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Mercaptobenzothiazoles anti-corrosion ionic liquid as well as preparation method and application thereof

A technology of mercaptobenzothiazole and ionic liquid, which is applied in the petroleum industry, additives, organic chemistry, etc., and can solve the problems of metal friction pair corrosion, degradation and easy generation of corrosive acid, etc.

Active Publication Date: 2017-02-01
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although ionic liquids have shown excellent anti-friction, anti-wear and load-bearing properties as lubricants or lubricating oil additives, in the process of their application research, it is found that there are still many problems that cannot be ignored, such as: degradation is easy to produce corrosive acids, Causes serious corrosion to metal friction pairs, thus limiting the application of ionic liquids as lubricating materials

Method used

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  • Mercaptobenzothiazoles anti-corrosion ionic liquid as well as preparation method and application thereof
  • Mercaptobenzothiazoles anti-corrosion ionic liquid as well as preparation method and application thereof
  • Mercaptobenzothiazoles anti-corrosion ionic liquid as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Dissolve 33.45g of mercaptobenzothiazole and 11.22g of potassium hydroxide in 50mL of methanol respectively, then mix the two in a 500mL three-necked round-bottomed flask equipped with a condenser tube and a thermometer, and stir for 30min at 40°C. The solution remains clear and transparent throughout. After the solution was cooled to room temperature, 38.21 g of 1-methyl-3-ethylimidazole chloride was added, and the reaction was stirred for 36 hours, during which a precipitate gradually formed. The product was filtered through slow filter paper, washed three times with 150mL methanol, the filtrate was rotary evaporated to remove the solvent, and then vacuum-dried at 80°C for 24h to obtain a mercaptobenzothiazole corrosion-resistant ionic liquid, which was designated as [EMIM][MBT].

[0029] Dissolve 1g of mercaptobenzothiazole-based anti-corrosion ionic liquid [EMIM][MBT] in 99g of base oil PEG200, and disperse by ultrasonic wave for 3min to obtain 100g of lubricant com...

Embodiment 2

[0031]Dissolve 33.45g of mercaptobenzothiazole and 11.22g of potassium hydroxide in 50mL of methanol respectively, then mix the two in a 500mL three-necked round-bottomed flask equipped with a condenser tube and a thermometer, and stir for 30min at 40°C. The solution remains clear and transparent throughout. After the solution was cooled to room temperature, 42.03 g of 1-methyl-3-ethylimidazole chloride was added, and the reaction was stirred for 20 h, during which a precipitate gradually formed. The product was filtered through slow filter paper, washed three times with 150mL methanol, the filtrate was rotary evaporated to remove the solvent, and then vacuum-dried at 80°C for 24h to obtain a mercaptobenzothiazole corrosion-resistant ionic liquid, which was designated as [EMIM][MBT].

[0032] Dissolve 1g of mercaptobenzothiazole anti-corrosion ionic liquid [EMIM][MBT] in 99g of base oil PEG400, and disperse by ultrasonic wave for 3min to obtain 100g of lubricant combination co...

Embodiment 3

[0034] Dissolve 33.45g of mercaptobenzothiazole and 11.22g of potassium hydroxide in 50mL of methanol respectively, then mix the two in a 500mL three-necked round-bottomed flask equipped with a condenser tube and a thermometer, and stir for 30min at 40°C. The solution remains clear and transparent throughout. After the solution was cooled to room temperature, 38.21 g of 1-methyl-3-ethylimidazole chloride was added, and the reaction was stirred for 36 hours, during which a precipitate gradually formed. The product was filtered through slow filter paper, washed three times with 150mL methanol, the filtrate was rotary evaporated to remove the solvent, and then vacuum-dried at 80°C for 24h to obtain a mercaptobenzothiazole corrosion-resistant ionic liquid, which was designated as [EMIM][MBT].

[0035] Dissolve 2g of mercaptobenzothiazole-based anti-corrosion ionic liquid [EMIM][MBT] in 98g of base oil PEG600, and disperse by ultrasonic wave for 3 minutes to obtain 100g of lubrican...

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Abstract

The invention discloses mercaptobenzothiazoles anti-corrosion ionic liquid. The name of the ionic liquid is [EMIM] [MBT] or [CHO][MBT], and the structural formula of the ionic liquid is described in the description. The invention also discloses a preparation method of the ionic liquid, and application of the ionic liquid in a lubricant composition. The mercaptobenzothiazoles anti-corrosion ionic liquid has excellent corrosion resistance; the lubricant composition containing the ionic liquid has good tribological properties.

Description

technical field [0001] The invention relates to a mercaptobenzothiazole anti-corrosion ionic liquid and a preparation method and application thereof. The ionic liquid has excellent anti-corrosion properties, and a lubricant composition containing the ionic liquid has good tribological properties. Background technique [0002] Since the 1990s, the birth of the second-generation ionic liquids that are stable to air and water has attracted widespread attention, and has quickly become the frontier and research hotspot of contemporary chemical science, and is an important direction of chemical development in the 21st century (WilkesJ.S. , Zaworotko M.J., J Chem. Soc. Chem. Commun., 1992: 965-967.). "Zero" vapor pressure, wide liquid range, wide electrochemical window, strong electrostatic field, good ionic and thermal conductivity, high heat capacity and thermal energy storage density, high thermal stability, selective solvency and designability And other characteristics make io...

Claims

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Application Information

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IPC IPC(8): C07D277/72C10M135/36C10N30/06C10N30/12
CPCC07D277/72C10M135/36C10N2030/06C10N2030/12
Inventor 张松伟胡丽天李毅丁奇秦宝锋李昊坤
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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