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Aryl alkyl polyol ester and preparation method and application thereof

A technology for methyl aryl alkyl carboxylate and polyol ester is applied in the field of aryl alkyl polyol ester and preparation thereof, and can solve the problems of high product cost, complicated synthesis process of branched chain carboxylic acid, application limitation and the like

Inactive Publication Date: 2015-02-18
大连东方创新科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the synthesis process of branched-chain carboxylic acid is relatively complicated, resulting in high product cost and limited application.

Method used

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  • Aryl alkyl polyol ester and preparation method and application thereof
  • Aryl alkyl polyol ester and preparation method and application thereof
  • Aryl alkyl polyol ester and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] 1. Friedel-Crafts Alkylation:

[0065] ① Reactive formula

[0066]

[0067] Where: m+n=15.

[0068] ②Raw material specifications

[0069] Industrial-grade high-purity oleic acid C18:1 content ≥ 75.0%, iodine value (gI 2 / 100g) 80-100, water content ≤ 0.5%, peroxide value ≤ 10 (mg / Kg).

[0070] Industrial-grade methanesulfonic acid clear and transparent content ≥ 98.0% ion content ≤ 100ppm

[0071] Industrial grade m-xylene content ≥99.0%

[0072] ③ Raw material ratio

[0073] Oleic acid: methanesulfonic acid: m-xylene = 1:1.5:3.0 (molar ratio)

[0074] ④Synthesis process

[0075] In a sealed 2000-liter enamel reaction kettle, replace the air with nitrogen, add 496.9 kg of m-xylene and 225 kg of methanesulfonic acid, fill the reaction kettle with nitrogen protection, stir, heat up to 125 ° C, and start adding industrial high-purity oleic acid at a constant speed , control the reaction temperature at 130°C, add 440.6 kg of industrial high-purity oleic acid in 5...

Embodiment 2

[0107] 1. Friedel-Crafts alkylation reaction: same as embodiment 1.

[0108] 2. Esterification reaction:

[0109] ① Reactive formula

[0110]

[0111]

[0112] Where: m+n=15.

[0113] ②Raw material specifications

[0114] m-xylyl octadecanecarboxylic acid: prepared by the first step, content ≥ 95%, iodine value ≤ 10 (gI 2 / 100g).

[0115] Pentaerythritol But pentaerythritol content ≥ 95% hydroxyl content ≥ 47.5% coloring degree ≤ 2.

[0116] SnO content ≥90.

[0117] ③ Raw material ratio

[0118] Pentaerythritol: m-xylyl octadecanecarboxylic acid=1:4.2 (molar ratio) 0.8% (mass ratio) of stannous oxide total material

[0119] ④ process

[0120] In a 1000ml three-neck flask, add 41g of pentaerythritol, 490g of m-xylyl octadecanecarboxylic acid, 4.3g of stannous oxide, stir at 60°C for 30min, and then react at 210°C for 5 hours under a vacuum of 0.095Mpa.

[0121] Cool down to below 80°C, and filter through G3 gravel funnel to remove stannous oxide.

[0122] Extra...

Embodiment 3

[0128] 1. Friedel-Crafts Alkylation:

[0129] ① Reactive formula

[0130]

[0131] Where: m+n=15.

[0132] ②Raw material specifications

[0133] Industrial-grade high-purity methyl oleate: C18:1 content ≥ 75.0%, iodine value (gI 2 / 100g) 80-100, water content≤0.5%, acid value≤0.5(mgKOH / g), peroxide value≤10(mg / Kg).

[0134] Industrial grade methanesulfonic acid Clear and transparent Content ≥ 98.0% Ion content ≤ 100ppm

[0135] Industrial grade m-xylene content ≥99.0%

[0136] ③ Raw material ratio

[0137] Methyl oleate: methanesulfonic acid: m-xylene = 1:1.5:3.0 (molar ratio)

[0138] ④Synthesis process

[0139] In a sealed 2000-liter enamel reaction kettle, replace the air with nitrogen, add 496.9 kg of m-xylene and 225 kg of methanesulfonic acid, fill the reaction kettle with nitrogen protection, stir, heat up to 125 ° C, and start adding industrial high-purity oleic acid at a constant speed Methyl ester, control the reaction temperature at 130°C, add 462.5 kg of...

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Abstract

The invention relates to aryl alkyl polyol ester and its preparation method and belongs to the field of lubricant base oil and crude oil viscosity reducer synthesis. According to the preparation method, alkylation of alkenyl carboxylic acid and aromatic hydrocarbon is carried out to obtain aryl alkyl carboxylic acid, and esterification between aryl alkyl carboxylic acid and polyol is carried out to obtain aryl alkyl polyol ester; or alkylation of alkenyl carboxylic methyl ether and aromatic hydrocarbon is carried out to obtain aryl alkyl carboxylic methyl ether, and transesterification between aryl alkyl carboxylic methyl ether and polyol is carried out to obtain aryl alkyl polyol ester. As aryl alkyl polyol ester has large molecular weight and high viscosity, aryl alkyl polyol ester can be used as lubricant base oil, lubricating grease base oil, crude oil viscosity reducer, diesel oil pour-point depressant and the like.

Description

technical field [0001] The invention relates to an aryl alkyl polyol ester and a preparation method thereof, and belongs to the field of synthesis of lubricating oil base oil and crude oil viscosity reducer. Background technique [0002] Polyol ester-based lubricating oil is usually produced by esterification of animal and plant fatty acids with corresponding polyols; polyol esters can also be produced by transesterification of fatty acid methyl esters with polyols. Because of its good heat resistance, excellent viscosity-temperature properties, and good lubricating properties, it has broad application prospects in the fields of aero-engine lubricating oil, metal high-temperature processing oil, and fiber oil. Fatty acid polyol esters can also be used as heavy oil viscosity reducers, diesel pour point depressants, oil-soluble emulsifiers, etc., but due to the similarity between the n-alkyl structure of fatty acids and the alkylaryl structure of crude oil, the application eff...

Claims

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Application Information

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IPC IPC(8): C07C67/08C07C67/03C07C69/612C10M105/38C10L1/19
Inventor 刘春德
Owner 大连东方创新科技有限公司
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