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Preparation method of boron trifluoride tetrahydrofuran

A technology of tetrahydrofuran and boron trifluoride, applied in the chemical industry, can solve the problems of difficult control of reaction temperature and high drying cost, and achieve the effects of easy control of reaction temperature and low cost

Inactive Publication Date: 2013-02-06
江峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the production technology in Japan and the United States is to use boron trifluoride and tetrahydrofuran liquid to react, and dry it with a magnesium drum to obtain flake boron trifluoride tetrahydrofuran. This reaction is an exothermic reaction, the reaction temperature is difficult to control, and the product drying cost high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The production technology of boron trifluoride tetrahydrofuran comprises the following steps:

[0014] Slowly add tetrahydrofuran dropwise into the caustic soda kettle, absorb water to generate tetrahydrofuran vapor, introduce tetrahydrofuran vapor into the complexation device, and simultaneously introduce boron trifluoride gas for complexation reaction. The mass ratio of tetrahydrofuran to boron trifluoride gas is 1:2 for the reaction, the temperature is controlled between 30 °, the reaction time is 2 hours; after drying, boron trifluoride tetrahydrofuran is obtained.

Embodiment 2

[0016] The production technology of boron trifluoride tetrahydrofuran comprises the following steps:

[0017] Slowly add tetrahydrofuran dropwise into the caustic soda kettle, absorb water to generate tetrahydrofuran vapor, introduce tetrahydrofuran vapor into the complexation device, and simultaneously introduce boron trifluoride gas for complexation reaction. The mass ratio of tetrahydrofuran to boron trifluoride gas is 1:4 for reaction, the temperature is controlled between 50°, the reaction time is 5 hours; boron trifluoride tetrahydrofuran is obtained after drying.

Embodiment 3

[0019] The production technology of boron trifluoride tetrahydrofuran comprises the following steps:

[0020] Slowly add tetrahydrofuran dropwise into the caustic soda kettle, absorb water to generate tetrahydrofuran vapor, introduce tetrahydrofuran vapor into the complexation device, and simultaneously introduce boron trifluoride gas for complexation reaction. The mass ratio of tetrahydrofuran to boron trifluoride gas is 1:3 for reaction, the temperature is controlled between 40°, the reaction time is 3 hours; boron trifluoride tetrahydrofuran is obtained after drying.

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PUM

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Abstract

The invention discloses a preparation method of boron trifluoride tetrahydrofuran, which is characterized in that the boron trifluoride tetrahydrofuran is prepared by tetrahydrofuran vapour and boron trifluoride gas through complex reaction. The preparation method has the advantages that the boron trifluoride tetrahydrofuran is prepared by the tetrahydrofuran vapour and the boron trifluoride gas through the complex reaction, the cost is low and the reaction temperature is easy to control at a room or higher temperature.

Description

technical field [0001] The invention relates to a preparation method of boron trifluoride tetrahydrofuran, which belongs to the field of chemical industry. Background technique [0002] At present, the production technology in Japan and the United States is to use boron trifluoride and tetrahydrofuran liquid to react, and dry it with a magnesium drum to obtain flake boron trifluoride tetrahydrofuran. This reaction is an exothermic reaction, the reaction temperature is difficult to control, and the product drying cost high. Therefore, a new production process needs to be provided to solve the above problems. Contents of the invention [0003] The purpose of this invention is to provide a kind of production technique of boron trifluoride tetrahydrofuran. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is: [0005] The preparation method of boron trifluoride tetrahydrofuran is prepared by complexing reaction of tetrahyd...

Claims

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Application Information

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IPC IPC(8): C07F5/02
Inventor 江峰
Owner 江峰
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