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Flash vacuum pyrolysis (FVP) is a technique in organic synthesis. It entails heating a precursor molecule intensely and briefly. Two key parameters are the temperature and duration (or residence time), which are adjusted to optimize yield, conversion, and avoidance of intractable products. Often the experiment entails volatilizing a precursor, which is drawn through a "hot zone" followed by rapid condensation. The apparatus typically is conducted under dynamic vacuum. The hot zone must impart heat to the gaseous molecules, so it is generally packed with solids to induce gas-solid collisions. The packing material is generally chemically inert, such as quartz. The precursor (i) volatilizes with gentle heating and under vacuum, (ii) the precursor fragments or rearranges in the hot zone, and f

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  • Die Flash-Vakuum-Pyrolyse (FVP), auch Blitz-Vakuum-Pyrolyse ist eine chemische Reaktion, bei der unter hohen Temperaturen und niedrigem Druck meist gasförmige Stoffe zersetzt werden. Es wird zwischen statischen und dynamischen Prozessen unterschieden. Bei ersteren wird das Edukt in einer geschlossenen Apparatur, wie in einem Autoklav oder einem Bombenrohr erhitzt. Bei dynamischen Prozessen wird entweder ein erhitzter Reaktionsbereich von einem Reaktionsgemisch durchströmt, das aus einem Inertgas und dem Edukt besteht oder das Edukt im Hochvakuum verdampft und so durch in den Reaktionsbereich eingebracht. (de)
  • Flash vacuum pyrolysis (FVP) is a technique in organic synthesis. It entails heating a precursor molecule intensely and briefly. Two key parameters are the temperature and duration (or residence time), which are adjusted to optimize yield, conversion, and avoidance of intractable products. Often the experiment entails volatilizing a precursor, which is drawn through a "hot zone" followed by rapid condensation. The apparatus typically is conducted under dynamic vacuum. The hot zone must impart heat to the gaseous molecules, so it is generally packed with solids to induce gas-solid collisions. The packing material is generally chemically inert, such as quartz. The precursor (i) volatilizes with gentle heating and under vacuum, (ii) the precursor fragments or rearranges in the hot zone, and finally (iii) the products are collected by rapid cooling. Rapid post-reaction cooling and the dilution inherent in gases both suppress bimolecular degradation pathways. (en)
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  • Die Flash-Vakuum-Pyrolyse (FVP), auch Blitz-Vakuum-Pyrolyse ist eine chemische Reaktion, bei der unter hohen Temperaturen und niedrigem Druck meist gasförmige Stoffe zersetzt werden. Es wird zwischen statischen und dynamischen Prozessen unterschieden. Bei ersteren wird das Edukt in einer geschlossenen Apparatur, wie in einem Autoklav oder einem Bombenrohr erhitzt. Bei dynamischen Prozessen wird entweder ein erhitzter Reaktionsbereich von einem Reaktionsgemisch durchströmt, das aus einem Inertgas und dem Edukt besteht oder das Edukt im Hochvakuum verdampft und so durch in den Reaktionsbereich eingebracht. (de)
  • Flash vacuum pyrolysis (FVP) is a technique in organic synthesis. It entails heating a precursor molecule intensely and briefly. Two key parameters are the temperature and duration (or residence time), which are adjusted to optimize yield, conversion, and avoidance of intractable products. Often the experiment entails volatilizing a precursor, which is drawn through a "hot zone" followed by rapid condensation. The apparatus typically is conducted under dynamic vacuum. The hot zone must impart heat to the gaseous molecules, so it is generally packed with solids to induce gas-solid collisions. The packing material is generally chemically inert, such as quartz. The precursor (i) volatilizes with gentle heating and under vacuum, (ii) the precursor fragments or rearranges in the hot zone, and f (en)
rdfs:label
  • Flash-Vakuum-Pyrolyse (de)
  • Flash vacuum pyrolysis (en)
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