Check patentability & draft patents in minutes with Patsnap Eureka AI!

High-stability dechlorination catalyst, preparation method and dechlorination process

A high-stability catalyst technology, applied in dechlorination process, high-stability dechlorination catalyst, preparation field, can solve the problems of low selectivity, low conversion rate and poor stability of the target product, and achieve easy industrial scale-up production and transformation The effect of high efficiency and high stability

Pending Publication Date: 2021-03-30
SINOCHEM LANTIAN +2
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The dechlorination reaction is usually a strong exothermic reaction. The dechlorination catalysts in the prior art have problems such as easy deactivation, poor stability, low conversion rate, and low selectivity of target products, which still need to be improved.

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
  • High-stability dechlorination catalyst, preparation method and dechlorination process
  • High-stability dechlorination catalyst, preparation method and dechlorination process
  • High-stability dechlorination catalyst, preparation method and dechlorination process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-12

[0058] Embodiment 1-12: the preparation of dechlorination catalyst

[0059] Immerse 10 g of activated carbon in the first metal salt solution, mix it uniformly by ultrasonic at a certain temperature, then dry and roast, drop 5 drops of hydrogen peroxide with a mass fraction of 20% after cooling down to room temperature, and carry out liquid phase oxidation. Submerge the liquid-phase oxidized sample in 100 ml of aqueous solution, place it in a microwave reactor, and heat it at the first microwave power for a certain period of time, then drip the second metal precursor at the second microwave power. After the dropwise addition, continue heating with the second microwave power. Then, the reactant is filtered and dried to obtain the dechlorination catalyst.

[0060] The catalyst preparation parameters are shown in Table 1.

[0061] Table 1 embodiment 1-12 catalyst preparation parameters

[0062]

[0063]

[0064]

Embodiment 13

[0065] Embodiment 13: dechlorination process

[0066] The dechlorination catalysts of Examples 1-12 were loaded into a fixed-bed reactor with an inner diameter of 10 mm. The reaction products were analyzed by gas chromatography. The reaction conditions and properties are shown in Table 2.

[0067] The catalytic performance of table 2 embodiment 1-12

[0068]

[0069]

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 high-stability dechlorination catalyst, a preparation method and a dechlorination process, the catalyst comprises a carbon carrier, a first metal layer on the surface of thecarbon carrier, and a second metal layer anchored and combined with the first metal layer, the first metal in the first metal layer is selected from one or more of IB, IIB, IVB, VIB and VIIB group metals; and the second metal in the second metal layer is selected from one or more of VIII group metal, and the second metal is anchored and combined with the first metal in the microwave reactor. Thedechlorination catalyst has the advantages of high stability, high conversion rate, high selectivity and the like, the preparation method of the high-stability dechlorination catalyst is easy for industrial scale-up production, the dechlorination process is safe and environment-friendly, and the productivity is high.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a highly stable dechlorination catalyst, a preparation method and a dechlorination process. Background technique [0002] Dechlorination is an important method to avoid environmental pollution caused by chlorine-containing compounds, produce valuable products, and realize resource utilization. [0003] CN110961110A discloses a method for preparing 2,3-dichloropyridine by hydrodechlorination of 2,3,6-trichloropyridine, the catalyst has the following general formula: αM-βN / Z, wherein M is selected from Ni, Pd , Ir, Rh, Pt, or a metal element of a mixture of two or more thereof, N is a metal selected from Cu, Co, Fe, or a mixture of two or three thereof, and Z is a metal element selected from MgO, TiO 2 , activated carbon, diatomaceous earth, ZSM-5 molecular sieve or two or more carriers thereof; the method has the characteristics of low catalyst addition, mild reaction...

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
IPC IPC(8): B01J23/46B01J23/60B01J23/652B01J23/656B01J23/755B01J23/883B01J23/889B01J23/89B01J37/02B01J37/08B01J37/34C07C1/26C07C1/04C07C17/23C07C21/18C07C21/185
CPCB01J23/6562B01J23/8926B01J23/8906B01J23/8913B01J23/755B01J23/6522B01J23/8896B01J23/883B01J23/60B01J23/468B01J37/0244B01J37/08B01J37/346B01J37/343C07C1/26C07C17/23C07C11/04C07C21/18C07C21/185
Inventor 李小年刘武灿石能富马超峰李玲
Owner SINOCHEM LANTIAN
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com