CN101899355B - Lubricating oil composite with oxidation resistance and preparation method thereof - Google Patents
Lubricating oil composite with oxidation resistance and preparation method thereof Download PDFInfo
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- CN101899355B CN101899355B CN 200910143620 CN200910143620A CN101899355B CN 101899355 B CN101899355 B CN 101899355B CN 200910143620 CN200910143620 CN 200910143620 CN 200910143620 A CN200910143620 A CN 200910143620A CN 101899355 B CN101899355 B CN 101899355B
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Abstract
The invention provides a lubricating oil composite with oxidation resistance, which comprises the following components: 1) plenty of lubricating oil basic oil and 2) tetrabutyl titanate with the content of 1-15w% by taking the weight of the lubricating oil basic oil as a standard. The lubricating oil composite provided by the invention has original lubricating property and obviously improved oxidation stability, and can be used under more rigorous working conditions such as high temperature, high pressure and the like, thereby having wide application environment and market prospect.
Description
Technical field
The present invention relates to a kind of lubricating oil composition, specifically, is lubricating oil composition that has antioxidant property and preparation method thereof.
Background technology
At present, the machinery of operation generally is as lubricant with graphite lithium saponify, graphite calcium base grease and 24# cylinder stock oil under the severe condition such as high temperature and high pressure, but lubricant just lost efficacy extremely easily after its use temperature surpasses certain limit, thereby caused a large amount of losses.This mainly is because at high temperature lubricant is easy to due to the oxidation.Therefore, a lot of scholars are doing a large amount of research work aspect the oxidation stability that improves lubricant, and relatively more commonly used is exactly to add oxidation inhibitor at present.But serve bad impact according to the affiliation that adds of some research report oxidation inhibitor to the lubricant band again.Particularly to lubricating grease, it is reported that the affiliation that adds of oxidation inhibitor increases consistency of grease, also can reduce simultaneously the dropping point of lubricating grease.Some wish to find a kind of additive directly to join the antioxygen property that improves lubricant in the base oil thus, can also improve the dropping point of lubricating grease, thereby improve the use temperature of lubricant.
In the prior art, tetrabutyl titanate is mainly used in the organic synthesis aspect, it is a kind of good catalyzer, after its load, can play extraordinary catalytic effect at 100～200 ℃, and itself is free from environmental pollution, aftertreatment can be reused easily, modal is to be applied in ester compound, such as (Chen Zhiqiang, Sun Aili in the plastification materials such as dimixo-octyl phthalate synthetic, Wu Zhifu " tetrabutyl titanate Synthesis of Dioctyl Phthalate Using " " Henan science ", June.2006, vol24, NO3).
Up to now, do not find that in the prior art tetrabutyl titanate is as the report of oxidation inhibitor.
Summary of the invention
The invention provides a kind of lubricating oil composition with antioxidant property.
The present invention also provides the preparation method of above-mentioned lubricating oil composition.
The present invention also provides a kind of purposes of tetrabutyl titanate.
The present invention also provides a kind of method that improves the lubricant base oxidation stability.
Lubricating oil composition provided by the invention comprises following component:
1) a large amount of lubricant base,
2) take the lube base weight of oil as benchmark, content is the tetrabutyl titanate of 1～15w%.
Described lubricant base includes but not limited to mineral oil, vegetables oil and ester class oil.Its mineral oil in fluid can be selected from paraffinic crude base oil, intermediate base crude oil base oil and/or naphthene base crude oil, and the viscosity index scope can be-20～130, can be selected from 150BS, 500SN, 650SN, 100SN, 75SN etc. such as the paraffinic crude base oil; The intermediate base crude oil base oil can be selected from one or more among 60ZN, 150ZN, 300ZN, 500ZN, the 900ZN etc.; Naphthene base crude oil can be selected from one or more among 60DN, 150DN, 300DN, 500DN, the 900DN etc.Vegetables oil wherein can be treated oil, also can be unpurified crude oil, even can be waste grease, the acid number scope between 0.05～10mgKOH/g, for example Viscotrol C, peanut oil, soybean oil, vegetable seed wet goods.Ester class oil wherein can be selected from one or more in the base oils such as dioctyl sebacate, trihydroxymethylpropanyl ester, Octyl adipate, dioctyl phthalate (DOP), dibutyl phthalate.
The content of tetrabutyl titanate is 1～15w%, preferred 2～10w%, more preferably 3～7w%.
The preparation method of lubricating oil composition provided by the invention comprises: under 10～120 ℃ of temperature, and preferred 20～100 ℃, more preferably under 30～80 ℃ of temperature, with tetrabutyl titanate and lubricant base mix and blend 15 minutes～6 hours, preferred 1 hour～4 hours.
The invention provides a kind of purposes of tetrabutyl titanate, comprising: in containing the composition of lubricant base, add tetrabutyl titanate to improve the oxidation stability of lubricant base, take the lube base weight of oil as benchmark, add-on is 1～15w%.
Described lubricant base includes but not limited to mineral oil, vegetables oil and ester class oil.
The add-on of tetrabutyl titanate is 1～15w%, preferred 2～10w%, more preferably 3～7w%.
The invention provides a kind of method that improves lubricating oil oxidation stability, comprising: in containing the composition of lubricant base, add tetrabutyl titanate, take the lube base weight of oil as benchmark, add-on is 1～15w%.
Described lubricant base includes but not limited to mineral oil, vegetables oil and ester class oil.
The add-on of tetrabutyl titanate is 1～15w%, preferred 2～10w%, more preferably 3～7w%.
Can also contain other additives such as anti-wear agent, rust-preventive agent, oxidation inhibitor in the described lubricating oil composition.
Lubricating oil composition provided by the invention had both had original lubricity, also had the oxidation stability of obvious raising, can be used for therefore having wide applied environment and market outlook under the comparatively harsh working condition such as High Temperature High Pressure.
Embodiment
In the following embodiments, measure initial oxidation temperature according to dsc (DSC).
Embodiment 1
150BS and 3w% tetrabutyl titanate are mixed to join in the flask, at 40 ℃ of lower mineral oil that stirred after namely obtaining modification in 120 minutes.Measure the DSC initial oxidation temperature, data see Table 1.
Embodiment 2
500SN and 3w% tetrabutyl titanate are mixed to join in the flask, at 40 ℃ of lower mineral oil that stirred after namely obtaining modification in 60 minutes.Measure the DSC initial oxidation temperature, data see Table 1.
Embodiment 3
150ZN and 3w% tetrabutyl titanate are mixed to join in the flask, at 60 ℃ of lower mineral oil that stirred after namely obtaining modification in 120 minutes.Measure the DSC initial oxidation temperature, data see Table 1.
Embodiment 4
150DN and 5w% tetrabutyl titanate are mixed to join in the flask, at 40 ℃ of lower mineral oil that stirred after namely obtaining modification in 120 minutes.Measure the DSC initial oxidation temperature, data see Table 1.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Base oil | 150BS | 500SN | 150ZN | 150DN |
| DSC before the modification, ℃ | 200 | 206 | 190 | 181 |
| DSC after the modification, ℃ | 292 | 278 | 255 | 243 |
Embodiment 5
Uniflex DBS and 3w% tetrabutyl titanate are mixed to join in the flask, at 40 ℃ of lower mineral oil that stirred after namely obtaining modification in 120 minutes.Measure the DSC initial oxidation temperature, data see Table 1.
Embodiment 6
Trihydroxymethylpropanyl ester and 3w% tetrabutyl titanate are mixed to join in the flask, at 40 ℃ of lower mineral oil that stirred after namely obtaining modification in 60 minutes.Measure the DSC initial oxidation temperature, data see Table 1.
Embodiment 7
Uniflex DBS and 6w% tetrabutyl titanate are mixed to join in the flask, at 40 ℃ of lower mineral oil that stirred after namely obtaining modification in 120 minutes.Measure the DSC initial oxidation temperature, data see Table 1.
Table 2
| Embodiment 5 | Embodiment 6 | Embodiment 7 | |
| Base oil | Dioctyl sebacate | Trihydroxymethylpropanyl ester | Uniflex DBS |
| DSC before the modification, ℃ | 178 | 210 | 178 |
| DSC after the modification, ℃ | 206 | 246 | 213 |
Embodiment 8
Viscotrol C and 3w% tetrabutyl titanate are mixed to join in the flask, at 40 ℃ of lower mineral oil that stirred after namely obtaining modification in 120 minutes.Measure the DSC initial oxidation temperature, data see Table 3.
Embodiment 9
Soybean oil and 3w% tetrabutyl titanate are mixed to join in the flask, at 40 ℃ of lower mineral oil that stirred after namely obtaining modification in 120 minutes.Measure the DSC initial oxidation temperature, data see Table 3.
Embodiment 10
Peanut oil and 3w% tetrabutyl titanate are mixed to join in the flask, at 60 ℃ of lower mineral oil that stirred after namely obtaining modification in 60 minutes.Measure the DSC initial oxidation temperature, data see Table 3.
Embodiment 11
Crude oil and 6w% tetrabutyl titanate are mixed to join in the flask, at 40 ℃ of lower mineral oil that stirred after namely obtaining modification in 120 minutes.Measure the DSC initial oxidation temperature, data see Table 3.
Table 3
| Embodiment 8 | Embodiment 9 | Embodiment 10 | Embodiment 11 | |
| Base oil | Viscotrol C | Soybean oil | Peanut oil | Crude oil |
| DSC before the modification, ℃ | 191 | 196 | 185 | 175 |
| DSC after the modification, ℃ | 267 | 258 | 262 | 250 |
Claims (8)
1. tetrabutyl titanate improves the purposes of lubricating oil oxidation stability, comprising: in containing the composition of lubricant base, add tetrabutyl titanate, take the lube base weight of oil as benchmark, add-on is 1～15w%.
2. according to purposes claimed in claim 1, it is characterized in that lubricant base wherein includes but not limited to mineral oil, vegetables oil and ester class oil.
3. according to purposes claimed in claim 2, it is characterized in that its mineral oil in fluid is selected from paraffinic crude base oil, intermediate base crude oil base oil and/or naphthene base crude oil.
4. according to purposes claimed in claim 3, it is characterized in that mineral oil viscosity index scope is-20～130.
5. according to purposes claimed in claim 2, it is characterized in that vegetables oil wherein is treated oil, unpurified crude oil or waste grease, the acid number scope is between 0.05～10mgKOH/g.
6. according to purposes claimed in claim 2, it is characterized in that one or more in dioctyl sebacate, trihydroxymethylpropanyl ester, Octyl adipate, dioctyl phthalate (DOP), dibutyl phthalate base oil of ester class grease separation wherein.
7. according to purposes claimed in claim 1, it is characterized in that the add-on of tetrabutyl titanate is 2～10w%.
8. according to purposes claimed in claim 1, it is characterized in that the add-on of tetrabutyl titanate is 3～7w%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910143620 CN101899355B (en) | 2009-05-27 | 2009-05-27 | Lubricating oil composite with oxidation resistance and preparation method thereof |
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| CN 200910143620 CN101899355B (en) | 2009-05-27 | 2009-05-27 | Lubricating oil composite with oxidation resistance and preparation method thereof |
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| CN101899355B true CN101899355B (en) | 2013-01-30 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104830436B (en) * | 2015-05-08 | 2017-11-17 | 江苏大学 | A kind of preparation method of high dropping point composite titan-based grease |
| CN109943382A (en) * | 2019-04-26 | 2019-06-28 | 中国石油化工股份有限公司 | A kind of fine purification treatment process of lube base oil |
| CN115404114B (en) * | 2022-10-13 | 2023-07-07 | 东莞市洛加斯润滑油有限公司 | Trace lubricating oil and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4137183A (en) * | 1977-11-21 | 1979-01-30 | Standard Oil Company (Indiana) | Hydrocarbyl titanate dithiophosphate compositions and processes |
| US5614480A (en) * | 1991-04-19 | 1997-03-25 | The Lubrizol Corporation | Lubricating compositions and concentrates |
| CN1225667A (en) * | 1996-07-01 | 1999-08-11 | M·S·宾格莱 | Additive composition |
| EP1702973A1 (en) * | 2005-03-14 | 2006-09-20 | Afton Chemical Corporation | Additives and lubricant formulations for improved antioxidant properties |
-
2009
- 2009-05-27 CN CN 200910143620 patent/CN101899355B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4137183A (en) * | 1977-11-21 | 1979-01-30 | Standard Oil Company (Indiana) | Hydrocarbyl titanate dithiophosphate compositions and processes |
| US5614480A (en) * | 1991-04-19 | 1997-03-25 | The Lubrizol Corporation | Lubricating compositions and concentrates |
| CN1225667A (en) * | 1996-07-01 | 1999-08-11 | M·S·宾格莱 | Additive composition |
| EP1702973A1 (en) * | 2005-03-14 | 2006-09-20 | Afton Chemical Corporation | Additives and lubricant formulations for improved antioxidant properties |
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