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

Chloropropanediol purifying apparatus and production method thereof

The technology of a chloroglycerol and a production method, which is applied in the chemical industry, can solve the problems of low conversion rate of raw materials, low product yield, poor economic benefit and the like, and achieves the effects of strong catalytic activity, increased contact area, and reduced by-products

Active Publication Date: 2013-10-23
WEIFANG WORLD CHEM
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is aimed at problems such as low product purity, high impurity content, low raw material conversion rate, low product yield, poor economic benefit, increased yield and increased cost in the production of domestic chlorinated glycerin industry, Provide a chlorinated glycerol purification device capable of improving product purity, reducing the amount and content of impurities, reducing the amount of waste residue generated in production, reducing product cost, improving product economic benefits, shortening production cycle, and improving equipment utilization

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
  • Chloropropanediol purifying apparatus and production method thereof
  • Chloropropanediol purifying apparatus and production method thereof
  • Chloropropanediol purifying apparatus and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1, such as figure 1 As shown, a chlorinated glycerol purification device comprises a hydrolysis kettle 3, a hydrolyzate head tank 5, an ion exchange column 6, a distillation kettle 7, and a condenser 8 connected through pipelines successively. On the output pipeline of the condenser 8, A front fraction tank 10 and a finished product tank 9 are connected, and the front fraction tank 10 and the finished product tank 9 are respectively connected with a vacuum unit.

[0038] A circulation pipeline is installed between the lower end and the upper end of the hydrolysis kettle 3, and a circulation pump 4 is installed on the circulation pipeline.

[0039] A glass condenser 2 is connected to the circulation pipeline; the liquid inlet pipe of the hydrolyzate head tank 5 communicates with the circulation pipeline.

[0040] The top of the hydrolysis kettle 3 is communicated with an elevated tank 1, and the elevated tank 1 is connected with a hydraulic jet vacuum pump throu...

Embodiment 2

[0059] Example 2, such as figure 1 As shown, a chlorinated glycerin purification device comprises a hydrolysis kettle 3, a hydrolyzate head tank 5, an ion exchange column 6, a distillation kettle 7, and a condenser 8 connected successively through pipelines. On the output pipeline of the condenser 8, A front fraction tank 10 and a finished product tank 9 are connected, and the front fraction tank 10 and the finished product tank 9 are respectively connected with a vacuum unit.

[0060] A circulation pipeline is installed between the lower end and the upper end of the hydrolysis kettle 3, and a circulation pump 4 is installed on the circulation pipeline.

[0061] A glass condenser 2 is connected to the circulation pipeline; the liquid inlet pipe of the hydrolyzate head tank 5 communicates with the circulation pipeline.

[0062] The top of the hydrolysis kettle 3 is communicated with an elevated tank 1, and the elevated tank 1 is connected with a hydraulic jet vacuum pump throu...

Embodiment 3

[0077] Example 3, such as figure 1 As shown, a chlorinated glycerin purification device comprises a hydrolysis kettle 3, a hydrolyzate head tank 5, an ion exchange column 6, a distillation kettle 7, and a condenser 8 connected successively through pipelines. On the output pipeline of the condenser 8, A front fraction tank 10 and a finished product tank 9 are connected, and the front fraction tank 10 and the finished product tank 9 are respectively connected with a vacuum unit.

[0078] A circulation pipeline is installed between the lower end and the upper end of the hydrolysis kettle 3, and a circulation pump 4 is installed on the circulation pipeline.

[0079] A glass condenser 2 is connected to the circulation pipeline; the liquid inlet pipe of the hydrolyzate head tank 5 communicates with the circulation pipeline.

[0080] The top of the hydrolysis kettle 3 is communicated with an elevated tank 1, and the elevated tank 1 is connected with a hydraulic jet vacuum pump throu...

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 discloses a chloropropanediol purifying apparatus and a production method thereof. The apparatus comprises a hydrolysis kettle, a hydrolysate header tank, ion exchange columns, a distillation still and a condenser which are connected through a pipeline, the output pipeline of the condenser is connected with a front fraction pot and a finished product pot, and the front fraction pot and the finished product pot are respectively connected with a vacuum set. The production method comprises the following steps: respectively pumping softened water, sulfuric acid and an aqueous solution of p-toluenesulfonic acid into the hydrolysis kettle according to a ratio, stirring, heating, adding chloropropylene oxide to the hydrolysis kettle for a reaction, and continuously heating for a new reaction after reaction ending; putting the obtained hydrolysate in the ion exchange columns for ion exchange; adding the obtained ion exchange liquid to the distillation kettle, starting stirring, carrying out steam heating, and starting a hydraulic jet vacuum pump; stopping the hydraulic jet vacuum pump when there is no liquid drop between the condenser and a reception pot, and sequentially starting roots vacuum sets; and conveying the obtained material to the front fraction pot, and switching the front fraction pot to the finished product pot.

Description

technical field [0001] The invention relates to a production method of chlorinated glycerol, in particular to a chlorinated glycerin purification device and a production method thereof, belonging to the technical field of chemical industry. Background technique [0002] Chloroglycerol (chemical name 3-chloro-1,2-propanediol) contains -Cl group and two hydroxyl groups in its molecule, and its structural characteristics determine that it is a valuable chemical intermediate. As a pharmaceutical intermediate, it is used in the production of guaiacol glyceryl ether for expectorant and cough medicine, theophylline and prohydroxyphylline for anti-asthma, and the production of non-ionic contrast agents such as iohexol and ioversol; as basic raw materials, Production of plasticizers, surfactants, dyes, etc.; together with bis-(p-hydroxyphenyl)-trichloroethane to synthesize self-extinguishing epoxy resin; also used as a solvent for the production of cellulose acetate, etc. In re...

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): C07C31/42C07C29/10C07C29/76
Inventor 郭学阳张志刚王欣鹏刘见齐楚希玲李绍彦李绍禹左言恺
Owner WEIFANG WORLD CHEM
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