Reactor for preparing isophorone nitrile and method for continuously preparing isophorone nitrile by adopting reactor

A technology of isophorone nitrile and reactor is applied in the field of continuous preparation of isophorone nitrile, which can solve the problems of low product yield, poor mass transfer and heat transfer effect, etc., achieve good mass transfer performance and expand production scale , the effect of increasing energy consumption

Active Publication Date: 2013-09-18
WANHUA CHEM GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the defects existing in the current isophorone nitrile preparation process, the object of the invention is to provide a kind of reactor for preparing isophorone nitrile, improve the poor mass transfer and heat transfer effect of ordinary continuous reactor, and the product yield is low shortcoming

Method used

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  • Reactor for preparing isophorone nitrile and method for continuously preparing isophorone nitrile by adopting reactor
  • Reactor for preparing isophorone nitrile and method for continuously preparing isophorone nitrile by adopting reactor
  • Reactor for preparing isophorone nitrile and method for continuously preparing isophorone nitrile by adopting reactor

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Embodiment 1

[0048] The reactor structure is as figure 2 As shown, the reactor includes a shell 1, an inlet head 2, an outlet head 6, a reaction channel 5, a shell side inlet 7, a shell side outlet 4 and a connecting plate 3, wherein 100 reaction channels 5 are arranged in parallel, and each reaction channel 5 is fixed On the connecting plate 3, and between the connecting plate 3 and the housing 1 are fixedly connected, the connecting plate 3 is installed at the inlet of the reactor and at the outlet of the reactor, between the two connecting plates 3, the outer wall of the housing 1 and the reaction channel 5 Together, they constitute the flow space of the heat exchange medium, that is, the heat exchange area. The inlet head 2 of the reactor is formed between the connection plate at the inlet and the shell at the entrance, and the connection plate at the exit and the shell at the exit. The outlet head 6 of the reactor is then constituted; the inlet head 2 is in fluid communication with t...

Embodiment 2

[0053] Reactor structure is the same as embodiment 1, and difference is that reaction channel 5 quantity is 1, and length is 1 meter, as Figure 5 As shown, the reaction channel 5 is in the form of a continuous semicircle, and the cross-sectional form is a square. The hydraulic diameter of the reaction channel 5 is 5 mm, and the specific surface area is 1000 m 2 / m 3 ,like Figure 6 As shown, a spherical mixing element 8 and a concave semicircular arc mixing element 9 are installed in the reaction channel 5, and three first holes 11 are opened on the spherical mixing element 8, and the first holes 11 are evenly distributed in the spherical mixing element 8 in the incoming material direction. on the hemisphere, and fan-shaped distribution inside the hemisphere, and finally gather in a linear second channel 12 with a diameter of 80 microns at the center of the sphere. The opening ratio of the spherical mixing element 8 is 30%, of which the first The aperture of the channel 11 ...

Embodiment 3

[0057] Reactor structure is the same as embodiment 1, and difference is that reaction channel 5 quantity is 20, and length is 50 meters, as Figure 7 As shown, the reaction channel 5 is in the form of a bow, and the cross-sectional form is elliptical. The hydraulic diameter of the reaction channel 5 is 500 microns, and the specific surface area is 6000m 2 / m 3 ,like Figure 8As shown, a spherical mixing element 8, a concave semicircular arc mixing element 9 and a deflector 13 are installed in the reaction channel 5, and 30 first channels 11 are opened on the spherical mixing element 8, and the first channels 11 are distributed before the incoming material. The contacted hemispheres are integrally formed in an umbrella shape inside the hemisphere, and finally gather in a linear second channel 12 with a diameter of 50 microns at the center of the sphere. The opening ratio of the spherical mixing element 8 is 60%, of which the first The diameter of the holes 11 is 5 microns, an...

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Abstract

The invention provides a reactor for preparing isophorone nitrile and a method for continuously preparing the isophorone nitrile by adopting the reactor. A plurality of millimeter to micron-sized narrow regular reaction channels which are arranged in parallel are arranged in the reactor, and inner members are arranged in the reaction channels, so that the reactor has good heat and mass transfer effects, and the dwell time can be accurately controlled, thereby obtaining a high reaction conversion rate and a high product yield. Compared with a traditional batch reactor or a common continuous tubular reactor, the method has obvious advantages on many aspects of improvement in the reaction effect in preparation of the isophorone nitrile, safety in production, energy conservation, consumption reduction and the like.

Description

Technical field [0001] The present invention involves a reactor to prepare vosterone and adopts the method of continuous preparation of alien ketone. Background technique [0002] The 3-cyanobylene-3, 5,5-triangular cycle ketone, commonly known as albiane (IPN), is an important industrial intermediary. It can be converted into ammonia and can be converted into two vasone two.Amine (IPDA).IPDA can be used for curing agents and cross -linked agents of epoxy resin coatings; in the polyurethane industry, it can also be used to prepare vosterone diocyanate (IPDI). IPDI is used as an cross -hypertrophic production, coupled, hydroxyl stabilizer andSpecial single use. [0003] Actosterone is generally obtained by bonus reactions under alkaline catalysts through albumidone (IP) and hydrocyanic acid.Show. [0004] [0005] Depending on the reaction mode, it is divided into two types: intermittent reaction and continuous response.The most current reports are intermittent reaction mode, su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/24C07C255/46C07C253/10
Inventor 朱发明谢增勇丛鑫王爱发董岩峰信勇黎源赵文娟薛莹姜庆梅宋锦宏宗丽艳李和甫华卫琦
Owner WANHUA CHEM GRP CO LTD
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