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

Method for achromatizing 3 - allyl chloride

A technology for chloropropene and ferrous metals, applied in chemical instruments and methods, organic chemistry, disproportionation separation/purification of halogenated hydrocarbons, etc., can solve high equipment investment, reduce product quality indicators, affect the purity of 3-chloropropene products, etc. problems, to achieve the effect of stable physical properties and reduce color

Inactive Publication Date: 2007-12-26
BALING PETRO CHEM CO LTD SINOPEC
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] It is known through literature retrieval that at present, there are few reports on the research literature on the colorless aspect of 3-chloropropene, and the patent application number ZL00126643. Washing 3-chloropropene products with a certain amount of water has a certain effect on preventing the discoloration of 3-chloropropene products, but the water content of 3-chloropropene products increases after washing, which reduces the product quality indicators. Patent application number ZL01114409.2 proposes " A method for inhibiting and eliminating the discoloration of 3-chloropropene", which is characterized in that an excessive amount of weakly basic carbonate is directly added to 3-chloropropene, and the method is used to treat 3-chloropropene products, which can prevent the discoloration of 3-chloropropene , but after adding carbonate, the product purity of 3-chloropropene is affected. If 3-chloropropene and carbonate are separated, there will be difficulties in the subsequent process treatment, and the realization of industrialization will increase the relatively high equipment investment. Specifically It is difficult to operate

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: Fill 1.3m in a fixed bed of 800*3000 3 Solid alkali granules (sodium hydroxide granules are used for solid alkali granules), 3-chloropropene with 4m 3 The flow rate of / h is passed into the fixed bed, and samples are taken and analyzed at the inlet and outlet of the fixed bed. The color of 3-chloropropene at the inlet is brown. After the fixed bed treatment, the color of 3-chloropropene is reduced to 20#, and the appearance is colorless and transparent.

Embodiment 2

[0017] Example 2: Filling 1.3M in a fixed bed of 800*3000 3 Solid alkali granules (sodium hydroxide granules are used for solid alkali granules), 3-chloropropene in 5M 3 The flow rate of / h is passed into the fixed bed, and sampling analysis is carried out at the inlet and outlet of the fixed bed respectively. The color and luster of 3-chloropropene at the inlet is 40#, and the free acid is 0.0062%, F e 3+ The content is 0.72ppm, after fixed bed treatment, the color of 3-chloropropene is reduced to 15#, and the free acid is reduced to 0.0012%, F e 3+ The content was reduced to 0.004ppm, and the product remained colorless and transparent after being stored for 4 months.

Embodiment 3

[0018] Example 3: Fill 1.3m in a fixed bed of 800*3000 3 Solid alkali particles (solid alkali particles are selected from quicklime particles), 3-chloropropene is 4m 3 The flow rate of / h is passed into the fixed bed, and samples are taken and analyzed at the inlet and outlet of the fixed bed. The color of 3-chloropropene at the inlet is brown. After the fixed bed treatment, the color of 3-chloropropene is reduced to 15#, and the appearance is colorless and transparent.

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

This invention discloses a method for decolorizing 3-chloropropene. The method comprises: passing 3-chloropropene through a fixed bed filled with solid alkali particles inside, performing solid-liquid phase chemical reaction on color Fe3+, Fe2+, Cu2+ and Cr2+ in 3-chloropropene on the surface of the solid alkali to form precipitates or colloids, adsorbing and filtering the precipitates or colloids by the solid alkali particles, performing neutralization reaction between free acids in 3-chloropropene and the solid alkali, and adsorbing free water in 3-chloropropene by the solid alkali. The method has such advantages as easy operation and good effect, and can be widely used in industrial production of 3-chloropropene.

Description

technical field [0001] The invention relates to a method for decolorizing 3-chloropropene Background technique [0002] It is known through literature retrieval that at present, there are few reports on the research literature on the colorless aspect of 3-chloropropene, and the patent application number ZL00126643. Washing 3-chloropropene products with a certain amount of water has a certain effect on preventing the discoloration of 3-chloropropene products, but the water content of 3-chloropropene products increases after washing, which reduces the product quality indicators. Patent application number ZL01114409.2 proposes " A method for inhibiting and eliminating the discoloration of 3-chloropropene", which is characterized in that an excessive amount of weakly basic carbonate is directly added to 3-chloropropene, and the method is used to treat 3-chloropropene products, which can prevent the discoloration of 3-chloropropene , but after adding carbonate, the product purit...

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): C07C21/067C07C17/38C07C17/389
Inventor 李晓毅张晖陈建湘
Owner BALING PETRO CHEM CO LTD SINOPEC
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