A kind of hydrodechlorination catalyst and its application in the preparation of chlorotrifluoroethylene

A technology for chlorotrifluoroethylene and hydrodechlorination, which is applied in the directions of dehalogenation preparation, metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, etc., to simplify the preparation process, reduce the content, and improve the stability sexual effect

Active Publication Date: 2018-12-11
ZHEJIANG LANTIAN ENVIRONMENTAL PROTECTION HI TECH +1
View PDF13 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the problems existing in the hydrodechlorination catalyst in the prior art, provide a kind of hydrodechlorination catalyst and its preparation method, and the catalyst in CFC-113 hydrodechlorination to prepare chlorotrifluoroethylene application

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
  • A kind of hydrodechlorination catalyst and its application in the preparation of chlorotrifluoroethylene
  • A kind of hydrodechlorination catalyst and its application in the preparation of chlorotrifluoroethylene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1 Pd-Cu-Mg / AC catalyst preparation

[0031] Weigh 3.8g Cu(NO 3 ) 2 ·3H 2 O and 1.7g Mg(NO 3 ) 2 ·6H 2 O was added to 6.0ml of palladium source solution (concentration: 0.033gPd / ml), and 80.0ml of distilled water was added to dilute evenly. Take 20g of high-quality activated carbon pretreated with 5% nitric acid, add the above mixed impregnation solution, impregnate for more than 2h, and then dry at 110°C 4h, the Pd-Cu-Mg / AC catalyst was obtained.

Embodiment 2

[0032] Example 2 Preparation of Pd-Cu-Ba / AC catalyst

[0033] Weigh 3.0g Cu(NO 3 ) 2 ·3H 2 O with 0.2g Ba(NO 3 ) 2 , add 6.0ml of palladium source solution (concentration is 0.033gPd / ml), and add 80.0ml of distilled water to dilute evenly, take 20g of high-quality activated carbon pretreated with 5% nitric acid, add the above mixed impregnation solution, impregnate for more than 2h, and then dry at 110°C After 4h, the Pd-Cu-Ba / AC catalyst was obtained.

Embodiment 3

[0034] Example 3 Preparation of Pd-Cu-Sm / AC catalyst

[0035] Weigh 2.3g Cu(NO 3 ) 2 ·3H 2 O and 0.13gSm(NO 3 ) 3 , 4.85ml of palladium source solution (concentration: 0.033g Pd / ml), and add 80.0ml of distilled water to dilute evenly, take 20g of high-quality activated carbon pretreated with 5% nitric acid, add the above mixed impregnation solution, impregnate for more than 2h, and then dry at 110°C 4h, the Pd-Cu-Sm / AC catalyst was obtained.

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 hydrodechlorination catalyst. The hydrodechlorination catalyst consists of main catalysts, an adjuvant and a carrier, wherein the main catalysts are Pd and Cu, the adjuvant is selected from one or a combination of two or three or more of Mg, Ca, Ba, Co, Mo, Ni, Sm and Ce, and the main catalysts and the adjuvant are loaded onto the activated carbon carrier. The hydrodechlorination catalyst provided by the invention is applicable to the preparation of chlorotrifluoroethylene from CFC-113 through catalytic hydrodechlorination and has the advantages of long service life, high chlorotrifluoroethylene selectivity and the like.

Description

technical field [0001] The invention relates to a catalyst, in particular to a hydrodechlorination catalyst and its application in hydrodechlorination reaction. Background technique [0002] Chlorotrifluoroethylene (CTFE) is an important fluorine-containing polymer monomer, which can be used to prepare a series of fluorine coatings, fluorine resins, fluorine rubber, fluorine plastics and fluorine-chlorine lubricants, such as PCTFE, ECTFE, FEVE, etc. These fluorine-containing materials have excellent chemical inertness and weather resistance, and are widely used in cutting-edge technology, military aerospace, and electronics industries. In addition, CTFE is also an important fluorine-containing intermediate, which can be used to prepare downstream products such as trifluoroethylene, bromotrifluoroethylene, hexafluorobutadiene, trifluorostyrene, and fluorobromooil. [0003] The current industrial production of chlorotrifluoroethylene mainly adopts zinc powder reduction dechlo...

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): B01J23/89B01J23/44C07C17/23C07C21/18
Inventor 刘武灿李玲石能富金佳敏马超峰
Owner ZHEJIANG LANTIAN ENVIRONMENTAL PROTECTION HI TECH
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