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Epoxyethane synthesis method and production device thereof

A technology for the synthesis of ethylene oxide, applied in the production of bulk chemicals, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as corrosion and unsuitability for large-scale production, To achieve the effect of simple and safe raw materials, suitable for long-distance mass transportation, and high yield

Inactive Publication Date: 2011-06-15
ZHEJIANG UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

It does not use a catalyst, but uses sodium hydroxide to react with ethylene glycol to dehydrate it, and sodium hydroxide, as a strong base, has a strong corrosive effect on equipment, so it is not suitable for large-scale production

Method used

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  • Epoxyethane synthesis method and production device thereof
  • Epoxyethane synthesis method and production device thereof
  • Epoxyethane synthesis method and production device thereof

Examples

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Embodiment 1

[0049] Embodiment 1, a kind of synthetic method of oxirane, carries out following steps successively:

[0050] 1) Set nitrogen gas in the high-pressure gas storage tank II2, and set hydrogen gas in the high-pressure gas storage tank I1.

[0051] Since the reaction needs to be carried out under the condition of separating hydrogen and oxygen, the pressure reducing valve I5 is closed so that the pressure reducing valve II6, the shut-off valve I7, the shut-off valve II8, the shut-off valve III9, the shut-off valve IV13 and the shut-off valve V15 are all in an open state; Add 300 ml (5.40 mol) of ethylene glycol to tank 20 .

[0052] 2) The nitrogen in the high-pressure gas storage tank II2 passes through the pipeline 4 and then enters the pressure reducing valve II6 at a flow rate of 100ml / min for decompression treatment. The pressure value set by the pressure reducing valve II6 is the work in the following reaction pressure. After the nitrogen gas coming out from the pressure ...

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Abstract

The invention discloses an epoxyethane synthesis method which comprises the following steps: 1) putting glycol in a metering tank (20), introducing nitrogen gas into a high-pressure gas storage tank (2), and introducing hydrogen gas into a high-pressure gas storage tank (1); 2) placing an activated supported catalyst (24) in a fixed bed type reactor (26), wherein one part of the nitrogen gas in the high-pressure gas storage tank (2) directly moves into a vaporizing chamber (12), the glycol in a metering tank (20) moves with the other part of the nitrogen gas into the vaporizing chamber (12) to be preheated and vaporized, and the vaporized mixture of the nitrogen gas and the glycol in the vaporizing chamber (12) moves into the fixed bed type reactor (26) to be subjected to a dehydration reaction under the action of the activated supported catalyst (24); and 3) condensing the dehydration reaction product, and collecting to obtain the epoxyethane. The epoxyethane synthesis method has theadvantages of convenient material transportation, high yield and the like.

Description

technical field [0001] The present invention relates to a synthesis method of epoxy compound and the used production device, especially the synthesis method of ethylene oxide and the used production device. Background technique [0002] Ethylene oxide is an organic compound with the chemical formula C 2 h 4 O, a toxic carcinogen, is a colorless, flammable gas at normal temperature and pressure, and a colorless, flowable liquid at low temperatures. Ethylene oxide can be used as organic chemical raw materials and solvents, mainly used in the manufacture of various other solvents, diluents, non-ionic surfactants, synthetic detergents, antifreeze agents, disinfectants, tougheners and plasticizers, etc. ; It has a bactericidal effect and does not corrode metals, so it can be used as a gas bactericide; when it decomposes, it generates huge energy and can be used as a rocket jet propulsion power. [0003] The existing synthetic methods of ethylene oxide generally include chloroh...

Claims

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Application Information

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IPC IPC(8): C07D301/02C07D303/04B01J23/835B01J23/94B01J8/02
CPCY02P20/52Y02P20/584
Inventor 陈新志骆晨希钱超罗虎
Owner ZHEJIANG UNIV
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