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40 006 (0,157s)

Result

Comparison of Pervaporation and Perstraction for the Separation of p-xylene/m-xylene Mixtures Using PDMS and CTA Membranes

, for the separation of pxylene/m‑xylene mixtures using membranes from polydimethylsiloxane (PDMS studied. While PDMS showed almost no selectivity to pxylene over m‑xylene during of a membrane e...

Polymer science

  • 2021
  • Jimp
  • Link
Result

Acylation of p-xylene over zeolites

acylation of p-xylene. Hexanoyl chloride, propionic anhydride and isobutyric anhydride that acylation of p-xylene proceeds only over large pore zeolites Beta and USY. Selectivities to monoacylated p-x...

CF - Fyzikální chemie a teoretická chemie

  • 2012
  • Jx
  • Link
Result

Post-Synthesis Modification of SSZ-35 Zeolite to Enhance the Selectivity in p-Xylene Alkylation with Isopropyl Alcohol

Modification of textural and chemical properties of SSZ-35 was investigated in respect to the catalytic behavior of this zeolite in p-xylene alkylation with isopropyl alcohol. Acidic treatment of the external surface of SSZ-35 cryst...

CF - Fyzikální chemie a teoretická chemie

  • 2010
  • Jx
Result

Absorption of pressurized methane in normal and supercooled p-xylene revealed via high-resolution neutron imaging

of methane with p-xylene. Liquid bodies of perdeuteratedp-xylene (p-C8D10), and, for comparison, o-xylene (o-C8D10), were exposed to pressurized methane(CH4, up to 101 bar in supercooled liquid p...

Physical chemistry

  • 2023
  • Jimp
  • Link
Result

The Effect of Zeolite Structure on the Activity and Selectivity in p-Xylene Alkylation with Isopropyl Alcohol

The effect of zeolite architecture and channel dimensionality on p-xylene conversion and selectivity to 1-isopropyl-2,5-dimethyl-benzene was investigated in p-xylene alkylation with isopropyl alcohol over novel zeo...

CF - Fyzikální chemie a teoretická chemie

  • 2009
  • Jx
Result

Gas-phase isomerisation of m-xylene on isoreticular zeolites with tuneable porosity

-xylene towards p-xylene is an industrially important reaction due to a high demand porosity on the performance in isomerisation of m- to p-xylene. Smaller pore zeolites the lowest conversions, while the h...

Physical chemistry

  • 2022
  • Jimp
  • Link
Result

High activity of iron containing metal-organic-framework in acylation of p-xylene with benzoyl chloride

Catalytic behavior of metal-organic-frameworks (MOFs) Cu-3(BTC)(2), MIL-100(Fe) and MIL-100(Cr) was investigated in p-xylene acylation with benzoyl chloride and compared with the behavior of large pore zeolites Beta and USY. It has ...

CF - Fyzikální chemie a teoretická chemie

  • 2012
  • Jx
  • Link
Result

Extra-Large-Pore Zeolites with UTL Topology: Control of the Catalytic Activity by Variation in the Nature of the Active Sites

The catalytic behavior of isomorphously substituted B-, Al-, Ga-, and Fe-containing extra-large-pore UTL zeolites was investigated in the acylation of p-xylene is characterized by theoptimum activity and selectivity in the benzoylat...

CF - Fyzikální chemie a teoretická chemie

  • 2013
  • Jx
  • Link
Result

Aromatic Transformations Over Mesoporous ZSM-5: Advantages and Disadvantages

Catalytic behavior of mesoporous ZSM-5 was investigated in toluene disproportionation, toluene alkylation with isopropyl alcohol, and p-xylene alkylation of zeolite crystals. Conversions of toluene and p-xylene inc...

CF - Fyzikální chemie a teoretická chemie

  • 2010
  • Jx
  • Link
Result

High activity of Ga-containing nanosponge MTW zeolites in acylation of p-xylene

Aluminosilicate and gallosilicate MTW zeolites were prepared in the bulk and nanosponge form by direct hydrothermal synthesis. Designed materials were tested in acylation of p-xylene with benzoyl chloride and compared with large por...

Physical chemistry

  • 2020
  • Jimp
  • Link
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