Preparation method of catalyst for preparing acrylic acid from propane
Through stirring treatment of the MoVTeNbOx catalyst and dilution and mixing of silicon carbide, a high-active catalyst was prepared, which solved the problem of low activity of the existing catalyst, achieved the improvement of propane conversion and acrylic selectivity, and had good industrial application prospects.
CN119657180APending Publication Date: 2025-03-21ANHUI HUANXUAN MATERIAL TECH CO LTD
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Patent Information
- Application Number
- CN202411470254.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-03-21
AI Technical Summary
Technical Problem
The existing catalysts have low activity in the selective oxidation of propane to acrylic acid reaction, which limits its promotion in industrial applications.
Method used
A highly active nanocomposite oxide catalyst was prepared by stirring the MoVTeNbOx composite oxide catalyst at different temperatures and solutions, diluting and mixing with silicon carbide, and calcining in a specific atmosphere.
Benefits of technology
The activity of the catalyst in selective oxidation of propane to prepare acrylic acid reaction is significantly improved, the propane conversion rate and acrylic acid selectivity are improved, the preparation process is simplified, and the operation is improved.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to the technical field of catalysts, in particular to a method for preparing an acrylic acid catalyst from propane, which comprises the following steps: stirring a prepared MoVTeNbOx composite oxide catalyst by using different solutions at a certain temperature, and then washing, separating and drying to obtain a MoVTeNbOx / MoVTeNbOx / MoVTeNbOx / MoVTeNbOx / MoVTeNbOx composite oxide catalyst. And finally, calcining in an inert atmosphere to obtain the corresponding catalyst. The prepared MoVTeNbOx nano composite oxide catalyst is diluted and mixed with silicon carbide, and a catalytic reaction is carried out in mixed gas of propane, oxygen, argon and water vapor. According to the present invention, the propane conversion rate and the acrylic acid selectivity of the catalyst prepared through the method are higher than the conventional level in the prior art, the catalyst activity can be effectively improved so as to improve the catalytic reaction effect of the catalyst, and the whole preparation process is simple and controllable, is convenient and rapid to operate, and has good application prospects.
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