CN103952193B - A kind of diesel antiwear additive and preparation method thereof - Google Patents
A kind of diesel antiwear additive and preparation method thereof Download PDFInfo
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- CN103952193B CN103952193B CN201410202325.8A CN201410202325A CN103952193B CN 103952193 B CN103952193 B CN 103952193B CN 201410202325 A CN201410202325 A CN 201410202325A CN 103952193 B CN103952193 B CN 103952193B
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Abstract
The invention provides a kind of antiwear additive for diesel oil and preparation method thereof. A kind of diesel antiwear additive, the mass percentage content of its component and each component is: vegetable oil acid triethanolamine ester 0 ~ 50%, vegetable oil acid glycerine ester 0 ~ 50%, anticorrosion component 1 ~ 5%, antirust component 1 ~ 5%, all the other are solvent. First the solvent of ormal weight is added in reactor, be warmed up to 70 ~ 80 DEG C, add in proportion successively while stirring vegetable oil acid triethanolamine ester, vegetable oil acid glycerine ester, anticorrosion component and antirust component, after interpolation, continue to stir half an hour after the complete clear of product, stop heating, after temperature drops to room temperature, stop stirring, go out still barrelling. The present invention, by together composite wear-resistant, anticorrosion, antirust component, adds in diesel oil, not only can play wear-resistant effect, can also reduce the corrosion of diesel oil to the position such as oil pump, engine, ensures the even running of oil way of diesel vehicle and engine.
Description
Technical field：
The invention provides a kind of antiwear additive that is exclusively used in commercially available diesel oil, and the preparation method of this antiwear additive.
Background technology：
In the operation process of Diesel engine, diesel oil is both as the fuel of engine, simultaneously also as the lubricant of the parts such as fuel injector. Not micro amount of oxygen compound, nitride, sulfide isopolarity material and the polycyclic aromatic hydrocarbon through containing in the diesel oil of hydrogenation, to a certain extent for diesel oil provides lubricity. Because the requirement to environmental protection improves constantly, oil plant all generally adopts the means such as hydrofinishing to reduce the sulfur content of diesel oil. But in hydrogenation process, also remove the oxide in diesel oil, nitride isopolarity material and polycyclic aromatic hydrocarbon, caused the greasy property of diesel oil greatly to reduce.
In order to ensure that diesel product is in meeting environmental requirement, still there is good lubricity, industrially generally in diesel oil, add antiwear additive, its main component mainly contains the compounds such as aliphatic acid and ester thereof, fatty alcohol, fatty amine.
Patent US5882364 makees antiwear additive with carboxylic acid and the synthetic ester of polyalcohol, and addition 10 500 μ g/g can obviously improve the lubricity of low-sulfur diesel-oil; Patent US4920691 mixes and makes diesel antiwear additive with two kinds of straight-chain fatty acid esters; Chinese patent CN102965174A adopts glycerine ester and the composite diesel antiwear additive that is used as of castor oil acid prepared taking castor oil acid, glycerine and solvent naphtha as raw material; CN1552827A adopts product or the product mixtures of mannich base and phenol acids, and product or the product mixtures of natural oil and amine and/or alcohol, as diesel antiwear additive; CN1552829A adopts the product of phenol acids and allyl butyrate imidodicarbonic diamide, and one or more product in organic acid and alcohol, amine, epoxides, as diesel antiwear additive.
But, although the antiwear additive that adopts said method to prepare at present can improve Lubricity of Low-Sulfur Diesel Fuels, but antiwear additive used is not acid number higher (high other character to diesel oil of acid number of antiwear additive has certain influence) at present, it is exactly complex manufacturing, production cost is high, cannot large-scale application.
Summary of the invention：
The present invention by a kind of diesel antiwear additive of composite acquisition of various active component, plays the multipurposes such as diesel oil is wear-resistant and antirust, anticorrosion, ensures that the wear-resistant index of commercially available diesel oil and acid number meet the requirement of national standard.
Technical scheme provided by the invention is:
A kind of diesel antiwear additive, the mass percentage content of its component and each component is: vegetable oil acid triethanolamine ester 0 ~ 50%, vegetable oil acid glycerine ester 0 ~ 50%, anticorrosion component 1 ~ 5%, antirust component 1 ~ 5%, all the other are solvent.
Concrete, described solvent is one or more several any mixture in fragrant solvent naphtha, diesel oil, kerosene etc.
Concrete, by vegetable oil acid and triethanolamine in molar ratio the ratio of 1:1.01 ~ 1.25 add in reactor, pass into nitrogen heat temperature raising, in 2 ~ 3 hours, reach 130 DEG C, 30 minutes follow-up continuing of insulation reaction are warmed up to 140 ~ 160 DEG C, insulation reaction certain hour, in the time determining that no longer including moisture generates, stop heating, logical water quench is to be cooled to 50 DEG C below time, stops passing into nitrogen, and blowing is also collected acquisition vegetable oil acid triethanolamine.
Concrete, vegetable oil acid and glycerine are added to reactor, add again solvent naphtha, and add the concentrated sulfuric acid to carry out esterification, and stirring and be warming up to 160 ~ 180 DEG C, 5 ~ 6h dewaters under reflux state, after esterification finishes, the material that washing generates, removes acidic catalyst, last decompression distillation make material dewatering vegetable oil acid list glycerine ester.
Concrete, described vegetable oil acid is a kind of or any several mixture in soybean oleic acid, castor oil acid, oleic acid, arachic acid, palmitoleic acid.
Concrete, described anticorrosion component is selected from the one in 124 Triazole type derivative, thiadiazoles type derivative.
Concrete, described antirust component is selected from the one in 17 alkenyl imidazoline alkenyl succinates, benzotriazole, alkenyl succinic acid ester.
Patent of the present invention also provides a kind of preparation method of diesel antiwear additive, first the solvent of ormal weight is added in reactor, be warmed up to 70 ~ 80 DEG C, add in proportion successively while stirring vegetable oil acid triethanolamine ester, vegetable oil acid glycerine ester, anticorrosion component and antirust component, after interpolation, continue to stir half an hour after the complete clear of product, stop heating, after temperature drops to room temperature, stop stirring, go out still barrelling.
Essence of the present invention be wear-resistant component and anticorrosion, antirust component is composite together with, after adding in diesel oil, not only can play wear-resistant effect, can also reduce the corrosion of diesel product to the position such as oil pump, engine, ensure the even running of oil way of diesel vehicle and engine.
Compared with prior art, the invention has the advantages that by by wear-resistant multicomponent composition and antirust, anticorrosion component is rationally composite, maximize the cooperative effect improving between the each component of diesel antiwear additive, maximize the performance that improves antiwear additive, thereby make to add a small amount of antiwear additive of the present invention just can obtain preferably serviceability in diesel oil.
Detailed description of the invention
The preparation of vegetable oil acid triethanolamine ester
First using vegetable oil acid (the present embodiment is selected castor oil acid as raw material) and triethanolamine in molar ratio the ratio of 1:1.01 ~ 1.25 add in reactor, logical people's nitrogen heat temperature raising, in 2 ~ 3 hours, reach 130 DEG C, 30 minutes follow-up continuing of insulation reaction are warmed up to 140 ~ 160 DEG C, insulation reaction certain hour, when determining that no longer including moisture generates and stop heating while taking out of, logical water quench is to be cooled to below 50 DEG C time, stop logical people's nitrogen, blowing is also collected product.
The preparation of vegetable oil acid glycerine monoesters
First will adopt the explained hereafter of carrying out esterification under vegetable oil acid (the present embodiment is selected castor oil acid as raw material) and glycerine acid catalysis. By vegetable oil acid and glycerine in molar ratio the ratio of 1:1.01 ~ 1.05 add reactor, add again solvent naphtha, and add concentrated sulfuric acid catalyst to carry out esterification, stirring is warming up to 160 ~ 180 DEG C, 5 ~ 6h dewaters under reflux state, after esterification finishes, washing generates material and removes acidic catalyst, last decompression distillation make material dewatering and boil off solvent vegetable oil acid list glycerine ester.
First the solvent of ormal weight is added in reactor, be warmed up to 70 ~ 80 DEG C, add in proportion successively while stirring vegetable oil acid triethanolamine ester, vegetable oil acid glycerine monoesters, anticorrosion component and antirust component, after interpolation, continue to stir half an hour after the complete clear of product, stop heating, after temperature drops to room temperature, stop stirring, go out still barrelling.
Concrete each component adding proportion is in table 1
The each component of table 1 embodiment and solvent composition and ratio
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement the specific embodiment of the present invention; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request protection of the present invention.
Claims (6)
1. a diesel antiwear additive, is characterized in that, the mass percentage content of its component and each component is: vegetable oil acid triethanolamine ester 0 ~ 50%, and vegetable oil acid list glycerine ester 0 ~ 50%, anticorrosion component 1 ~ 5%, antirust component 1 ~ 5%, all the other are solvent; Described anticorrosion component is selected from the one in 124 Triazole type derivative, thiadiazoles type derivative, and described antirust component is selected from the one in 17 alkenyl imidazoline alkenyl succinates, benzotriazole, alkenyl succinic acid ester; Wherein the mass percent of vegetable oil acid triethanolamine ester and vegetable oil acid list glycerine ester is all greater than 0%.
2. a kind of diesel antiwear additive according to claim 1, is characterized in that, described solvent is one or more several any mixture in fragrant solvent naphtha, diesel oil, kerosene.
3. a kind of diesel antiwear additive according to claim 1, it is characterized in that, by vegetable oil acid and triethanolamine in molar ratio the ratio of 1:1.01 ~ 1.25 add in reactor, pass into nitrogen heat temperature raising, in 2 ~ 3 hours, reach 130 DEG C, 30 minutes follow-up continuing of insulation reaction are warmed up to 140 ~ 160 DEG C, insulation reaction certain hour, in the time determining that no longer including moisture generates, stop heating, logical water quench is to be cooled to below 50 DEG C time, stop passing into nitrogen, blowing is also collected acquisition vegetable oil acid triethanolamine.
4. a kind of diesel antiwear additive according to claim 1, it is characterized in that, vegetable oil acid and glycerine are added to reactor, then add solvent naphtha, and add the concentrated sulfuric acid to carry out esterification, stirring is warming up to 160 ~ 180 DEG C, 5 ~ the 6h that dewaters under reflux state, after esterification finishes, the material that washing generates, remove acidic catalyst, last decompression distillation make material dewatering vegetable oil acid list glycerine ester.
5. according to a kind of diesel antiwear additive described in claim 3 or 4, it is characterized in that, described vegetable oil acid is a kind of or any several mixture in soybean oleic acid, castor oil acid, oleic acid, arachic acid, palmitoleic acid.
6. according to the preparation method of a kind of diesel antiwear additive claimed in claim 1, it is characterized in that, first the solvent of ormal weight is added in reactor, be warmed up to 70 ~ 80 DEG C, add in proportion successively while stirring vegetable oil acid triethanolamine ester, vegetable oil acid list glycerine ester, anticorrosion component and antirust component, after interpolation, continue to stir half an hour after the complete clear of product, stop heating, after temperature drops to room temperature, stop stirring, go out still barrelling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410202325.8A CN103952193B (en) | 2014-05-14 | 2014-05-14 | A kind of diesel antiwear additive and preparation method thereof |
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| CN201410202325.8A CN103952193B (en) | 2014-05-14 | 2014-05-14 | A kind of diesel antiwear additive and preparation method thereof |
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| CN103952193A CN103952193A (en) | 2014-07-30 |
| CN103952193B true CN103952193B (en) | 2016-05-11 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4920691A (en) * | 1989-05-22 | 1990-05-01 | Fainman Morton Z | Fuel additive |
| CN100448960C (en) * | 2005-12-29 | 2009-01-07 | 中国石油化工股份有限公司 | Application of modified biological diesel oil as low sulfur diesel oil antiwear agent |
| CN101962587A (en) * | 2009-07-24 | 2011-02-02 | 上海友豪化工有限公司 | Low-sulfur diesel lubricity improver and preparation method thereof |
| CN102965174A (en) * | 2012-12-11 | 2013-03-13 | 江苏汉光实业股份有限公司 | Diesel anti-wear agent |
| CN103289763A (en) * | 2013-05-22 | 2013-09-11 | 吴江市德佐日用化学品有限公司 | Low sulfur diesel antiwear additive |
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