Synthesis of more Recent Aluminosilicates with a Potential in Catalysis and Adsorption

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1、SynthesisofmoreRecentAluminosilicateswithaPotentialinCatalysisandAdsorptionStefanErnstDepartmentofChemistry,ChemicalTechnology,UniversityofKaiserslautern,Erwin-Schrödinger-Strasse54,D-67663Kaiserslautern,Germany1IntroductionandScope.........................652Eigh

2、t-MemberedRingZeolites.....................662.1SynthesisofMaterialswiththeDDRFrameworkTopology......673Ten-MemberedRingZeolites......................723.1SynthesisofZeoliteMCM–22......................733.2SynthesisofZeoliteNU–87........................784Twelve-M

3、emberedRingZeolites.....................814.1SynthesisofZeoliteZSM–10.......................814.2SynthesisofZeoliteZSM–18.......................824.3SynthesisofZeoliteMCM–58......................854.4SynthesisofSSZ–24............................874.5SynthesisofZeo

4、liteswithIntersectingTen-andTwelve-MemberedRingPores.................................904.6SynthesisofSuper-LargePoreAluminosilicates............915Conclusion.................................926References.................................931IntroductionandScopeImpro

5、vementsinchemicalprocessesareveryoftenbasedonthediscoveryordevelopmentofnewcatalystsoradsorbents.Oneparticularlyexcitingexampleinthefieldofzeolitecatalysisisthereplacementoftheformerlyusedamor-phoussilica-aluminacatalystsinfluidcatalyticcracking(FCC)ofvacuumgasoil

6、byrareearthexchangedX-typezeolites[1].Thisresultedinconsiderablyimprovedyieldsofthedesiredgasolineand,hence,amuchmoreefficientutilizationofthecrudeoil.FurtherexamplesaretheintroductionofzeoliteHZSM–5ascatalystinthesynthesisofethylbenzenefrombenzeneandethylene[2],f

7、orxyleneisomerization[3]andfortheconversionofmethanoltohigh-MolecularSieves,Vol.1©Springer-VerlagBerlinHeidelberg199866S.Ernstoctanegasoline[4].Withtheadventofanincreasingnumberofsyntheticzeo-litesandzeolite-likematerialstheopportunitiesforimprovingexistingandeven

8、developingnewprocesses(andproducts)havestronglyexpanded.Itistheaimofthepresentpapertoreviewthesynthesisofaselectednumberofmicroporousmaterialswhichhavem