Method for preparing valerolactone through catalytic hydrogenation of ethyl levulinate
A technology of ethyl levulinate and valerolactone, which is applied in the field of catalytic biomass, can solve the problems of harsh reaction conditions, unfavorable reuse, poor stability, etc., and achieve the effects of less environmental pollution, good reusability, and less trouble
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0029] Example 1: Preparation of Microspherical Titanium-Zirconium Oxide Catalysts with Different Molar Ratio
[0030] First weigh a total of 10 mmol of C 12 h 28 o 4 Ti and C 12 h 28 o 4Zr (Ti:Zr=1:0; 8:2; 5:5; 2:8; 0:1) solution was dissolved in 10 ml of CH 3 CH 2 OH to obtain a solution, then 5 mmol (1.2071 g) of hexadecylamine was dissolved in 100 ml of CH 3 CH 2 OH, to which was added 0.55 mL of H 2 O with 0.45 mL of KCl (0.1 M) to obtain a solution of b. Drop the solution a into the solution b under vigorous stirring, and let it stand at room temperature for 18 h.
[0031] Centrifuge the white emulsion with CH 3 CH 2 The white solid was washed with OH, and dried at room temperature to obtain a titanium-zirconium oxide precursor. Weigh 1.2 g precursor and disperse in 15 mL CH 3 CH 2 OH with 7.5 mL H 2 O mixed solution at 160 o C water heat treatment for 16 h, and then filtered, with CH 3 CH 2 OH washing 3 times, 500 in the air o Calcined at C for 2 h t...
Embodiment 2
[0032] Example 2: Application of microspherical titanium-zirconium oxide catalyst in converting ethyl levulinate into valerolactone.
[0033] Weigh 0.072 g of titanium-zirconium oxide catalyst (Ti:Zr=2:8) into a 25-milliliter autoclave, and add 1 mmol (0.1442 g) ethyl levulinate in the reaction kettle, 5 mL iso Propanol (as hydrogen source and solvent), add 0.02 g naphthalene as internal standard, put the reaction kettle at 180 o After reacting for 6 h in C environment, the reaction was stopped, and the reactor was cooled to room temperature in tap water. After filtering the cooled reaction solution, the yield of the product was analyzed by high-performance gas chromatography, and the conversion rate of ethyl levulinate was calculated to be 100% and the yield of valerolactone was 90.1% using the external standard method.
Embodiment 3
[0034] Example 3: The difference from Example 2 is that the titanium-zirconium molar ratio, reaction temperature, and reaction time of the titanium-zirconium catalyst are different. The results are shown in Table 1.
[0035] Table 1
[0036] Catalyst (Ti:Zr)
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