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Continuous production device of ionic liquid based on sleeve reactor

A production device and ionic liquid technology, applied in the field of ionic liquid continuous production devices, can solve the problems of immature process parameters, immature technology, unsatisfactory chemical equipment, etc. , the effect of low cost

Inactive Publication Date: 2016-06-29
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are not too many technical problems in the preparation of various ionic liquids in the laboratory, but the production of these ionic liquids on an industrial scale is still technically immature, and there are still many problems. For example, traditional chemical equipment cannot meet its production needs. The process production equipment and process parameters are still immature, and most colleges and enterprises are limited to small-scale preparation and production of ionic liquids with traditional chemical equipment and process technology. Therefore, it can be said that the scale of ionic liquids has so far The production technology is still in the research stage. For this, it is necessary to design and develop a device suitable for the continuous production of ionic liquids on an industrial scale, so as to increase the output of ionic liquids and meet the needs of ionic liquids on an industrial scale. On the other hand, Reduce the production cost of ionic liquids on the overall level so as to reduce the product price of ionic liquids, which is conducive to the popularization and promotion of the application of ionic liquids

Method used

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  • Continuous production device of ionic liquid based on sleeve reactor

Examples

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Effect test

Embodiment 1

[0019] Embodiment 1, a kind of ionic liquid continuous production device based on sleeve reactor

[0020] A continuous ionic liquid production device based on a sleeve reactor, such as figure 1 As shown, including pre-mixing equipment (H01), sleeve-type preheating reactor (T01), sleeve-type transfer heat reactor (T02), preheating heat compensation equipment (H02), heating heat compensation equipment (H03) and Jacketed heating reactor (T03).

[0021] The premixing equipment (H01) includes a premixing chamber (H01A) and a low temperature tube (H01B), wherein the premixing chamber (H01A) is used to provide space and place for the reactants to be fully premixed, and the mixing process can be stirring Mixing and pump mixing; cryogenic pipe (H01B) is used to reduce the temperature of the reaction material and inhibit the reaction process. The cryogenic pipe can be a straight pipe or a coil pipe with a cooling medium inside. The cooling medium can be water, frozen brine, or heat tra...

Embodiment 2

[0033] Example 2. Using the continuous ionic liquid production device based on the sleeve reactor of the present invention to prepare 1-pentyl-3-methylimidazolium chloride salt ([PMim]Cl):

[0034] Raw material A: N-methylimidazole, 205.25g / min, 2.5mol / min;

[0035] Raw material B: chloropentane, 266.47g / min, 2.5mol / min;

[0036] Pressure range: 213kPa (inlet) 36kPa (outlet);

[0037] Temperature range: 55°C (inlet) ~ 159°C (outlet);

[0038] Residence time: 22.6h;

[0039] Product yield: 99.3%;

[0040] Product purity: 99.2%.

Embodiment 3

[0041] Example 3. Using the continuous ionic liquid production device based on the sleeve reactor of the present invention to prepare 1-butyl-3-methylimidazolium bromide ([BMim]Br):

[0042] Raw material A: N-methylimidazole, 410.50g / min, 5mol / min;

[0043] Raw material B: n-butane bromide, 685.14g / min, 5mol / min;

[0044] Pressure range: 241kPa (inlet) 34kPa (outlet);

[0045] Temperature range: 59°C (inlet) ~ 164°C (outlet);

[0046] Residence time: 19h;

[0047] Product yield: 99.2%;

[0048] Product purity: 99.0%.

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Abstract

The invention relates to a continuous ionic liquid production device based on a casing reactor. The continuous ionic liquid production device is an ionic liquid production device of integrating the functions of premixing, preheating reaction, heat transfer reaction, heating reaction and backmixing. The device comprises premixing equipment, a cased preheating reactor, a cased heat transfer reactor, preheating heat compensation equipment, heating heat compensation equipment and a cased heating reactor. According to the continuous ionic liquid production device, different types of ionic liquids can be frequently and alternately produced and prepared; the requirements of large-scale industrial application on production of large quantities of ionic liquids are solved; the process from raw material feeding to product or semi-finished product production is automatically finished; flow and heat control is utilized in the reaction process; local abnormal overheating is prevented; the purity of final products or semi-finished products is improved; the continuous production device has the advantages that equipment is simple and convenient to build; the operation is easy; the conversion ratio of reaction materials is high; the feeding cost and the operating cost are low; and the continuous production device has the environment-friendly and energy-saving effects, and the like.

Description

technical field [0001] The invention relates to an ionic liquid production device, in particular to a continuous ionic liquid production device based on a sleeve reactor, which can integrate pre-mixing, preheating reaction, heat transfer reaction, heating reaction, and back-mixing functions into one An integrated continuous ionic liquid production device belongs to the field of chemical industry. Background technique [0002] Room temperature ionic liquids, that is, molten salts that are liquid at room temperature, are typical representatives in the field of green chemistry and chemical engineering today. Ionic liquids are salts composed of positive and negative ions with large spatial differences, thus causing the salt to appear in a liquid state at room temperature. It has a structure that can be oriented, easy to recycle and reuse in the production process, and has a relatively wide range of liquid states. temperature, almost no saturated vapor pressure so it is not easy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D233/58
CPCC07D233/58
Inventor 张慧李玉歧何清卢泽湘郑德勇廖益强陈礼辉
Owner FUJIAN AGRI & FORESTRY UNIV