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Apparatus for manufacturing dichlorohydrin and manufacturing method thereof

A technology for dichloropropanol and a manufacturing device, which is applied to chemical instruments and methods, preparation of organic compounds, preparation of halogen introduction, etc., can solve problems such as difficulty in recycling catalysts, increasing manufacturing costs, etc.

Inactive Publication Date: 2017-12-08
王圣洁
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Problems solved by technology

[0004] However, when using this method to prepare dichloropropanol, an azeotrope (azeotrope) of dichloropropanol and water will be formed. If an extractant (extractant) is added to separate the azeotrope to obtain dichloropropanol, it will increase the production efficiency. cost, and the extractant may also form an azeotrope with the catalyst, causing difficulties in the recycling of the catalyst

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  • Apparatus for manufacturing dichlorohydrin and manufacturing method thereof
  • Apparatus for manufacturing dichlorohydrin and manufacturing method thereof
  • Apparatus for manufacturing dichlorohydrin and manufacturing method thereof

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Embodiment Construction

[0079] Figure 1A It is a schematic diagram of the production device of dichloropropanol according to the first embodiment of the present invention. Figure 1B It is a flow chart of the production of dichloropropanol according to the first embodiment of the present invention.

[0080] Please refer to Figure 1A , The first embodiment provides a production device 100 of dichloropropanol, which is suitable for producing dichloropropanol by reacting glycerin and aqueous hydrogen chloride solution in the presence of a catalyst. The production device 100 of dichloropropanol includes at least one reactor 102 , a thermally coupled distillation device 104 , a phase separator 106 and a water supply device 108 . A thermally coupled distillation unit 104 is connected to the reactor 102 . A phase separator 106 is connected to the top of the thermally coupled distillation unit 104 to form an aqueous phase product and an organic phase product including dichloropropanol in the phase separat...

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Abstract

The invention discloses an apparatus for manufacturing dichlorohydrin and a manufacturing method thereof, wherein the apparatus for manufacturing dichlorohydrin is suitable for generating dichlorohydrin by reaction between glycerol and hydrogen chloride solution in the presence of a catalyst. The apparatus for manufacturing dichlorohydrin comprises at least a reactor, a thermal coupled distillation unit, a first phase splitter and a first water supplier, wherein, the thermal coupled distillation unit is connected to at least one reactor; the first phase splitter is connected to the top of the hermal coupled distillation unit to form a first water- phase product and a first organic phase product comprising dichlorohydrin in the first phase splitter; and the first water supplier is connected to the first phase splitter. The invention can be used to reduce manufacture cost.

Description

technical field [0001] The invention relates to a dichloropropanol production device and a production method thereof, in particular to a dichloropropanol production method with a phase separator. Background technique [0002] At present, the main preparation method of dichloropropanol is the high-temperature chlorination of propene, which includes two steps: chlorinating propene at high temperature to generate allyl chloride, and using excessive industrial water, Allyl chloride is reacted with a chlorinating agent to form dichloropropanol. However, the use of high-temperature chlorination of propylene generates a large amount of wastewater and other wastes, thus posing technical and environmental problems. [0003] Therefore, a method of directly reacting glycerol and a chlorinating agent to produce dichloropropanol under the condition of a catalyst has been developed. This method will not produce a large amount of waste water and waste, so it is a more economical and envir...

Claims

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Application Information

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IPC IPC(8): C07C29/62C07C29/82C07C29/76C07C31/36
CPCC07C29/62C07C29/76C07C29/82C07C31/36
Inventor 王圣洁汪上晓郑西显黄筱涵
Owner 王圣洁
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