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Imidazolyl Ionic liquids preparing method

A technology of ionic liquid and magnetic ionic liquid, which is applied in the fields of magnetism and organic chemistry of organic materials/organic magnetic materials, can solve the problems of high cost, complex process, poor product effect, etc., and achieve reduced surface tension and simple synthesis process , Improve the performance and scope of application

Inactive Publication Date: 2017-01-25
JIANGSU CALE NEW MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is to provide a method for preparing an imidazole-based ionic liquid, so as to solve the problems of high cost, complicated process and poor effect of the obtained product in the prior art.

Method used

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  • Imidazolyl Ionic liquids preparing method

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Effect test

Embodiment 1

[0031] Such as figure 1 The preparation method of the ionic liquid of a kind of imidazole group shown, comprises the following steps;

[0032] The first step is to synthesize the magnetic ionic liquid cation, dissolve the alkylimidazolium chloride salt and NaOH solution in ethanol at an equimolar ratio, and stir at a uniform speed in one direction at room temperature for 3 hours at a stirring speed of 2000 rpm, and then let it stand And naturally precipitate and filter, and dry and dehydrate the precipitate obtained after filtration in a vacuum environment, and the drying temperature is 30°C, and the cationic reactant can be obtained;

[0033] The second step is to synthesize the magnetic ionic liquid anion. Anhydrous ferric chloride and NaOH are dissolved in water at a molar ratio of 1:3 to form a clear and transparent liquid. Then the two liquids are mixed, and the mixed liquid is mixed. Stir at a constant speed, the stirring speed is 50 rpm, and the mixed solution is fully...

Embodiment 2

[0038] Such as figure 1 The preparation method of the ionic liquid of a kind of imidazole group shown, comprises the following steps;

[0039] The first step is to synthesize the magnetic ionic liquid cation, dissolve the hydroxyimidazolium chloride salt and the potassium hydroxide solution in acetonitrile in an equimolar ratio, and stir at a uniform speed in one direction at room temperature for 1 hour at a stirring speed of 1500 rpm, and then statically Place and naturally precipitate and filter, and dry and dehydrate the filtered precipitate in a vacuum environment, and the drying temperature is 40°C to obtain the cationic reactant;

[0040] The second step is to synthesize a magnetic ionic liquid anion. Manganese bromide and NaOH are dissolved in water at a molar ratio of 1:4 to form a clear and transparent liquid. Then the two liquids are mixed, and the mixed liquid is unidirectionally uniform during mixing. Stir at a stirring speed of 40 revolutions per minute, and full...

Embodiment 3

[0045] Such as figure 1 The preparation method of the ionic liquid of a kind of imidazole group shown, comprises the following steps;

[0046] The first step is to synthesize the magnetic ionic liquid cation, and dissolve the aminoimidazolium chloride salt and NaOH solution in dichloroethane in an equimolar ratio, and stir at a uniform speed in one direction at room temperature for 2 hours, and the stirring speed is 2500 rpm. Then stand still and naturally precipitate and filter, and dry and dehydrate the filtered precipitate in a vacuum environment, and the drying temperature is 50°C to obtain the cationic reactant;

[0047] The second step is to synthesize the magnetic ionic liquid anion, dissolve cobalt chloride 6 hydrate and NaOH in water at a molar ratio of 1:4 to form a clear and transparent liquid, then mix the two liquids, and perform a single Stir at a constant speed, the stirring speed is 10 revolutions per minute, and the mixed solution is fully precipitated, and the...

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Abstract

The invention discloses a preparing method of an imidazolyl ionic liquid which comprises synthesizing a magnetic ionic liquid positive ion, synthesizing a magnetic ionic liquid negative ion, preparing a magnetic ionic liquid negative ion solution, concentrating and magnetic adjusting, etc. Compared with the prior art, the imidazolyl Ionic liquids preparing method is simple. On the one hand, the water solubility of the magnetic ionic liquid is effectively improved and the surface tension is reduced. On the other hand, the oxidation-reduction quality, stability of magnets and magnetic regulating ability of the magnetic ionic liquid are improved. In addition, the varieties of magnetic particles in magnetic ion liquid are effectively expanded, thereby, the usability of magnetic ionic liquid and scope of application are effectively improved and enhanced, together with the reduction of production cost.

Description

technical field [0001] The invention belongs to the technical field of magnetic materials, and in particular relates to a preparation method of an imidazole-based ionic liquid. Background technique [0002] At present, magnetic ionic liquids not only have the characteristics of ionic liquids, but also have good magnetic response properties, special optical properties, and catalytic properties. Flexible to meet the needs of a variety of specific use environments, so magnetic ionic liquids are currently widely used, but with the continuous progress and development of the application technology of magnetic ionic liquids, the magnetic ionic liquids produced by the current magnetic example liquid preparation process On the one hand, the production cost is high, the production process is not flexible enough, and it is difficult to master. On the other hand, the current magnetic ionic liquid has a large surface tension, a relatively insufficient magnetic adjustment ability and redo...

Claims

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Application Information

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IPC IPC(8): C07D233/58H01F1/42
CPCC07D233/58H01F1/42
Inventor 吴天平赵春霞
Owner JIANGSU CALE NEW MATERIALS
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