Zobrazeno 1 - 10 of 13 pro vyhledávání: '"Jürgen Richter‐Mendau"'
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ChemInform Abstract: Characterization of AlPO4-14 by Magic-Angle-Spinning Nuclear Magnetic Resonance Spectroscopy and Thermoanalytical and Adsorption Measurements
Autor: Ursula Lohse, Bodo Zibrowius, Jürgen Richter-Mendau
Publikováno v: ChemInform. 22
AlPO4-14 has been prepared using piperidine as templating agent. Uniform crystals of tabular habit were obtained. By thermoanalytical measurements of the as-synthesized sample the content of occluded piperidine was determined and its degradation was
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3209c189b3a24c9a9e24d66ee2cc8270
https://doi.org/10.1002/chin.199133015
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5
Structure and Shape-Selective Properties of MFI Type Ferrisilicates. A Comparison with Aluminosilicate Analogues
Autor: R. Fricke, Gert Vorbeck, Jürgen Richter-Mendau, Blanka Wichterlová, Jiří Čejka
Publikováno v: Collection of Czechoslovak Chemical Communications. 57:799-808
A comparison of H-forms of Fe- and Al-substituted silicates of MFI structure and of a comparable crystal size is given from the point of view of the acidity of SiOHMe groups, activity as well as para-selectivity in toluene disproportionation and tolu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9a023b8afb4a9eb4263d4ea296e1628f
https://doi.org/10.1135/cccc19920799
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8
Group behaviour of SAPO-11 molecular sieves containing various metals (Mg, Zn, Mn or Cd, Ni, Cr)
Autor: Gerd Finger, Werner H. Baur, Werner Joswig, Jürgen Richter-Mendau, Jan Kornatowski, Dietrich Schultze, Karin Jancke
Publikováno v: Journal of the Chemical Society, Faraday Transactions. 90:2141
Derivatives of SAPO-11 containing Mg, Zn, Mn, Cd, Ni and Cr as heteroatoms have been synthesized. These additions influence considerably both the properties and the morphology of the crystalline phases synthesized. The products noted as MeAPSO-11 wer
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1e4f752a25348c5bf9f1f5418510b7dc
https://doi.org/10.1039/ft9949002141
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9
Characterization of AlPO4-14 by magic-angle-spinning nuclear magnetic resonance spectroscopy and thermoanalytical and adsorption measurements
Autor: Jürgen Richter-Mendau, Ursula Lohse, Bodo Zibrowius
Publikováno v: Journal of the Chemical Society, Faraday Transactions. 87:1433
AlPO4-14 has been prepared using piperidine as templating agent. Uniform crystals of tabular habit were obtained. By thermoanalytical measurements of the as-synthesized sample the content of occluded piperidine was determined and its degradation was
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a59e5a7bd4b851376f8582b071bcfdb
https://doi.org/10.1039/ft9918701433
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10
Crystal destruction of zeolite NaA during ion exchange with magnesium and calcium ions
Autor: Jürgen Richter-Mendau, U. Lohse, B. Fahlke, W. Lutz, Martin Bülow
Publikováno v: Crystal Research and Technology. 18:513-518
Extreme conditions of ion exchange like, for instance, highly concentrated solution, high temperature and a long time of exchange can cause destructions of crystals. Zeolites NaMgA are structurally degraded much more than zeolites NaCaA. Reason for t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fae0fccc423239f40011c710bf4d4bd0
https://doi.org/10.1002/crat.2170180412
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