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Isocrotyl acylamide isoheptyl ester composition and preparation method

A technology of methacrylamide and crotonamide, which is applied in the field of external admixtures, can solve the problems that unleaded gasoline octane index is difficult to achieve high standardization, difficult to achieve ideal results, excess straight-run gasoline, etc., and achieves low cost and high performance. Significant, low-addition effects

Inactive Publication Date: 2010-02-10
XIAN JIAHONG PETROCHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The octane index of unleaded gasoline is difficult to achieve a high standard, and the olefin content is seriously exceeded. The more problem is the excess of straight-run gasoline, which is difficult to fully become a standard product
The defect that it is difficult to achieve the desired effect when only processing and blending methods are used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The isobutenyl amide isoheptyl ester is composed of 65 to 70 parts of tetrahydrofurfuryl alcohol, 22 to 30 parts of butenamide, 5 to 7 parts of ethyl acetate, 0.003 to 0.008 parts of 2,6-di-tert-butyl according to the mass ratio p-cresol and 0.003 to 0.008 parts of isothiazolinone are compounded.

[0037] The antioxidants are 2,6-di-tert-butyl-p-cresol, 4,4-methylenebis-2,6-di-tert-butylphenol.

[0038] The preservative is isothiazolinone, 4-phenyl-1-butanol.

[0039] The preparation method of the above composition is the same.

[0040] A preparation method of isobutenyl amide isoheptyl ester is carried out according to the following steps:

[0041] A, take by weight crotonamide, ethyl acetate, 2,6-di-tert-butyl-p-cresol, isothiazolinone by mass ratio;

[0042] B, tetrahydrofurfuryl alcohol is added in the reactor and vacuumized, its vacuum degree is 0.4Mpa, and its vacuum time is more than finished, and the reactor is warming up to 70 ℃~75 ℃ ± 1 ℃;

[0043] C, add ...

Embodiment 2

[0047] The isobutenyl amide isoheptyl ester is composed of 70 to 75 parts of tetrahydrofurfuryl alcohol, 13 to 25 parts of butenamide, 5 to 12 parts of ethyl acetate, 0.005 to 0.008 parts of 2,6-di-tert-butyl according to the mass ratio p-cresol, 0.005 part to 0.008 part of isothiazolinone, the preparation method is the same as that of Example 1.

Embodiment 3

[0049] The isobutenyl amide isoheptyl ester is composed of 72 to 74 parts of tetrahydrofurfuryl alcohol, 15.5 to 21.5 parts of crotonamide, 6 to 11 parts of ethyl acetate, 0.006 to 0.007 parts of 2,6-di-tert-butyl by mass ratio p-cresol, 0.006 part to 0.007 part of isothiazolinone, the preparation method is the same as that of Example 1.

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Abstract

The invention discloses an isocrotyl acylamide isoheptyl ester composition and a preparation method. The composition comprises tetrahydrofurfuryl alcohol, crotonamide, ethyl acetate, antioxidant and preservative; the preparation method comprises the following steps: weighing the chemical raw materials according to the mass ratio; adding the tetrahydrofurfuryl alcohol to a reaction kettle, vacuumizing and raising the temperature of the reaction kettle to 70-75 DEG C; adding the crotonamide and the ethyl acetate, stirring and cooling by a cooler to about 25 DEG C; and adding 6-di tert butyl paracresol and isothiazole quinoline ketone and stirring so as to obtain a product. The composition has no toxicity, no pollution, no special peculiar smell and little addition quantity, obviously improves the performance of a gasoline octane number promoter, is brown oil transparent liquid, and has the density of 970-990Kg / m<3>, the solidifying point of not higher than -50 DEG C, and the boiling point of 180+ / -5 DEG C. The invention has simple process, low cost, oil saving and pollution reduction, reduces the fuel oil sediment of an engine, lightens the abrasion of the engine and is widely usedfor petrochemicals.

Description

technical field [0001] The invention relates to an external admixture used in petroleum products, in particular to an isobutenyl amide isoheptyl ester composition and a preparation method. Background technique [0002] Over the years, manganese-based organic compounds are one of the best quality octane accelerators among many metal and non-metallic octane accelerators, abbreviated as MMT. MMT can effectively increase the octane number in unleaded gasoline, and also reduce engine wear; but its biggest disadvantage is the high cost, about four times that of lead octane boosters, and it also has damage The effect of automobile exhaust purification makes it controversial in use, and more importantly, the octane number can only increase by 2 to 2.5 units after adding it. Long-term use is bound to cause metal accumulation, spark plug failure, shortened exhaust valve life, and increased combustion chamber carbon deposits. [0003] People are also studying the use of pure organic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/24C10L1/224C10L1/185C10L1/19C10L10/10
Inventor 王宏
Owner XIAN JIAHONG PETROCHEM TECH
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