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

Dichloropropanol synthesis and separation process

A dichloropropanol and process technology, applied in the field of dichloropropanol, can solve problems such as increased separation difficulty, pipeline blockage, catalyst loss, etc., and achieve the effects of improving conversion rate, reducing circulating water and steam consumption, and reducing content

Active Publication Date: 2021-03-12
CHINA TIANCHEN ENG
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention aims to propose a kind of dichloropropanol synthesis and separation process, to solve the side reaction of catalyst and glycerol and chloropropanol at high temperature in the existing two-tower process, to generate glycerol dimer, carboxylic acid Glycerides and other high-boiling by-products cause problems such as pipeline blockage, catalyst loss, and increased separation difficulty

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
  • Dichloropropanol synthesis and separation process
  • Dichloropropanol synthesis and separation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Unless otherwise defined, the technical terms used in the following embodiments have the same meaning as commonly understood by those skilled in the art to which the present invention belongs. The test reagents used in the following examples, unless otherwise specified, are conventional biochemical reagents; the experimental methods, unless otherwise specified, are conventional methods.

[0033] The present invention will be described in detail below in conjunction with the embodiments and accompanying drawings.

[0034] like figure 2Shown, a kind of dichloropropanol synthesis and separation process, comprise reactor unit and rectification purification unit, reactor unit comprises glycerin preheater E-03, chlorination reactor R-01, hydrogen chloride falling film absorption unit, The rectification and purification unit includes light removal tower T-01, dehydration tower T-02, and weight removal tower T-03.

[0035] The glycerin preheater E-03 adopts a plate heat exch...

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 dichloropropanol synthesis and separation process, which comprises a reactor unit and a rectification purification unit, wherein the reactor unit comprises a glycerol preheater, a chlorination reactor and a hydrogen chloride falling film absorption unit, and the rectification purification unit comprises a light component removal tower, a dehydration tower and a heavy component removal tower. Through reasonable design and effective energy utilization, the process has the advantages of high hydrogen chloride conversion rate, good product selectivity, high dichloropropanol purity, low catalyst consumption, low reaction temperature, low public engineering consumption and the like.

Description

technical field [0001] The invention belongs to the field of dichloropropanol, in particular to a process for synthesizing and separating dichloropropanol. Background technique [0002] Dichloropropanol, also known as dichloroglycerin, is a chemical reagent, a colorless liquid, with two structural isopropanols, 1,3-dichloro-2-propanol and 2,3-dichloro-1-propanol. Constructs, all can undergo saponification reaction with lime water or sodium hydroxide and other lye, remove a part of hydrogen chloride, and cyclize to generate epichlorohydrin. Insoluble in water, soluble in most organic solvents such as ethanol and ether. In case of high heat, open flame or contact with oxidants, there is a danger of burning. [0003] Dichloropropanol is a synthetic antiviral drug "ganciclovir" (used to treat organ transplant virus infection, AIDS, etc.), 1,3-dichloroacetone (famotidine, high-efficiency and low-toxicity deep antifungal drug flucon Raw materials for azoles), cross-linking agen...

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 Applications(China)
IPC IPC(8): C07C29/62C07C29/76C07C31/36
CPCC07C29/62C07C29/76C07C31/36
Inventor 靳权柴永峰李坤顾峥闫伟裴艳红吴凡王敬伟张猛刘增坤王振华
Owner CHINA TIANCHEN ENG
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