Sucralose continuous acylation reaction device and sucralose continuous acylation reaction method

An acylation reaction, sucralose technology, applied in chemical instruments and methods, esterified saccharides, sugar derivatives, etc., can solve the problems of material drop rate, difficult temperature control, increased by-products, material carbonization, etc. Shorten the production cycle, improve the conversion rate, the effect of sufficient reaction

Pending Publication Date: 2021-03-30
ANHUI JINGHE IND
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

In this new method for continuously producing an aliphatic amine compound with high yields through chemical reactions between different starting substances (a type called fatty acid). By adjustable control over these processes, it becomes more reliable and efficient than traditional methods like batch or semi-batch techniques. Overall, this technique allows for better quality products without generating harmful waste streams during manufacturing.

Problems solved by technology

The technical problem addressed during this patented method for producing sucraloside involves controlling the temperature inside reactors while manually changing the rate or pressure needed when adding acetate hydrate into reactor vessels. This can lead to issues such as over-reacted material formation due to instability caused by too much heat from excessive coolant flow rates that may also result in increased levels of unwanted side products produced through decomposition of sugar molecules.

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
  • Sucralose continuous acylation reaction device and sucralose continuous acylation reaction method
  • Sucralose continuous acylation reaction device and sucralose continuous acylation reaction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Put the esterification solution (10°C) at 3.5m 3 The amount of / L is condensed through the primary condenser and the secondary condenser in turn. The temperature of the primary condenser is controlled at -1°C and the temperature of the secondary condenser is -3°C. The condensed esterification liquid is condensed at 2.5m 3 / L into the primary mixing reactor;

[0021] (2) Add acetic anhydride to 0.3m 3 / L into the first-stage mixing reactor, the temperature of the first-stage mixing reactor is controlled at -3°C, the pressure is 0.17Mpa, and the material from the first-stage mixing reactor is 3.5m 3 / L enters the reaction liquid circulation tank (circulation 7.5min), then passes through the pump at 3.5m 3 / L into the secondary mixing reactor, the temperature of the secondary mixing reactor is controlled at -1.5°C and the pressure is 0.17Mpa;

[0022] (3) The material from the secondary mixing reactor is 3.5m 3 / L into the esterification liquid tank, and t

Embodiment 2

[0024] (1) Put the esterification solution (8°C) at 3.1m 3 The amount of / L is condensed through the primary condenser and the secondary condenser in turn. The temperature of the primary condenser is controlled at -2°C and the temperature of the secondary condenser is -3.8°C. The condensed esterification liquid is 3.1m 3 / L into the primary mixing reactor;

[0025] (2) Add acetic anhydride to 0.25m 3 / L into the first-stage mixing reactor, the temperature of the first-stage mixing reactor is controlled at -3.8°C, the pressure is 0.15Mpa, and the material from the first-stage mixing reactor is 3.1m 3 / L enters the reaction liquid circulation tank (circulation 5min), and then passes through the pump at 3.1m 3 / L into the secondary mixing reactor, the temperature of the secondary mixing reactor is controlled at -2°C and the pressure is 0.15Mpa;

[0026] (3) The material from the secondary mixing reactor is 3.1m 3 / L into the esterification liquid tank, and then sent

Embodiment 3

[0028] (1) Put the esterification solution (12°C) at 4m 3 The amount of / L is condensed through the primary condenser and the secondary condenser in turn. The temperature of the primary condenser is controlled at 0°C and the temperature of the secondary condenser is -2°C. The condensed esterification liquid is condensed at 4m 3 / L into the primary mixing reactor;

[0029] (2) Add acetic anhydride to 0.4 m 3 / L into the first-stage mixing reactor, the temperature of the first-stage mixing reactor is controlled at -2°C, the pressure is 0.2 Mpa, and the material from the first-stage mixing reactor is 4m 3 / L into the reaction liquid circulation tank (circulation 10min), then through the pump at 4m 3 / L into the secondary mixing reactor, the temperature of the secondary mixing reactor is controlled at -1°C and the pressure is 0.2 Mpa;

[0030] (3) The material from the secondary mixing reactor is 4 m 3 / L into the esterification liquid tank, and then sent to extractio

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 relates to a sucralose continuous acylation reaction device and a sucralose continuous acylation reaction method, the method is characterized by comprising the following steps: (1) esterification liquid sequentially passes through a first-stage condenser and a second-stage condenser in an amount of 3-4m<3>/L, is condensed and then is fed into a first-stage mixing reactor, the temperature of the first-stage condenser is controlled to be -2-0 DEG C, and the temperature of the second-stage condenser is -4--2 DEG C; (2) acetic anhydride is pumped into the primary mixing reactor according to the amount of 0.2-0.4 m<3>/L, the temperature of the primary mixing reactor is controlled to be -4--2 DEG C and the pressure to be 0.15-0.2 Mpa, the materials are fed into a secondary mixing reactor according to the amount of 3-4m<3>/L after the mixing reaction, and the temperature of the secondary mixing reactor is controlled to be -2--1 DEG C and the pressure is 0.15-0.2 Mpa; and (3) thematerial discharged from the secondary mixing reactor is pumped into an esterification liquid tank according to an amount of 3-4m<3>/L, wherein the gas phase in the esterification liquid storage tankenters a gas phase header pipe through a pipeline. The method has the beneficial effects that the reaction process can be controlled in real time, the reaction process is stable, and the production period is short; and the content of sucralose 6-ethyl ester is increased from the original 160g/L to 170-175g/L.

Description

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

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
Owner ANHUI JINGHE IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap