Reaction equation
C([O:3][Si:4](OCC)(OCC)[O:5]CC)C.C/C(/O)=C\C(C)=[O:18].C/C(/O)=C\C(C)=[O:25].[O:28]=[V:29].Cl>C(O)C>[O-2:3].[V+5:29].[O-2:18].[O-2:25].[O-2:28].[O-2:3].[V+5:29].[Si:4](=[O:5])=[O:3]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 65 °C
Procedure
10 ml of tetraethoxysilane (TEOS), 1.2 g of vanadyl acetyl-acetonate (O═V(AcAc)2) and 8 ml of ethanol are successively dissolved into one another, and 2 ml of 8 n HCl are added under stirring. Once the gel formation has been completed, the material is heated to 65° C. at a heating rate of 0.5° C./min, is maintained at 65° C. for 3 h, is heated to 250° C. at a heating rate of 0.2° C./min, and is calcinated at this temperature for another 3 h. The adsorption/desorption isotherms show that the material has a true monomodal distribution of the micropores; BET: 542 m2/g; pore diameter: 0.66 nm.
Workup
- additionare added
- temperatureis maintained at 65° C. for 3 h
- temperatureis heated to 250° C. at a heating rate of 0.2° C./min
Sources & evidence
- ORD record
- ord-cd319017c58742808dee6f8559ddd3b0
- Source dataset
- uspto-grants-2001_10
- Patent number
- US06297180B1
Linked notes
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