CN101619248B - Method for preparing novel environmental-friendly high-efficiency diesel pour inhibitor - Google Patents
Method for preparing novel environmental-friendly high-efficiency diesel pour inhibitor Download PDFInfo
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- CN101619248B CN101619248B CN2009100511519A CN200910051151A CN101619248B CN 101619248 B CN101619248 B CN 101619248B CN 2009100511519 A CN2009100511519 A CN 2009100511519A CN 200910051151 A CN200910051151 A CN 200910051151A CN 101619248 B CN101619248 B CN 101619248B
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- maleic anhydride
- diesel pour
- pour inhibitor
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Abstract
The invention relates to a method for preparing a novel environmental-friendly high-efficiency diesel pour inhibitor, belonging to the technical field of functional fine chemistry. The novel environmental-friendly high-efficiency diesel pour inhibitor is characterized by being prepared by the following raw materials by weight percent: 50%-70% of organic solvent A, 13%-15% of crylic acid high-carbon alcohol ester, 13%-15% of maleic anhydride copolymer B, 5%-10% of alpha-alkene, 5%-10% of maleic anhydride copolymer C, 8%-13% of vinyl acetate-fumarate D and 7%-12% of alkyl naphthalene E, whereinthe raw materials are uniformly stirred with the rotation speed of 600-1000 turns/min under the temperature of 35-60 DEG C and then cooled to prepare the novel environmental-friendly high-efficiency diesel pour inhibitor. The adding quantity of the novel environmental-friendly high-efficiency diesel pour inhibitor prepared by the method is one-tenth of that of a common diesel pour inhibitor with equal effect, but the cost of the novel environmental-friendly high-efficiency diesel pour inhibitor is enhanced less than 2 percent, thereby the economic benefit is greatly enhanced; a dimethylbenzene solvent with greater toxicity is completely eliminated, and one third of a micro-toxic methylbenzene solvent is replaced by butyl acetate, thereby the environmental-friendly property is enhanced.
Description
[technical field]
The present invention relates to function fine chemistry technical field, is a kind of preparation method of novel environmental-friendly high-efficiency diesel pour inhibitor specifically.
[background technology]
Diesel pour inhibitor is claimed the diesel oil at low-temperature fluidity improver again, is a kind of additive commonly used in the present diesel production, and it improves diesel yield to refinery, improves the handiness and the significant effect of having increased economic efficiency of producing.
[summary of the invention]
The objective of the invention is to prepare a kind of novel pour point depressant, improve the condensation point and the cold filter clogging temperature of diesel oil, traditional 0# diesel oil is reduced to-10# and-20# through adding pour point depressant.
For realizing above-mentioned purpose; Design a kind of preparation method of novel environmental-friendly high-efficiency diesel pour inhibitor; It is characterized in that: adopt following raw materials by weight percent: 50～70% organic solvent A, 13～15% vinylformic acid high-carbon alcohol ester and copolymer-maleic anhydride B, 5～10% terminal olefin and copolymer-maleic anhydride C, vinyl acetate between to for plastic-fumarate D of 8～13%, 7～12% alkylnaphthalene E; At 35～60 ℃, be that 600～1000 commentaries on classics/min postcooling that stirs makes with rotating speed; Described vinylformic acid high-carbon alcohol ester and copolymer-maleic anhydride B be by vinylformic acid high-carbon alcohol ester and maleic anhydride in molar ratio 1～1.5:1 in encloses container under nitrogen protection, with 60～85 ℃, reaction 5～8h makes; The multipolymer C of described terminal olefin and maleic anhydride adopts terminal olefin and maleic anhydride 2～3:1 in molar ratio, and under nitrogen protection, with 60～85 ℃, reaction 5～8h makes in encloses container; Described vinyl acetate between to for plastic-fumarate D is to adopt vinyl acetate between to for plastic and fumarate to be 1:1～3 in molar ratio, and under nitrogen protection, with 60～85 ℃, reaction 5～8h makes in encloses container.
Described organic solvent A is that water cut is lower than 0.1% toluene and water cut to be lower than 0.1% N-BUTYL ACETATE weight ratio be the mixture of 2:1.
Described alkylnaphthalene E is commercially available CP.
Beneficial effect of the present invention: in 0# diesel oil, add the high-efficiency diesel pour inhibitor that 50ppm and 100ppm are formed by method for preparing respectively; Can make respectively-10# and-25# diesel oil; Add-on is merely 1/10th of equal effect ordinary diesel oil pour point depressant add-on; And the cost of product of the present invention only improves less than 2%, has improved economic benefit greatly; The bigger xylene solvent of toxicity that simultaneously tradition is used is rejected fully, and 1/3rd is alternative with N-BUTYL ACETATE in little malicious solvent toluene, improved environmental-protecting performance greatly.
[specific embodiment]
Be further described in the face of the present invention down.
Embodiment 1
At first use vinylformic acid high-carbon alcohol ester and maleic anhydride mol ratio 1.2:1 in encloses container under nitrogen protection, 60～85 ℃ the reaction 5～8h make vinylformic acid high-carbon alcohol ester and copolymer-maleic anhydride B; By terminal olefin and maleic anhydride mol ratio 2:1, in encloses container under nitrogen protection, at 60～85 ℃ of reaction terminal olefins that make of 5～8h and the multipolymer C of maleic anhydride; By vinyl acetate between to for plastic and fumarate mol ratio is 1:1.5, in encloses container, under nitrogen protection, reacts vinyl acetate between to for plastic-fumarate D that 5～8h make at 60～85 ℃.
Secondly in the mixture A of 100g toluene and 50g vinyl acetic monomer composition; Add 75 gram vinylformic acid high-carbon alcohol ester and copolymer-maleic anhydride B earlier; The multipolymer C that adds 50g terminal olefin and maleic anhydride again adds 8g vinyl acetate between to for plastic-fumarate D again, adds 13g alkylnaphthalene E at last; At 35～60 ℃, be that 600～1000 commentaries on classics/min postcooling to the room temperature that stirs gets finished product with rotating speed.
Embodiment 2
At first use vinylformic acid high-carbon alcohol ester and maleic anhydride mol ratio 1.2:1 in encloses container under nitrogen protection, 60～85 ℃ the reaction 5～8h make vinylformic acid high-carbon alcohol ester and copolymer-maleic anhydride B; By terminal olefin and maleic anhydride mol ratio 2.2:1, in encloses container under nitrogen protection, at 60～85 ℃ of reaction terminal olefins that make of 5～8h and the multipolymer C of maleic anhydride; By vinyl acetate between to for plastic and fumarate mol ratio is 1:1.5, in encloses container, under nitrogen protection, reacts vinyl acetate between to for plastic-fumarate D that 5～8h make at 60～85 ℃.
Secondly in the mixture A of 100g toluene and 50g vinyl acetic monomer; Add 72 gram vinylformic acid high-carbon alcohol ester and copolymer-maleic anhydride B earlier; The multipolymer C that adds 48g terminal olefin and maleic anhydride again adds 8g vinyl acetate between to for plastic-fumarate D again, adds 15g alkylnaphthalene E at last; At 35～60 ℃, be that 600～1000 commentaries on classics/min postcooling to the room temperature that stirs gets finished product with rotating speed.
Claims (1)
1. the preparation method of an environmental-friendly high-efficiency diesel pour inhibitor; It is characterized in that: adopt following raw materials by weight percent: 50～70% organic solvent A, 13～15% vinylformic acid high-carbon alcohol ester and copolymer-maleic anhydride B, 5～10% terminal olefin and copolymer-maleic anhydride C, vinyl acetate between to for plastic-fumarate D of 8～13%, 7～12% alkylnaphthalene E; At 35～60 ℃; With rotating speed is that 600～1000 commentaries on classics/min postcooling that stirs makes, and the per-cent sum of each component is 100% in the said raw material; Described vinylformic acid high-carbon alcohol ester and copolymer-maleic anhydride B be by vinylformic acid high-carbon alcohol ester and maleic anhydride in molar ratio 1～1.5:1 in encloses container under nitrogen protection, with 60～85 ℃, reaction 5～8h makes; The multipolymer C of described terminal olefin and maleic anhydride adopts terminal olefin and maleic anhydride 2～3:1 in molar ratio, and under nitrogen protection, with 60～85 ℃, reaction 5～8h makes in encloses container; Described vinyl acetate between to for plastic-fumarate D is to adopt vinyl acetate between to for plastic and fumarate to be 1:1～3 in molar ratio, and under nitrogen protection, with 60～85 ℃, reaction 5～8h makes in encloses container; Described organic solvent A is that water cut is lower than 0.1% toluene and water cut to be lower than 0.1% N-BUTYL ACETATE weight ratio be the mixture of 2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100511519A CN101619248B (en) | 2009-05-14 | 2009-05-14 | Method for preparing novel environmental-friendly high-efficiency diesel pour inhibitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100511519A CN101619248B (en) | 2009-05-14 | 2009-05-14 | Method for preparing novel environmental-friendly high-efficiency diesel pour inhibitor |
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| Publication Number | Publication Date |
|---|---|
| CN101619248A CN101619248A (en) | 2010-01-06 |
| CN101619248B true CN101619248B (en) | 2012-11-21 |
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| CN2009100511519A Expired - Fee Related CN101619248B (en) | 2009-05-14 | 2009-05-14 | Method for preparing novel environmental-friendly high-efficiency diesel pour inhibitor |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812348B (en) * | 2010-05-21 | 2013-03-20 | 北京奥力助兴石化有限公司 | Diesel pour point depressant |
| US20130239465A1 (en) * | 2012-03-16 | 2013-09-19 | Baker Hughes Incorporated | Cold Flow Improvement of Distillate Fuels Using Alpha-Olefin Compositions |
| CN102690705A (en) * | 2012-04-25 | 2012-09-26 | 金陵科技学院 | Synthesis process of novel lubricant pour point depressant |
| CN103641956B (en) * | 2013-12-25 | 2016-04-27 | 济南开发区星火科学技术研究院 | A kind of preparation method of diesel pour inhibitor |
| CN109306281A (en) * | 2018-11-06 | 2019-02-05 | 烟台索山机械有限公司 | A kind of pour depressant for lubricating oil and preparation method thereof |
| CN113322056B (en) * | 2021-08-02 | 2021-11-23 | 德仕能源科技集团股份有限公司 | High-efficiency pour point depressant for crude oil and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4512775A (en) * | 1983-10-03 | 1985-04-23 | Ethyl Corporation | Cold flow improver |
| CN1358826A (en) * | 2001-12-25 | 2002-07-17 | 李鸿图 | Agent for improving low temp. flowability of diesel |
| CN1475512A (en) * | 2002-08-16 | 2004-02-18 | 中国石油天然气股份有限公司 | Preparation method of diesel pour point depressant composition |
| CN1654607A (en) * | 2003-12-16 | 2005-08-17 | 英菲诺姆国际有限公司 | Cold flow improver compositions for fuels |
-
2009
- 2009-05-14 CN CN2009100511519A patent/CN101619248B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4512775A (en) * | 1983-10-03 | 1985-04-23 | Ethyl Corporation | Cold flow improver |
| CN1358826A (en) * | 2001-12-25 | 2002-07-17 | 李鸿图 | Agent for improving low temp. flowability of diesel |
| CN1475512A (en) * | 2002-08-16 | 2004-02-18 | 中国石油天然气股份有限公司 | Preparation method of diesel pour point depressant composition |
| CN1654607A (en) * | 2003-12-16 | 2005-08-17 | 英菲诺姆国际有限公司 | Cold flow improver compositions for fuels |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2002-348582A 2002.12.04 |
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