Preparation method of perfluoro-2-methyl-3-pentanone
A methyl and pentanone technology is applied in the field of preparation of perfluoro-2-methyl-3-pentanone, can solve problems such as high cost, low production efficiency, environmental pollution, etc., achieves low cost, improved service life, The effect of reducing environmental pollution problems
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0033] One-step Catalytic Oxidation of Perfluoro-2-methyl-2-pentene to Perfluoro-2-methyl-3-pentanone by Supporting KF and RbF on Activated Carbon
[0034] (i) Pretreatment of activated carbon support
[0035] Prepare 4.6mol / L of HNO 3 Solution 50mL, then weigh 10g of coconut shell activated carbon into a round bottom flask, pour the prepared nitric acid, reflux in a water bath at 90°C for 5h, then wash with distilled water at the same temperature for 8 hours, put 10g of coconut shell activated carbon in In a vacuum oven, dry at 110°C for 6 hours and take it out;
[0036] (ii) Catalyst preparation by isometric impregnation method
[0037] Add 12mL of the mixed solution containing 1g of potassium fluoride and 0.5g of rubidium fluoride dropwise onto the activated carbon under stirring, let it stand for 24h, dry at 110°C for 8h, and then roast at 550°C for 3h in a nitrogen atmosphere to obtain the catalyst RbF -KF / AC;
[0038] (iii) Catalyzed reaction
[0039] The reaction t...
Embodiment 2
[0041] One-step Catalytic Oxidation of Perfluoro-2-methyl-2-pentene to Perfluoro-2-methyl-3-pentanone by Supporting KF and RbF on Activated Carbon
[0042] The implementation steps are the same as in Example 1, except that the catalytic reaction temperature in step (iii) is changed to 250°C, and the reaction pressure is 0.7MPa. After the reaction, the gas is received by condensation and measured and analyzed. The conversion rate of -pentene was 76.7%, and the selectivity of perfluoro-2-methyl-3-pentanone was 59.1%.
Embodiment 3
[0044] La 2 o 3 Preparation of Perfluoro-2-methyl-3-pentanone by Promoted RbF-KF / AC Catalyst
[0045] (i) Catalyst preparation
[0046] First prepare the RbF-KF / AC catalyst according to Example 1, weigh 1.06g of lanthanum nitrate, dissolve it in 12mL of distilled water, add the lanthanum nitrate solution dropwise to the Rb-KF / AC catalyst under stirring, and dry at 110°C for 8h , and then calcined at 550°C for 3h in a nitrogen atmosphere to obtain La 2 o 3 -RbF-KF / AC catalyst;
[0047] (ii) Catalytic reaction
[0048] The catalytic reaction process is the same as step (iii) of Example 1. The results show that the conversion rate of perfluoro-2-methyl-2-pentene is 78.5%, and the selectivity of perfluoro-2-methyl-3-pentanone is 81.1% %.
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