A kind of preparation method of eggshell type deoxidation catalyst
A deoxygenation catalyst, eggshell-type technology, applied in catalyst activation/preparation, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of low utilization rate of catalyst active components, catalyst carrier roasting The problems of high temperature and low catalytic efficiency of catalyst can achieve the effect of improving strength, improving catalytic activity and improving utilization rate.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0032] The preparation method of the eggshell type deoxidation catalyst provided in this embodiment comprises the following steps:
[0033] (1) Preparation of shell composite carrier
[0034] Impregnation of α-Al with glue solution 2 o 3 α-Al 2 o 3 A rubber layer is formed on the outside of the spherical carrier, and 220-mesh TiO 2 The powder is evenly coated on the adhesive layer, then dried at 80°C for 2.5 hours, and then fired at 400°C for 3 hours to obtain a shell-layer composite carrier;
[0035] (2) Preparation of Precursor Solution of Precious Metal Active Components
[0036] Preparation molar concentration is the palladium nitrate aqueous solution of 0.01mol / L, then above-mentioned palladium nitrate aqueous solution is added in the glue solution, the mass ratio of described palladium nitrate aqueous solution and described glue solution is 1:8, obtains precious metal salt glue solution, then Add an aqueous solution of hydrazine hydrate with a mass concentration of 5...
Embodiment 2
[0041] The preparation method of the eggshell type deoxidation catalyst provided in this embodiment comprises the following steps:
[0042] (1) Preparation of shell composite carrier
[0043] Impregnation of δ-Al with glue solution 2 o 3 spherical support in δ-Al 2 o 3 A rubber layer is formed on the outside of the spherical carrier, and 210-mesh TiO 2 The powder is uniformly coated on the adhesive layer, then dried at 60°C for 3 hours, and then fired at 310°C for 4 hours to obtain a shell-layer composite carrier;
[0044] (2) Preparation of Precursor Solution of Precious Metal Active Components
[0045] Prepare a ruthenium chloride aqueous solution with a molar concentration of 0.02mol / L, then add the above-mentioned ruthenium chloride aqueous solution to the glue solution, and the mass ratio of the ruthenium chloride aqueous solution to the glue solution is 1:15 to obtain a noble metal salt glue solution, and then add a formaldehyde solution with a mass concentration o...
Embodiment 3
[0050] The preparation method of the eggshell type deoxidation catalyst provided in this embodiment comprises the following steps:
[0051] (1) Preparation of shell composite carrier
[0052] Impregnation of θ-Al with glue solution 2 o 3 Spherical support with θ-Al 2 o 3 A rubber layer is formed on the outside of the spherical carrier, and 250 mesh TiO 2 The powder is evenly coated on the adhesive layer, then dried at 110°C for 1 hour, and then fired at 500°C for 2 hours to obtain a shell-layer composite carrier;
[0053] (2) Preparation of Precursor Solution of Precious Metal Active Components
[0054] Prepare a rhodium chloride aqueous solution with a molar concentration of 0.001mol / L, then add the above-mentioned rhodium chloride aqueous solution to the glue solution, and the mass ratio of the rhodium chloride aqueous solution to the glue solution is 1:2 to obtain a precious metal salt glue solution, and then add an aqueous formic acid solution with a mass concentrati...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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