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Zirconiumorthosilicat Produkt Beschreibung
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Definition A naturally occurring silicateof zirconium, ZrSiO 4 , used as a gemstone. The colour depends in smallamounts of other metals and may bered, brown, yellow, or green. Redgem-quality zircon is sometimescalled jacinth; gem-quality zirconswith other colours are called jargoons. In the reactions pentasil zeolite was obtained as a unit of regularly twinned crystallites. The size of the crystallites was about 90 wt.
After hours, the final sub-size in was reached, by the end of the experiment did not change.
The particle size distribution was independent of the synthesis temperature, which was confirmed by SEM images over the temperature range studied. All samples were characterized by Rontgenpulverdiffraktometrie. The degree of crystallinity and phase purity were determined by comparison with the diffractogram of a nebenpha- senfreien standards. In addition, the scanning electron microscopy was used as a further characterization method.
It was found that the approach is ideally suited for the display of pentasil since no sample contained a secondary phase. Kind code of ref document : A1. Designated state s : US. Ref document number : Country of ref document : EP.
Country of ref document : US. The zeolites obtained by this process have a an average particle size from about 0. D occur. Precipitate clearing up d. EPB2 en.
ATT en. DEA1 en. EST5 en. WOA1 en.see url
e-book Struktur und Stabilität der Silikate (German Edition)
A process for producing a zeolite-based catalyst for the conversion of methanol to olefins. Method for the synthesis of ZSM-5 zeolite, at atmospheric pressure and at low temperature. Alkali-free production of large pentasil-crystals as a shell-and fully catalysts. Molecular sieve crystals or aggregates and methods for their production of nanometer-sized.
Crystalline molecular sieve synthesis using quaternary ammonium-functionalized organosiliconate.