CN102766501A - Antiwear additive for lubricating oil - Google Patents
Antiwear additive for lubricating oil Download PDFInfo
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- CN102766501A CN102766501A CN2011101170684A CN201110117068A CN102766501A CN 102766501 A CN102766501 A CN 102766501A CN 2011101170684 A CN2011101170684 A CN 2011101170684A CN 201110117068 A CN201110117068 A CN 201110117068A CN 102766501 A CN102766501 A CN 102766501A
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- lubricating oil
- salt
- alkylthio
- acid ester
- compound
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Abstract
The invention relates to an antiwear additive for lubricating oil. The addition amount of the additive in lubricating oil is 3 wt% to 1wt one tenth of one percent. The general chemical formula of the additive is as shown in the specification, wherein R1, R2 and R3 are H or an alkyl group with 1-18 carbon atoms or a functional group substituted hetero atom containing alkyl group with 1-40 carbon atoms; and R1, R2 and R3 can be the same or can be different.
Description
(1) technical field
The present invention relates to a kind of additive for wear resistance of lubricating oil.
(2) background technology
The abrasion resistance of lubricating oil is the key point of lubricating oil research always.Zinc dialkyl dithiophosphate (ZDDP) is widely used in the various lubricating oil as wear-resistant, antioxygen, anti-corrosion multifunctional additive.But in recent years, ashless lubricating oil was owing to had good thermal oxidation stability, hydrolysis stability, resistance to emulsion, anti-bubble property, filterableness, air release property, stability in storage, and with the consistency of various lubricating oil, use more and more widely.Zinc dialkyl dithiophosphate (ZDDP) is owing to contain metal, and the application in no putty oil is restricted.Seeking the alternative ZDDP of a kind of ashless wear preventive additive and be applied in the lubricating oil, solve the wear-resistant problem of ashless lubricating oil, is the focus that present lubricating oil investigator pays close attention to.
The chemical general formula of known compound is following:
In the formula, R
1, R
2, R
3The substituted alkyl that contains a heteroatomic 1-40 carbon atom of alkyl or functional group for H or 1-18 carbon atom; R
1, R
2, R
3Can be identical, also can be inequality.
Chemical general formula of this compound (1) and preparation method have many-sided reported in literature, are applied in the ashless lubricating oil but never report the alternative zinc dialkyl dithiophosphate (ZDDP) of this compound, solve the wear-resistant problem of ashless lubricating oil.
(3) summary of the invention
The object of the present invention is to provide a kind of new purposes of the compound of chemical general formula (1), substitute zinc dialkyl dithiophosphate (ZDDP) fully and be used for ashless lubricating oil, solve the wear-resistant problem of ashless lubricating oil, is a kind of ashless wear preventive additive of excellent performance.
The compound of chemical general formula (1) is 3 percent (weight) to per milles (weight) of lubricating oil total amount as the add-on of additive in lubricating oil, and preferable add-on is 2 percent (weight) to per milles (weight).
In order to guarantee that general formula (1) compound can dissolve R well in lubricating oil
1, R
2, R
3In the summation of carbon atom with 12-54 for well, wherein most preferred is a di-n-butyl thiophosphatephosphorothioate amino dodecane salt, molecular formula is:
Next is:
Di-n-butyl thiophosphatephosphorothioate stearylamine salt; Di-n-octyl thiophosphatephosphorothioate octylamine salt; Di-n-octyl thiophosphatephosphorothioate amino dodecane salt; Di-n-octyl thiophosphatephosphorothioate stearylamine salt.Molecular formula is respectively:
The compound of chemical general formula (1) can obviously improve the abrasion resistance of lubricating oil as oil dope, substitutes zinc dialkyl dithiophosphate (ZDDP) fully and is used for ashless gear oil, hydraulicefficiency oil and ATF automatic transmission fluid.
(4) embodiment
Below in conjunction with embodiment, the present invention is specified.
Embodiment 1:
It is in the 80W-90GL-5 automotive gear oil full formula of 3.8% (quality) that 0.45% (quality) di-n-butyl thiophosphatephosphorothioate amino dodecane salt (compound (2)) adds total dose; Passed through L-37, L-42, L-33, four bench testings of L-60-1, and the abrasion resistance of oil product improves 15% than the GL-5 oil that contains ZDDP.
Embodiment 2:
The di-n-butyl thiophosphatephosphorothioate stearylamine salt (compound (3)) that in 320 heavy duty industrial gear oil full formulas, contains 0.50% (quality); This prescription has passed through FAG FE-8 bearing wear test with 320 heavy duty industrial gear oils that 2.0% (quality) adds dose-modulated, and same prescription uses 320 heavy duty industrial gear oils of ZDDP not through FAG FE-8 bearing wear test.
Embodiment 3:
The di-n-octyl thiophosphatephosphorothioate amino dodecane salt (compound (5)) that contains 0.20% (quality) at ashless hydraulicefficiency oil full formula; This prescription has passed through V104 vanepump wearing and tearing bench testing with No. 32 HM antiwear hydraulic oils that 0.80% (quality) adds dose-modulated, explains that compound (5) has good abrasion resistance.
Embodiment 4:
The di-n-octyl thiophosphatephosphorothioate stearylamine salt (compound (6)) that contains 0.40% (quality) at ATF automatic transmission fluid full formula; This prescription has passed through SAE NO.2 chip and bench testing of belt rubbing characteristics and V104 vanepump wearing and tearing bench testing with the ATF automatic transmission fluid that 7.0% (quality) adds dose-modulated, explains that compound (6) has good antiwear and antifriction and friction improves performance.
Claims (4)
1. the application of chemical general formula (1) compound in lubricating oil, general formula (1) is:
R in the formula
1, R
2, R
3Be H, or the alkyl of 1-18 carbon atom, or the substituted alkyl that contains a heteroatomic 1-40 carbon atom of functional group, R
1, R
2, R
3Can be identical, also can be inequality, it is characterized in that: the add-on of compound in lubricating oil is the 3wt% to 1wt ‰ of lubricating oil, in lubricating oil as wear preventive additive.
2. the application of compound according to claim 1 in lubricating oil is characterized in that: the add-on of additive in lubricating oil is the 2wt% to 1wt ‰ of lubricants capacity.
3. the application of compound according to claim 1 in lubricating oil is characterized in that: R in each molecule of compound
1, R
2, R
3The overall number of carbon atom is 12-54.
4. the application of compound according to claim 1 in lubricating oil is characterized in that compound is di-n-butyl thiophosphatephosphorothioate amino dodecane salt, di-n-butyl thiophosphatephosphorothioate stearylamine salt, di-n-octyl thiophosphatephosphorothioate octylamine salt, di-n-octyl thiophosphatephosphorothioate amino dodecane salt, di-n-octyl thiophosphatephosphorothioate stearylamine salt, two (12) alkylthio SULPHOSUCCINIC ACID ESTER n-Butyl Amine 99 salt, two (12) alkylthio SULPHOSUCCINIC ACID ESTER NSC 9824 salt, two (12) alkylthio SULPHOSUCCINIC ACID ESTER amino dodecane salt, two (12) alkylthio SULPHOSUCCINIC ACID ESTER stearylamine salt, two (18) alkylthio SULPHOSUCCINIC ACID ESTER n-Butyl Amine 99 salt, two (18) alkylthio SULPHOSUCCINIC ACID ESTER NSC 9824 salt, two (18) alkylthio SULPHOSUCCINIC ACID ESTER amino dodecane salt, two (18) alkylthio SULPHOSUCCINIC ACID ESTER stearylamine salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101170684A CN102766501A (en) | 2011-05-06 | 2011-05-06 | Antiwear additive for lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101170684A CN102766501A (en) | 2011-05-06 | 2011-05-06 | Antiwear additive for lubricating oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102766501A true CN102766501A (en) | 2012-11-07 |
Family
ID=47094086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101170684A Pending CN102766501A (en) | 2011-05-06 | 2011-05-06 | Antiwear additive for lubricating oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102766501A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1583986A (en) * | 2003-07-30 | 2005-02-23 | 乙基公司 | Low sulfur, low ash, and low phosphorus lubricant additive package using an alkylamine salt of a dialkylmonothiophosphate |
| CN1590520A (en) * | 2003-09-04 | 2005-03-09 | 中国石油天然气股份有限公司 | Preparation method of single sulfur substituted phosphate amine salt lubricating oil additive |
-
2011
- 2011-05-06 CN CN2011101170684A patent/CN102766501A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1583986A (en) * | 2003-07-30 | 2005-02-23 | 乙基公司 | Low sulfur, low ash, and low phosphorus lubricant additive package using an alkylamine salt of a dialkylmonothiophosphate |
| CN1590520A (en) * | 2003-09-04 | 2005-03-09 | 中国石油天然气股份有限公司 | Preparation method of single sulfur substituted phosphate amine salt lubricating oil additive |
Non-Patent Citations (1)
| Title |
|---|
| 杨红: "《有机化学》", 30 June 2002, 中国农业出版社 * |
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Application publication date: 20121107 |