CN101597536A - Lube oil emulsion resistant agent and preparation method thereof - Google Patents
Lube oil emulsion resistant agent and preparation method thereof Download PDFInfo
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- CN101597536A CN101597536A CNA2009100748242A CN200910074824A CN101597536A CN 101597536 A CN101597536 A CN 101597536A CN A2009100748242 A CNA2009100748242 A CN A2009100748242A CN 200910074824 A CN200910074824 A CN 200910074824A CN 101597536 A CN101597536 A CN 101597536A
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Abstract
The invention discloses a kind of lube oil emulsion resistant agent, be molecular weight in the 3000-5000 scope, the poly-R-GLYCIDOL-propylene epoxide hyperbranched copolyether of HLB value in the 7-10 scope.Its preparation method: with the polyvalent alcohol is initiator, and potassium alcoholate or alkalimetal hydride are catalyzer, adds R-GLYCIDOL, propylene oxide polymerization reaction take place successively, promptly gets the finished product with filtering in Glacial acetic acid or the hydrochloric acid.This non-emulsifying agent made an addition in the lubricating oil can obviously improve the demulsification performance of lubricating oil under the heavy loading situation, guarantee lubricity, prolong service life of equipment.
Description
Technical field
The present invention relates to lubricating oil additive, specifically belong to lube oil emulsion resistant agent and preparation method thereof.
Background technology
Lube oil emulsion resistant agent is mainly used in modulation gear oil, steam turbine wet goods all types of industries with oil, is used to improve the resistance to emulsion of oil product under Duo Shui, heavy loading situation.
The interior abroad bibliographical information of lube oil emulsion resistant agent and technology of preparing is less.Domestic non-emulsifying agent mainly adopts polyethylene oxide nitrogen containing derivative or modified version polyether high molecular compound at present, as DL-32 and T1001 (patent CN104337A) etc.; U.S. The Lubrizol Corporation adopts propylene oxide-ethylene oxide block copolymerization technique route to synthesize non-emulsifying agent, but do not see play-by-play.Comprehensive existing domestic and international patent and bibliographical information, the lube oil emulsion resistant agent product is still based on epoxy ethane-epoxy propane block co-polyether and nitrogenous polyether-modified macromolecular compound at present, and the polyethers non-emulsifying agent of dissaving structure does not appear in the newspapers as yet.
Summary of the invention
The object of the invention provides high hyperbranched block copolyether emulsion resistant agent of a kind of cost performance and preparation method thereof, in order to improve the demulsification performance of lubricating oil, overcome present conventional non-emulsifying agent consumption big, add the shortcoming of component compatibility differences with other lubricating oil.
A kind of lube oil emulsion resistant agent provided by the invention is to be raw material with R-GLYCIDOL, propylene oxide, is initiator with the polyvalent alcohol, the molecular weight that makes in the 3000-5000 scope, the hyperbranched copolyether of HLB value in the 7-10 scope.
The preparation method of a kind of lube oil emulsion resistant agent provided by the invention in turn includes the following steps:
(1) according to polyvalent alcohol: the mass ratio of diethylene glycol dimethyl ether 1: 10～20 adds autoclave; The catalyzer that adds polyvalent alcohol quality 5%-15% again; Be warming up to 20～80 ℃, under nitrogen or the argon purge situation, kept 1～3 hour;
(2) be warmed up to 100～145 ℃, add the R-GLYCIDOL of 10～50 times of polyvalent alcohol quality gradually, keep autoclave pressure in 0.2～0.6MPa scope, reacted 1～5 hour;
(3) propylene oxide of 4～10 times of quality of adding R-GLYCIDOL keeps autoclave pressure in 0.2～0.6MPa scope, and keeps 100～150 ℃ of reactions 1～5 hour;
(4) diethylene glycol dimethyl ether is removed in underpressure distillation; With promptly getting the finished product with filtering in Glacial acetic acid or the hydrochloric acid.
Polyvalent alcohol described in the said process is TriMethylolPropane(TMP) or tetramethylolmethane.
Described catalyzer is any one in potassium hydride KH, sodium hydride and the potassium methylate.
Above-mentioned the finished product can directly join in the lubricant base of turbine oil, heavy loading gear oil and the various trades mark, also above-mentioned the finished product and toluene or dimethylbenzene can be mixed with solution and join in the lubricant base.The general add-on of above-mentioned the finished product is 0.01%～0.1% of a base oil quality.
Advantage compared with prior art of the present invention and effect: the present invention has utilized the macromolecular multiple-branching construction characteristics of hyperbranched polyether, more effectively be adsorbed in water-oil interface than conventional AB, ABA line style epoxy ethane-epoxy propane block co-polyether and nitrogenous polyether-modified macromolecular compound, thereby can change oil water interfacial tension rapidly; In addition, utilize its multiple-branching construction characteristics, between emulsion droplet, play function served as bridge, quicken the coalescent speed of disperse phase, finally realized demulsification performance efficiently.Preparation is simple for lube oil emulsion resistant agent of the present invention, product price ratio height, and less addition can be realized satisfied demulsification performance.
Embodiment
Embodiment 1: 30g TriMethylolPropane(TMP) and 1000g diethylene glycol dimethyl ether are joined autoclave; Add the 3g sodium hydride subsequently; Be warmed up to 50 ℃, feed nitrogen purging, and constant temperature 2 hours; Be warmed up to 110 ℃, add the 500g R-GLYCIDOL gradually, keep autoclave pressure in 0.2～0.6MPa scope, reacted 3 hours; The propylene oxide that adds 3000g gradually keeps autoclave pressure in 0.2～0.6MPa scope; Be warmed up to 135 ℃ of reactions 3 hours.The dilute hydrochloric acid neutralized reaction product that adds 0.1mol/L is to neutral; Underpressure distillation removes to desolvate and promptly gets the finished product.With 460# heavy loading gear oil is object, and under the addition 100ppm situation, the GB8022-87 method is surveyed deemulsification performance, the dried up 83.7ml of total points.
Embodiment 2: 50g tetramethylolmethane, 800g diethylene glycol dimethyl ether are joined autoclave; Add the 5g sodium hydride subsequently; Be warmed up to 50 ℃, the feeding nitrogen purging also kept 3 hours; Be warmed up to 130 ℃, add the 500g R-GLYCIDOL gradually, keep autoclave pressure in 0.2～0.6MPa scope, reacted 3 hours; Add 2500 propylene oxide gradually, keep autoclave pressure in 0.2～0.6MPa scope; 140 ℃ were reacted 3 hours.The dilute hydrochloric acid neutralized reaction product that adds 0.1mol/L is to neutral; Underpressure distillation removes to desolvate and promptly gets the finished product.With 460# heavy loading gear oil is object, and under the addition 100ppm situation, the GB8022-87 method is surveyed deemulsification performance, the dried up 83.2ml of total points.
Embodiment 3: 50g TriMethylolPropane(TMP), 800g diethylene glycol dimethyl ether are joined autoclave; Add the 5g potassium hydride KH subsequently; Keep 20 ℃ of temperature, fed nitrogen purging and constant temperature 3 hours; Be warmed up to 110 ℃, add the 1000g R-GLYCIDOL gradually, keep autoclave pressure in 0.2～0.6MPa scope, reacted 3 hours; The propylene oxide that adds 5000g gradually keeps autoclave pressure in 0.2～0.6MPa scope; 140 ℃ were reacted 5 hours down; Add the Glacial acetic acid neutralized reaction product to neutral; Underpressure distillation removes to desolvate and promptly gets the finished product.The finished product and 3000g dimethylbenzene are mixed with solution add in the 460# heavy loading gear oil, by the situation of hyperbranched block polyether addition 100ppm, the GB8022-87 method is surveyed deemulsification performance, the dried up 83.9ml of total points.
Claims (4)
1, a kind of lube oil emulsion resistant agent is characterized in that with R-GLYCIDOL, propylene oxide be raw material, is initiator with the polyvalent alcohol, the molecular weight that makes in the 3000-5000 scope, the hyperbranched copolyether of HLB value in the 7-10 scope.
2, the preparation method of a kind of lube oil emulsion resistant agent as claimed in claim 1 is characterized in that in turn including the following steps:
(1) according to polyvalent alcohol: the mass ratio of diethylene glycol dimethyl ether 1: 10～20 adds autoclave; The catalyzer that adds polyvalent alcohol quality 5%-15% again; Be warming up to 20～80 ℃, under nitrogen or the argon purge situation, kept 1～3 hour;
(2) be warmed up to 100～145 ℃, add the R-GLYCIDOL of 10～50 times of polyvalent alcohol quality gradually, keep autoclave pressure in 0.2～0.6MPa scope, reacted 1～5 hour;
(3) propylene oxide of 4～10 times of quality of adding R-GLYCIDOL keeps autoclave pressure in 0.2～0.6MPa scope, and keeps 100～150 ℃ of reactions 1～5 hour;
(4) diethylene glycol dimethyl ether is removed in underpressure distillation; With promptly getting the finished product with filtering in Glacial acetic acid or the hydrochloric acid.
3, the preparation method of lube oil emulsion resistant agent as claimed in claim 2 is characterized in that described polyvalent alcohol is TriMethylolPropane(TMP) or tetramethylolmethane.
4, the preparation method of lube oil emulsion resistant agent as claimed in claim 2 is characterized in that described catalyzer is any one in potassium hydride KH, sodium hydride and the potassium methylate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910074824 CN101597536B (en) | 2009-07-03 | 2009-07-03 | Lubricating oil anticreaming agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910074824 CN101597536B (en) | 2009-07-03 | 2009-07-03 | Lubricating oil anticreaming agent and preparation method thereof |
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| Publication Number | Publication Date |
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| CN101597536A true CN101597536A (en) | 2009-12-09 |
| CN101597536B CN101597536B (en) | 2013-01-02 |
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| CN 200910074824 Expired - Fee Related CN101597536B (en) | 2009-07-03 | 2009-07-03 | Lubricating oil anticreaming agent and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110917989A (en) * | 2019-10-28 | 2020-03-27 | 上海瀚岱化学有限公司 | Emulsifier for low-solid-content water-based epoxy resin coating and preparation method thereof |
| CN113621421A (en) * | 2021-08-18 | 2021-11-09 | 青岛华瑞泰格工贸有限公司 | Preparation method of oil mist lubricating oil for improving low-temperature pumping property |
| CN117735735A (en) * | 2024-02-06 | 2024-03-22 | 克拉玛依市弘智油田技术服务有限公司 | Oil removing agent and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100516116C (en) * | 2005-09-07 | 2009-07-22 | 山西大学 | Method for synthesizing multi block copolyether emulsion resistant agent |
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2009
- 2009-07-03 CN CN 200910074824 patent/CN101597536B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110917989A (en) * | 2019-10-28 | 2020-03-27 | 上海瀚岱化学有限公司 | Emulsifier for low-solid-content water-based epoxy resin coating and preparation method thereof |
| CN113621421A (en) * | 2021-08-18 | 2021-11-09 | 青岛华瑞泰格工贸有限公司 | Preparation method of oil mist lubricating oil for improving low-temperature pumping property |
| CN117735735A (en) * | 2024-02-06 | 2024-03-22 | 克拉玛依市弘智油田技术服务有限公司 | Oil removing agent and preparation method thereof |
| CN117735735B (en) * | 2024-02-06 | 2024-04-26 | 克拉玛依市弘智油田技术服务有限公司 | Oil removing agent and preparation method thereof |
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| CN101597536B (en) | 2013-01-02 |
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