CN101721841A - Lubrication oil composite type demulsifier and application thereof - Google Patents
Lubrication oil composite type demulsifier and application thereof Download PDFInfo
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- CN101721841A CN101721841A CN200810224022A CN200810224022A CN101721841A CN 101721841 A CN101721841 A CN 101721841A CN 200810224022 A CN200810224022 A CN 200810224022A CN 200810224022 A CN200810224022 A CN 200810224022A CN 101721841 A CN101721841 A CN 101721841A
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Abstract
The invention relates to a lubrication oil composite demulsifier which is composed of the following components in percent by weight relative to 100 percent of the total weight of the composite demulsifier: 0.5-15 percent of kilfoam, 1-25 percent of demulsifier and 60-98 percent of solvent, wherein the kilfoam is one or more components comprising silicone oil, fluorine-bearing silicone oil and acrylate copolymer, and the demulsifier is a polyethers demulsifier. The invention combines the kilfoam and the demulsifier and gives a full play to the advantages of the kilfoam and the demulsifier, thereby further improving the emulsification resistance of oils.
Description
Technical field
The present invention relates to a kind of composite demulsifying agent and application thereof that is used for lubricating oil.
Background technology
The demulsifier that uses in lubricating oil also is anti emulsifier usually.It is many-sided causing the reason of lubricated oil content water-based difference or generation emulsification.The one, the lubricating oil viscosity height; The 2nd, in industrial lubricant, be added with various additives, wherein major part is the surfactant that emulsification function is arranged; The 3rd, the in use oxidized compound that has produced easy emulsifications such as carboxylic acid of oil product degenerates the resistance to emulsion of oil.Refining depth, the suitable additive of selection of deepening base oil no doubt are a kind of problems that should at first consider, are the main paties that improves the lubricating oil resistance to emulsion but add demulsifier.
After adding people's demulsifier; demulsifier is adsorbed on oil/hydrosphere facial mask, can change oil/water termination tension force, eliminates the obstacle (promptly eliminating the diaphragm of liquid pearl outside) that the disperse phase liquid pearl mutually combines; the liquid pearl is combined easily and realize changing mutually, thereby reach branch water purpose.A kind of demulsifier efficiently must possess stronger surface-active, excellent wetting capacity energy and enough flocculation and binding abilities.
Because demulsifier has certain scope of application, the source variation of gene basis oil, production technology adjustment, operating condition fluctuate and cause that the trace of oil base stock composition changes sometimes; Or because of the use of multiple additives has changed the surface property of oil product, so that cause the variation of oil product demulsification performance, and make independent employing demulsifier, be difficult to make the demulsification performance of lubricating oil product to get a desired effect.
Summary of the invention
The invention provides a kind of composite demulsifying agent,, improve oil product emulsion resistance effect in conjunction with the advantage of anti-foaming agent and demulsifier.
The present invention also provides the application process of above-mentioned composite demulsifying agent.
Composite demulsifying agent provided by the invention is 100% by anti-foaming agent, demulsifier and solvent composition in the composite demulsifying agent gross weight, and the anti-foaming agent mass percent is 0.5-15%, preferred 1-11%; The demulsifier mass percent is 1-25%, preferred 2-22%; Solvent quality percentage is 60-98%.
Said anti-foaming agent is one or more in silicone oil, fluorine containing silicone oil and the acrylate copolymer, and wherein the structure of silicone oil main component is dimethylsiloxane polymer (as T901 or similar products); The structure of fluorine containing silicone oil main component is the dimethyl silicone polymer (as FF160 or similar products) of trifluoro propyl modification; The main component of acrylate copolymer is the copolymer (as T911, T912 or similar products) of acrylate and ether.
Demulsifier is the polyethers demulsifier, can be the reactant (as DM114 or similar products) of amine and oxozone trimethylene or the block copolymer (as DL32, T1002 or similar products) of oxirane and expoxy propane.
Said solvent is rubber industry one or more in solvent naphtha, aviation kerosine and the pentanone.
The preparation method of above-mentioned composite demulsifying agent evenly gets final product anti-foaming agent and demulsifier and solvent.Preferably preparation in accordance with the following methods: earlier anti-foaming agent is mixed by use amount with demulsifier, add solvent again, under 20 ℃ of-50 ℃ of temperature, stir, it is fully dissolved, be made into composite demulsifying agent.
Composite demulsifying agent provided by the invention is used for lubricating oil, can improve the demulsification performance of lubricating oil.During use, add an amount of composite demulsifying agent in oil product, stirring gets final product.
The preferred industrial gear oil of said lubricating oil.
The present inventor finds that by further investigation anti-foaming agent has stronger surface-active, also can play a role at oil-water interfaces, can influence the demulsification performance of oil product.Based on this discovery, the present invention gives full play to both advantages with anti-foaming agent and the compound use of demulsifier, has further improved the demulsification performance of oil product.
The specific embodiment
The invention will be further described below by example, but following example do not limit the invention, and any change that does not exceed design of the present invention and scope all within the scope of the present invention.Spirit of the present invention and protection domain are listed among the claim.
The present invention is undertaken by GB/T 7305-1989 about the assessment method of lubricating oil demulsification performance, i.e. oil and synthetic liquid resistance to emulsion pipette method.This method is applicable to that kinematic viscosity (40 ℃) is the oil product of 30～100mm2/s.Concrete operation method be materials and the graduated cylinder of each 40mL charging method of distilled water regulation in, measuring under the temperature, rotating speed with 1500r/min stirs 5min, keep afterwards leaving standstill, and pick up counting, time when the synthetic liquid of record, water and residue emulsifying liquid integration do not reach 40mL, 37mL, 3mL or 40mL, 40mL, 0mL, the used time is short more, illustrates that the demulsification performance of oil product is good more.If after leaving standstill 30min (test temperature for (54 ± 1) ℃ time) or 1h (test temperature for (82 ± 1) ℃ time), You Heshui can't separate fully, then the milliliter number of report oil or synthetic liquid, water and residue emulsion volume.It is qualified for basic separation to reach 40-37-3mL, and reaching 40-40-0mL is to separate fully.
Example 1
Use solvent naphtha according to 1: 2: 14 fluorine containing silicone oil, polyether type demulsifying agent 1, pentanone, rubber industry: 83 ratio is mixed, under 20 ℃ of-50 ℃ of temperature, with machinery or manually stir, be made into composite demulsifying agent 1, wherein the structure of fluorine containing silicone oil main component is the dimethyl silicone polymer (FF160) of trifluoro propyl modification, the structure of polyether type demulsifying agent 1 main component is the reactant (T1001) of amine and oxozone trimethylene, and the content of fluorine containing silicone oil and polyether type demulsifying agent 1 adds up to about 3% (mass fraction) in composite demulsifying agent 1.Amount according to 0.30W% joins composite demulsifying agent 1 in the industrial gear oil, and the demulsification performance test result of oil product sees Table 1.
The demulsification performance of table 1. composite demulsifying agent 1
As seen from Table 1, do not add demulsifier in the industrial gear oil, add a kind of demulsifier (polyether type demulsifying agent 1) and add in 1 three kinds of situations of composite demulsifying agent, the industrial gear oil's emulsion resistance effect that adds composite demulsifying agent 1 is best, and its emulsion separation is the shortest to the used time of 40-37-3mL.The demulsification performance that composite demulsifying agent 1 is described is better than single demulsifier polyether type demulsifying agent 1.
Example 2
With silicone oil, acrylate copolymer, polyether type demulsifying agent 1, solvent naphtha was according to 1: 2: 6: 91 ratio is mixed, under 20 ℃ of-50 ℃ of temperature, with machinery or manually stir, be made into composite demulsifying agent 2, wherein the structure of silicone oil main component is dimethylsiloxane polymer (T901), the copolymer (T912) of the structure acrylate of acrylate copolymer main component and ether, the structure of polyether type demulsifying agent 1 main component is the reactant (T1001) of amine and oxozone trimethylene, silicone oil in composite demulsifying agent 2, the content of acrylate copolymer and polyether type demulsifying agent 1 adds up to about 9% (mass fraction).Amount according to 0.10W% joins composite demulsifying agent 2 in the industrial gear oil, and the demulsification performance test result of oil product sees Table 2.
The demulsification performance of table 2. composite demulsifying agent 2
As seen from Table 2, do not add demulsifier in the industrial gear oil, add a kind of demulsifier (polyether type demulsifying agent 1) and add in 2 three kinds of situations of composite demulsifying agent, the industrial gear oil's emulsion resistance effect that adds composite demulsifying agent 2 is best, and its emulsion separation is the shortest to the used time of 40-37-3mL.The demulsification performance that composite demulsifying agent 2 is described is better than single demulsifier polyether type demulsifying agent 1.
Example 3
Silicone oil, polyether type demulsifying agent 1, aviation kerosine are mixed according to the ratio of 11: 22: 67 (representing according to percentage composition), under 20 ℃ of-50 ℃ of temperature, with machinery or manually stir, be made into composite demulsifying agent 3, wherein the structure of silicone oil main component is dimethylsiloxane polymer (T901), the structure of polyether type demulsifying agent 1 main component is the reactant (T1001) of amine and oxozone trimethylene, and the content of silicone oil and polyether type demulsifying agent 1 adds up to about 33% (mass fraction) in composite demulsifying agent 3.Amount according to 0.03W% joins composite demulsifying agent 3 in the industrial gear oil, and the demulsification performance test result of oil product sees Table 3.
The demulsification performance of table 3. composite demulsifying agent 3
As seen from Table 3, do not add demulsifier in the industrial gear oil, add a kind of demulsifier (polyether type demulsifying agent 1) and add in 3 three kinds of situations of composite demulsifying agent, the industrial gear oil's emulsion resistance effect that adds composite demulsifying agent 3 is best, and its emulsion separation is the shortest to the used time of 40-37-3mL.The demulsification performance that composite demulsifying agent 3 is described is better than single demulsifier polyether type demulsifying agent 1.
Example 4
Use solvent naphtha according to 1: 2: 14 fluorine containing silicone oil, polyether type demulsifying agent 2, pentanone, rubber industry: 83 ratio is mixed, under 20 ℃ of-50 ℃ of temperature, with machinery or manually stir, be made into composite demulsifying agent 4, wherein the structure of fluorine containing silicone oil main component is the dimethyl silicone polymer (FF160) of trifluoro propyl modification, the structure of polyether type demulsifying agent 2 main components is block copolymers (T1002) of oxirane and expoxy propane, and the content of fluorine containing silicone oil and polyether type demulsifying agent 2 adds up to about 3% (mass fraction) in composite demulsifying agent 4.Amount according to 0.30W% joins composite demulsifying agent 4 in the industrial gear oil, and the demulsification performance test result of oil product sees Table 4.
The demulsification performance of table 4. composite demulsifying agent 4
As seen from Table 4, do not add demulsifier in the industrial gear oil, add a kind of demulsifier (polyether type demulsifying agent 2) and add in 4 three kinds of situations of composite demulsifying agent, the industrial gear oil's emulsion resistance effect that adds composite demulsifying agent 4 is best, and its emulsion separation is the shortest to the used time of 40-37-3mL.The demulsification performance that composite demulsifying agent 4 is described is better than single demulsifier polyether type demulsifying agent 2.
Example 5
With fluorine containing silicone oil, polyether type demulsifying agent 3, pentanone, solvent naphtha according to 1: 2: 14: 83 ratio is mixed, under 20 ℃ of-50 ℃ of temperature, with machinery or manually stir, be made into composite demulsifying agent 5, wherein the structure of fluorine containing silicone oil main component is the dimethyl silicone polymer (FF160) of trifluoro propyl modification, and the structure of polyether type demulsifying agent 3 main components is block copolymers (DL32) of oxirane and expoxy propane.The content of fluorine containing silicone oil and polyether type demulsifying agent 3 adds up to about 3% (mass fraction) in composite demulsifying agent 5.Amount according to 0.30W% joins composite demulsifying agent 5 in the industrial gear oil, and the demulsification performance test result of oil product sees Table 5.
The demulsification performance of table 5. composite demulsifying agent 5
As seen from Table 5, do not add demulsifier in the industrial gear oil, add a kind of demulsifier (polyether type demulsifying agent 3) and add in 5 three kinds of situations of composite demulsifying agent, the industrial gear oil's emulsion resistance effect that adds composite demulsifying agent 5 is best, and its emulsion separation is the shortest to the used time of 40-37-3mL.The demulsification performance that composite demulsifying agent 5 is described is better than single demulsifier polyether type demulsifying agent 3.
Claims (9)
1. composite demulsifying agent, by anti-foaming agent, demulsifier and solvent composition, in the composite demulsifying agent gross weight is 100%, the anti-foaming agent mass percent is 0.5-15%, the demulsifier mass percent is 1-25%, solvent quality percentage is 60-98%, and wherein said anti-foaming agent is one or more in silicone oil, fluorine containing silicone oil and the acrylate copolymer, and demulsifier is the polyethers demulsifier.
2. according to the described composite demulsifying agent of claim 1, it is characterized in that the anti-foaming agent mass percent is 1-11%, the demulsifier mass percent is 2-22%.
3. according to the described composite demulsifying agent of claim 1, it is characterized in that wherein the structure of silicone oil main component is a dimethylsiloxane polymer.
4. according to the described composite demulsifying agent of claim 1, it is characterized in that the structure of fluorine containing silicone oil main component is the dimethyl silicone polymer of trifluoro propyl modification.
5. according to the described composite demulsifying agent of claim 1, it is characterized in that the main component of acrylate copolymer is the copolymer of acrylate and ether.
6. according to the described composite demulsifying agent of claim 1, it is characterized in that the polyethers demulsifier is the reactant of amine and oxozone trimethylene, or the block copolymer of oxirane and expoxy propane.
7. according to the described composite demulsifying agent of claim 1, it is characterized in that said solvent is rubber industry one or more in solvent naphtha, aviation kerosine and the pentanone.
8. the application process of the described composite demulsifying agent of one of claim 1-7 in lubricating oil.
9. according to the described application process of claim 8, it is characterized in that said lubricating oil is industrial gear oil.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102352264A (en) * | 2011-08-12 | 2012-02-15 | 中国石油天然气股份有限公司 | Treating agent for dehydrating aging oil in oil field |
| CN102417850A (en) * | 2011-10-17 | 2012-04-18 | 中国石油化工股份有限公司 | Biodegradable flame-resistant hydraulic fluid composition and preparation method thereof |
| CN102604720A (en) * | 2012-02-29 | 2012-07-25 | 上海孚科狮化工科技有限公司 | Lubricating oil emulsion splitter composition and application thereof |
| CN104232246A (en) * | 2013-06-07 | 2014-12-24 | 中国石油化工股份有限公司 | Lubricating oil composite type antifoaming agent and application thereof |
| CN112646647A (en) * | 2019-10-10 | 2021-04-13 | 中国石油化工股份有限公司 | Anti-foaming composition, preparation method and application thereof |
| CN116240057A (en) * | 2022-12-13 | 2023-06-09 | 成都钠镁化学有限公司 | Natural gas compressor lubricating oil emulsion demulsifier and preparation method thereof |
| CN116445202A (en) * | 2023-03-16 | 2023-07-18 | 邯郸市亨利石化有限公司 | Novel demulsifier |
| CN116445202B (en) * | 2023-03-16 | 2024-08-13 | 邯郸市亨利石化有限公司 | Novel demulsifier |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1013502B (en) * | 1988-12-17 | 1991-08-14 | 中国石油化工总公司石油化工科学研究院 | Anti-emulsifying compound additive for lubricant |
| CN1346874A (en) * | 2001-10-31 | 2002-05-01 | 上海海联润滑材料研究所 | Heavy-duty antiemulsifying oil film bearing oil |
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- 2008-10-10 CN CN200810224022A patent/CN101721841B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102352264A (en) * | 2011-08-12 | 2012-02-15 | 中国石油天然气股份有限公司 | Treating agent for dehydrating aging oil in oil field |
| CN102352264B (en) * | 2011-08-12 | 2013-10-16 | 中国石油天然气股份有限公司 | Treating agent for dehydrating aging oil in oil field |
| CN102417850A (en) * | 2011-10-17 | 2012-04-18 | 中国石油化工股份有限公司 | Biodegradable flame-resistant hydraulic fluid composition and preparation method thereof |
| CN102604720A (en) * | 2012-02-29 | 2012-07-25 | 上海孚科狮化工科技有限公司 | Lubricating oil emulsion splitter composition and application thereof |
| CN102604720B (en) * | 2012-02-29 | 2014-03-12 | 上海孚科狮化工科技有限公司 | Lubricating oil emulsion splitter composition and application thereof |
| CN104232246A (en) * | 2013-06-07 | 2014-12-24 | 中国石油化工股份有限公司 | Lubricating oil composite type antifoaming agent and application thereof |
| CN104232246B (en) * | 2013-06-07 | 2017-02-01 | 中国石油化工股份有限公司 | Lubricating oil composite type antifoaming agent and application thereof |
| CN112646647A (en) * | 2019-10-10 | 2021-04-13 | 中国石油化工股份有限公司 | Anti-foaming composition, preparation method and application thereof |
| CN116240057A (en) * | 2022-12-13 | 2023-06-09 | 成都钠镁化学有限公司 | Natural gas compressor lubricating oil emulsion demulsifier and preparation method thereof |
| CN116445202A (en) * | 2023-03-16 | 2023-07-18 | 邯郸市亨利石化有限公司 | Novel demulsifier |
| CN116445202B (en) * | 2023-03-16 | 2024-08-13 | 邯郸市亨利石化有限公司 | Novel demulsifier |
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| CN101721841B (en) | 2012-08-29 |
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