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

Continuous production system of azo reactive dyes using supergravity

A reactive dye, supergravity technology, applied in reactive dyes, azo dyes, chemical/physics/physicochemical processes of applying energy, etc., can solve the problem that the temperature and mixing effect are difficult to achieve uniformity, the application of post-processing dyes is inconvenient, and the production of dyes Inefficiency and other problems, to achieve the effect of helping to homogenize the reaction, speed up the flow and mixing, and avoid decomposition

Active Publication Date: 2020-10-20
BEIJING UNIV OF CHEM TECH +1
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complexity of the organic reaction and the large volume of the stirred tank reactor, the temperature and mixing effect of the material are difficult to achieve uniformity in local areas, the production efficiency of the dye is low, and the batches of dyes produced by the batch stirred tank are quite different. , the post-processing of the dye and the application of the dye have brought inconvenience

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
  • Continuous production system of azo reactive dyes using supergravity
  • Continuous production system of azo reactive dyes using supergravity
  • Continuous production system of azo reactive dyes using supergravity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0041] In view of this, the present invention firstly provides a continuous production system of azo reactive dyes using supergravity, said system comprising: a condensation reaction unit, said condensation reaction unit comprising a condensation reaction tank for generating coupling components; The diazotization reaction unit, the diazotization reaction unit includes: a premixing component, which premixes the diazo component and the diazo reagent, and a spiral coil reactor, which communicates with the premixing component, ...

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

No PUM Login to View More

Abstract

The invention provides a continuous production system for azo reactive dyes using supergravity, combining the spiral coil reactor with the supergravity technology, and treating the diazotization reaction and the coupling reaction differently, and the diazotization reaction is carried out in the spiral coil reactor The high gravity reactor used for coupling reaction can greatly improve the conversion rate and the quality of the product. The spiral coil reactor can precisely control the temperature and avoid the decomposition of the diazonium salt. With this combination, due to the precise temperature control, the decomposition of the diazonium salt is very small, which will not affect the subsequent coupling reaction, so it can ensure continuous production. The concentration of the diazonium salt is maintained in a relatively high range, so as to ensure that the performance of the same batch of azo reactive dyes is close to or the same, and meets the actual needs of the industry. Further, a disturbing member is provided in the spiral coil, which can disturb the reaction solution in the spiral coil reactor, speed up the flow and mixing of the reaction solution, and facilitate the homogeneous reaction.

Description

technical field [0001] The invention relates to the technical field of preparation of azo reactive dyes. More specifically, it relates to a continuous production system of azo reactive dyes using supergravity. Background technique [0002] Industrially, the production of reactive azo dyes is carried out in batch operation in stirred tank reactors. Due to the complexity of the organic reaction and the large volume of the stirred tank reactor, the temperature and mixing effect of the material are difficult to achieve uniformity in local areas, the production efficiency of the dye is low, and the batches of dyes produced by the batch stirred tank are quite different. , the post-processing of the dye and the application of the dye have all brought inconvenience. [0003] Therefore, there is an urgent need to provide a continuous production system for azo reactive dyes using supergravity. Contents of the invention [0004] In view of this, in order to solve the current lack ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/24B01J19/18B01J19/00B01J19/10B01F13/10C09B62/51
CPCB01J19/243B01J19/10B01J19/18B01J19/00B01J19/0013C09B62/51B01F33/82
Inventor 邹海魁肖振根陈建峰初广文孙宝昌罗勇张亮亮
Owner BEIJING UNIV OF CHEM TECH
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