Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Magnetic stabilization reaction device and method for preparing hexamethylenediamine by using same

A reaction device and magnetic stabilization technology, applied in the preparation of organic compounds, the chemical/physical/physical chemical process of applying energy, the preparation of amino compounds, etc. , the catalyst is easily brought out, etc., to improve the reaction selectivity and reaction efficiency, the reaction efficiency and selectivity are high, and the effect of avoiding catalyst loss

Pending Publication Date: 2021-09-17
JIANGSU YANGNONG CHEM GROUP
View PDF10 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the problems existing in the prior art, the present invention provides a magnetically stable reaction device and a method for preparing hexamethylenediamine using it. The magnetically stable reaction device can overcome the severe axial mixing of the fluidized bed, the low conversion rate, and the It is easy to carry out, difficult to separate the product from the catalyst, and the gas-liquid phase diffusion resistance of the fixed bed is large, the radial heat transfer efficiency is low, channeling is easy to occur, and the bed pressure drop is high. The shortcomings can be better applied to 6-aminohexyl In the reaction of direct hydrogenation of nitrile to prepare hexamethylenediamine

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Magnetic stabilization reaction device and method for preparing hexamethylenediamine by using same
  • Magnetic stabilization reaction device and method for preparing hexamethylenediamine by using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] This embodiment provides a magnetically stable reaction device, the magnetically stable reaction device such as figure 1 As shown, specifically, the magnetically stable reaction device includes a first heating device 1 and a second tubular reactor 2 connected in sequence; the second tubular reactor 2 is provided with 4 Hex The Helmholtz coils 9; the Helmholtz coils 9 are independently connected to the transformer.

[0060] Each of the Helmholtz coils 9 has 500 turns.

[0061] A heating component 3 is arranged outside the first heating device 1 . Quartz filler is arranged in the first heating device 1 . The first heating device 1 is a tubular reactor with a length of 500 mm, an inner diameter of 5 mm, and a stainless steel tube. The bottom and / or lower side of the first heating device 1 is provided with a first inlet 4 , and the top is provided with a first outlet 5 .

[0062] The length of the second tubular reactor 2 is 500 mm, the inner diameter is 5 mm, and the m...

Embodiment 2

[0064] This embodiment provides a magnetically stable reaction device, which includes a first heating device and a second tubular reactor connected in sequence; the second tubular reactor is provided with 8 axially arranged Helmholtz coils; each of the Helmholtz coils is independently connected to the transformer.

[0065] Each of the Helmholtz coils has 100 turns.

[0066] A heating component is arranged outside the first heating device. A glass filler is arranged in the first heating device. The first heating device is a tubular reactor with a length of 1000 mm, an inner diameter of 20 mm, and a stainless steel tube. The bottom and / or lower side of the first heating device is provided with a first inlet, and the top is provided with a first outlet.

[0067] The length of the second tubular reactor is 1000 mm, the inner diameter is 20 mm, and the material is stainless steel tube. A second inlet is provided at the bottom and / or lower side of the second tubular reactor. Th...

Embodiment 3

[0069] This embodiment provides a magnetically stable reaction device, which includes a first heating device and a second tubular reactor connected in sequence; the second tubular reactor is provided with 6 axially arranged Helmholtz coils; each of the Helmholtz coils is independently connected to the transformer.

[0070] Each of the Helmholtz coils has 200 turns.

[0071] A heating component is arranged outside the first heating device. Ceramic ball fillers are arranged in the first heating device. The first heating device is a tubular reactor with a length of 800 mm, an inner diameter of 10 mm, and a stainless steel tube. The bottom and / or lower side of the first heating device is provided with a first inlet, and the top is provided with a first outlet.

[0072] The length of the second tubular reactor is 800 mm, the inner diameter is 10 mm, and the material is stainless steel tube. A second inlet is provided at the bottom and / or lower side of the second tubular reactor...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
The inside diameter ofaaaaaaaaaa
The inside diameter ofaaaaaaaaaa
The inside diameter ofaaaaaaaaaa
Login to View More

Abstract

The invention provides a magnetic stabilization reaction device and method for preparing hexamethylenediamine by using the same. The magnetic stabilization reaction device comprises a first heating device and a second tubular reactor which are connected in sequence, at least two Helmholtz coils which are axially arranged are arranged outside the second tubular reactor; and a magnetically stabilized bed has the advantages of small axial mixed flow, easy separation of the catalyst and reduced bed pressure, can be well applied to a reaction for preparing hexamethylenediamine through direct hydrogenation of 6-aminocapronitrile, and improves reaction selectivity and reaction efficiency.

Description

technical field [0001] The invention relates to the technical field of organic chemical industry, in particular to a magnetically stable reaction device and a method for preparing hexamethylenediamine using the same. Background technique [0002] Hexamethylenediamine is widely used, mainly used in the production of nylon 66, and also has a large number of applications and developments in foam plastics, coatings, epoxy resin curing agents, organic crosslinking agents, pesticides, iron ore and copper ore flotation agents, etc. , so hexamethylenediamine is a very important organic raw material in the field of chemical production. [0003] Caprolactam ammonification method is a method for generating hexamethylenediamine. CN111574400A discloses the method that caprolactam and ammonia react under the action of a catalyst to generate the key intermediate 6-aminocapronitrile, and then the formed 6-aminocapronitrile is passed through rectification High-purity 6-aminocapronitrile is ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01J19/08B01J8/06C07C209/48C07C211/12
CPCB01J19/087B01J8/06B01J8/067C07C209/48C07C211/12
Inventor 王根林王刚汪洋丁克鸿徐林许越张曦郭玉秀陆仁标殷剑虎王敏娟
Owner JIANGSU YANGNONG CHEM GROUP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com