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

Precious metal carrying hydrogenation catalyst

A technology for hydrogenation catalysts and precious metals, applied in the direction of metal/metal oxide/metal hydroxide catalysts, catalyst carriers, physical/chemical process catalysts, etc., can solve the problems of material pollution, iron loss, etc., and achieve the increase of reaction interface Large, avoid loss, small particle size effect

Active Publication Date: 2004-11-03
CHINA PETROLEUM & CHEM CORP +1
View PDF7 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since iron is directly exposed on the surface of the catalyst, it may have adverse effects on some reactions, may also pollute some materials, and may also cause iron loss

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
  • Precious metal carrying hydrogenation catalyst
  • Precious metal carrying hydrogenation catalyst
  • Precious metal carrying hydrogenation catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 189g Na 2 SiO 3 9H 2 O (Zhejiang Wenzhou Dongsheng Chemical Reagent Factory) was dissolved in 800 mL of distilled water, and 3 mol / L HCl solution was slowly added dropwise under stirring condition, the pH value of the solution was adjusted to 13, and it was filtered for later use.

[0048] Add 23.4 g of FeCl to a 2 L stirred reactor filled with 1000 mL of distilled water 3 ·6H 2 O (Beijing Chaoyang Tonghui Chemical Plant) and 8.6g FeCl 2 4H 2 O (Beijing Shuanghuan Chemical Reagent Factory), under the protection of nitrogen, the temperature was raised to 85-90 °C, and 30 mL of 25% NH was added during high-speed stirring. 3 ·H 2 O solution, after stirring at high speed for 3min, use a magnetic separator to separate Fe 3 o 4 Nanoparticle products. Ultrasonic dispersion of the cleaned deposition product in the above pretreated Na 2 SiO 3 solution, and then moved into a 2-liter stirred reactor, heated to 85°C, and under nitrogen protection and stirring conditions,...

Embodiment 2

[0056] 28.4g Na 2 SiO 3 9H 2 O (Zhejiang Wenzhou Dongsheng Chemical Reagent Factory) was dissolved in 600 mL of distilled water, and 3 mol / L HCl solution was slowly added dropwise under agitation to adjust the pH value of the solution to 13, and filtered for later use.

[0057] Add 46.7 g of FeCl to a 2 L stirred reactor filled with 1000 mL of distilled water 3 ·6H 2 O (Beijing Chaoyang Tonghui Chemical Plant) and 17.2g FeCl 2 4H 2 O (Beijing Shuanghuan Chemical Reagent Factory), under the protection of nitrogen, heat up to 85-90 °C, add 160mL of 6Mol / L NaOH solution during high-speed stirring, and after high-speed stirring for 3min, use a magnetic separator to separate Fe 3 o 4 Nanoparticle products. Ultrasonic dispersion of the cleaned deposition product in the above pretreated Na 2 SiO 3 solution, and then moved into a 2-liter stirred reactor, raised the temperature to 85°C, and slowly added HCl solution with a concentration of about 1.5mol / L dropwise to the soluti...

Embodiment 3

[0063] The above-mentioned AL1 magnetic spherical Al(OH) 3 The product was put into a 1L autoclave containing 0.7L sulfonated kerosene medium, and subjected to hydrothermal treatment at 140°C for 3 hours under the protection of nitrogen. After aging for 6 hours (removing some of the impurities) and drying at 60°C, a magnetic spherical Al(OH) with a boehmite structure (α-AlOOH) can be obtained 3 product, the product is sintered at 580 ° C for 2 hours in an air atmosphere, and about 60 g of γ-Fe-containing 2 o 3 Spherical γ-Al with Magnetic Core 2 o 3 carrier. The content ratio (weight ratio) of each component in the carrier material is: γ-Fe 2 o 3 : SiO 2 :Al 2 o 3 =30:9:61 (in addition, the carrier also contains part of water). This carrier has superparamagnetic characteristics.

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

PropertyMeasurementUnit
Average particle sizeaaaaaaaaaa
The average particle sizeaaaaaaaaaa
The average particle sizeaaaaaaaaaa
Login to View More

Abstract

The supported hydrogenating noble metal carrier consists of mainly spherical carrier material and noble metal as active component, and features that the spherical carrier material contains alumina in 50-99 wt% and magnetic grain in 1-50 wt%. The magnetic grain consists of SiO2 coating layer and kernel of Fe3O4, Fe and / or gamm-Fe2O3 in the weight ratio of 0.05-6 to 1. The noble metal as active component is one or several selected from Pt, Pd, Ru and Rh.

Description

technical field [0001] The present invention relates to a catalyst, more particularly to a hydrogenation catalyst loaded with precious metals. Background technique [0002] In the hydrogenation reaction process of petrochemical, fine chemical, pharmaceutical and other fields, supported palladium catalyst is a commonly used hydrogenation catalyst, and the carrier used is generally alumina, silica, activated carbon, etc. There are many reports on alumina and its preparation methods. For example, the spherical alumina carrier disclosed in US. Pat. 2,620,314 is formed by dropping a solution containing aluminum hydroxide sol and organic amine into a hot oil column through plate holes for solidification, aging and sintering. γ-Al disclosed in US.Pat.4,273,735 2 o 3 The carrier is made by hydrothermally treating the solidified aluminum hydroxide obtained in the oil column in the oil medium to obtain aluminum hydroxide with a boehmite structure, which is aged and sintered. US.Pa...

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): B01J23/40B01J32/00B01J35/08C07C5/02
Inventor 孟祥堃卢立军王宣吴佳慕旭宏宗保宁闵恩泽
Owner CHINA PETROLEUM & CHEM CORP
Features
  • Generate Ideas
  • 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