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Alcohol-based ternary deep-eutectic solvent and preparation method thereof

A deep eutectic solvent and alcohol-based technology, applied in the direction of separation methods, organic chemistry methods, chemical instruments and methods, etc., can solve the problems of restricting large-scale industrial application and development, complex synthesis of ionic liquids, and difficult purification, reaching a distance Increased size, easy access to raw materials, and simple process

Inactive Publication Date: 2015-11-11
TIANJIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ionic liquids have disadvantages such as complex synthesis, difficult purification, and high cost, which limit their large-scale industrial application and development.
In addition, relevant toxicological studies have shown that pyridine and imidazole ionic liquids are not completely "green", and their toxicity is comparable to or even greater than that of traditional organic solvents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A ternary deep eutectic solvent based on alcohol group, which is composed of alcohol group-hydrogen bond donor-quaternary ammonium salt ternary system, wherein the alcohol group is 1,2-propanediol, the hydrogen bond donor is urea, quaternary ammonium salt It is choline chloride; the molar ratio of alcohol group, hydrogen bond donor and quaternary ammonium salt is 1:1:1.

[0017] The preparation method of the ternary deep eutectic solvent based on alcohol group, 7.31 milliliters (0.01mol) 1,2-propylene glycol, 6.00 grams (0.01mol) urea are mixed with 14.00 grams (0.01mol) choline chloride, heating to 60°C and keep it for 1h until the material is completely dissolved to form a colorless transparent clear liquid; after the reaction is completed, put it in an oven and dry it at 80°C for 12 hours to obtain a viscous liquid, which is a deep eutectic solvent 1,2-propanediol— Urea-choline chloride.

[0018] The application of the alcohol-based ternary deep eutectic solvent is ...

Embodiment 2

[0020] A ternary deep eutectic solvent based on an alcohol group, consisting of an alcohol group-hydrogen bond donor-quaternary ammonium salt ternary system, wherein the alcohol group is ethylene glycol, the hydrogen bond donor is urea, and the quaternary ammonium salt is chlorine Choline; the molar ratio of alcohol group, hydrogen bond donor and quaternary ammonium salt is 1:1:1.

[0021] The preparation method of the ternary deep eutectic solvent based on alcohol group, 5.58 milliliters (0.1mol) ethylene glycol, 6.00 grams (0.01mol) urea are mixed with 14.00 grams (0.1mol) choline chloride, heated to 80 ℃, and keep it for 1 hour to form a colorless transparent clear liquid; after the reaction is completed, put it into an oven and dry it at 80 ℃ for 12 hours to obtain a viscous liquid and obtain a deep eutectic solvent ethylene glycol-urea-choline chloride.

[0022] The application of the alcohol-based ternary deep eutectic solvent is used as a mobile phase additive in high p...

Embodiment 3

[0024] A ternary deep eutectic solvent based on an alcohol group, consisting of an alcohol group-hydrogen bond donor-quaternary ammonium salt ternary system, wherein the alcohol group is ethylene glycol, the hydrogen bond donor is citric acid, and the quaternary ammonium salt is Choline chloride; molar ratio of alcohol group, hydrogen bond donor and quaternary ammonium salt is 1:1:1.

[0025] The preparation method of the ternary deep eutectic solvent based on alcohol group, 5.58 milliliters (0.1mol) ethylene glycol, 19.21 grams (0.1mol) citric acid are mixed with 14.00 grams (0.1mol) choline chloride, heated to Keep it at 80°C for 1 hour to form a colorless transparent clear liquid; after the reaction is completed, put it into an oven and dry it at 80°C for 12 hours to obtain a viscous liquid and obtain a deep eutectic solvent ethylene glycol-citric acid-choline chloride .

[0026] The application of the alcohol-based ternary deep eutectic solvent is used as a mobile phase a...

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Abstract

An alcohol-based ternary deep-eutectic solvent is composed of a ternary system comprising an alcohol group, a hydrogen-bond donor and quaternary ammonium salt. A preparation method for the alcohol-based ternary deep-eutectic solvent comprises the following steps: uniformly mixing the alcohol group, the hydrogen-bond donor and quaternary ammonium salt, heating the mixture to 60-100 DEG C, and keeping heat for 0.5-2 h until materials are completely dissolved; after completion of reaction, putting the mixture into a drying oven for drying for 12 h at the temperature of 80 DEG C so as to obtain viscous liquid namely the target object; the alcohol-based ternary deep-eutectic solvent is used as a mobile phase additive in high performance liquid chromatography, and used for extraction separation of bioactive components, organic catalytic synthesis and gas absorption. The alcohol-based ternary deep-eutectic solvent has the advantages as follows: the preparation method is simple in process, raw materials are easy to obtain, by-products are not produced in the reaction process, the product can be biodegradable, pollution to the environment is reduced greatly, and the prepared product is high in purity, low in melting point and viscosity, high in stability and suitable for industrial production.

Description

technical field [0001] The invention relates to a solvent preparation technology, in particular to an alcohol-based ternary deep eutectic solvent and a preparation method thereof. Background technique [0002] Ionic liquids have unique physical and chemical properties such as low vapor pressure, non-flammability, excellent solubility and conductivity, and wide electrochemical stability window. They have attracted much attention in the fields of separation technology, biocatalysis, organic synthesis, and electrochemistry. However, ionic liquids have disadvantages such as complex synthesis, difficult purification, and high cost, which limit their large-scale industrial application and development. In addition, relevant toxicological studies have shown that pyridine and imidazole ionic liquids are not completely "green", and their toxicity is comparable to or even greater than that of traditional organic solvents. Therefore, it is of great significance to find alternative solv...

Claims

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Application Information

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IPC IPC(8): C07B61/00B01D15/12
Inventor 朱涛唐为扬
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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