and 2, it is characterized in that said composition comprises following component and parts by weight: component parts by weight perfluorobutyric acid sodium 0.7-2.5 to, right-di-iso-octyldiphenylamine 8.0-20.0 tetramethylolmethane C
5-C
9Acid mixed ester 70-100.
12. lubricating oil antioxygen composition according to claim 1 and 2, it is characterized in that said composition comprises following component and parts by weight: component parts by weight trifluoroacetylacetone potassium 0.7-2.5 to, right-di-iso-octyldiphenylamine 4.0-10.0N-phenyl-a-naphthylamines 4.0-10.0 tetramethylolmethane C
5-C
9Acid mixed ester 70-100.
13. lubricating oil antioxygen composition according to claim 1 and 2, it is characterized in that said composition comprises following component and parts by weight: component parts by weight trifluoroacetylacetone potassium 0.7-2.5N-phenyl-a-naphthylamines 8.0-15.0 TriMethylolPropane(TMP) C
5-C
9Acid mixed ester 70-100 n-Octanol 10.0-30.0.
14. lubricating oil antioxygen composition according to claim 1 and 2, it is characterized in that said composition comprises following component and parts by weight: 1.0 pairs in component parts by weight perfluorobutyric acid sodium, right-di-iso-octyldiphenylamine 10.0 tetramethylolmethane C
5-C
9Acid mixed ester 100.
15. lubricating oil antioxygen composition according to claim 1 and 2, it is characterized in that said composition comprises following component and parts by weight: 2.0 pairs in component parts by weight trifluoroacetylacetone potassium, right-di-iso-octyldiphenylamine 7.0N-phenyl-a-naphthylamines 7.0 TriMethylolPropane(TMP) C
5-C
9Acid mixed ester 100.0 propyl carbinols 15.0.
16. the described lubricating oil antioxygen of one of claim 1-15 composition is characterized in that as the internal combustion (IC) engine lubricating oil Application of Additives, and the concentration expressed in percentage by weight of described antioxygen component with 0.5-10 joined in the internal combustion (IC) engine lubricating oil.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99103278A CN1108361C (en) | 1999-03-30 | 1999-03-30 | Antioxidative compositte of lubricating oil and its application in lubricating oil of internal combustion engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99103278A CN1108361C (en) | 1999-03-30 | 1999-03-30 | Antioxidative compositte of lubricating oil and its application in lubricating oil of internal combustion engine |
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| Publication Number | Publication Date |
|---|---|
| CN1268553A CN1268553A (en) | 2000-10-04 |
| CN1108361C true CN1108361C (en) | 2003-05-14 |
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|---|---|---|---|
| CN99103278A Expired - Fee Related CN1108361C (en) | 1999-03-30 | 1999-03-30 | Antioxidative compositte of lubricating oil and its application in lubricating oil of internal combustion engine |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1021381C (en) * | 1985-04-01 | 1993-06-23 | 国际商用机器公司 | Raster scanning display system |
| WO1995007696A1 (en) * | 1993-09-13 | 1995-03-23 | Abbott Laboratories | Pharmaceutical composition of hiv-protease inhibitors |
| CN1174228A (en) * | 1996-08-20 | 1998-02-25 | 中国石化兰州炼油化工总厂 | Commonly-used internal combustion engine oil composition |
-
1999
- 1999-03-30 CN CN99103278A patent/CN1108361C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1021381C (en) * | 1985-04-01 | 1993-06-23 | 国际商用机器公司 | Raster scanning display system |
| WO1995007696A1 (en) * | 1993-09-13 | 1995-03-23 | Abbott Laboratories | Pharmaceutical composition of hiv-protease inhibitors |
| CN1174228A (en) * | 1996-08-20 | 1998-02-25 | 中国石化兰州炼油化工总厂 | Commonly-used internal combustion engine oil composition |
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| Publication number | Publication date |
|---|---|
| CN1268553A (en) | 2000-10-04 |
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