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  • 1
    Electronic Resource
    Electronic Resource
    Thermal behaviour of acidic salts of mixed tetravalent metals (1989)
    Springer
    Journal of thermal analysis and calorimetry 35 (1989), S. 1527-1539 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Ergebnisse über Untersuchungen an in Schichten eingelagerten kristallinen Zirkoniumphosphat sind in der Literatur beschrieben. Das Verhalten kristalliner Phosphate, die sowohl Zirkoniumals auch Titanmetallionen enthalten, wurde bis jetzt nicht untersucht. Als Teil dieser Untersuchungen wurde das thermische Verhalten solcher Materialien im Temperaturbereich 25–1000 °C durch simultanes Registrieren der TG-, DTG- und DTA-Kurven näher bestimmt, dessen Ergebnisse hier dargelegt werden.
    Abstract: Резюме Результаты исследов аний интеркалирован ного кристаллического фо сфата циркония описаны в литературе. До настоящего времен и не исследованы кристал лические фосфаты, содержащие иона цирк ония и титана. Неполно представлено термич еское поведение таки х материалов, изученны х совмещенным методо м ТГ, ДТГ и ДТА в температурном и нтервале 25–1000°. Представлены пол ученные данные.
    Notes: Abstract The results of investigations on intercalated crystalline zirconium phosphate are described in the literature. The behaviour of crystalline phosphates containing both zirconium and titanium metal ions has not been investigated previously. Within these investigations, the thermal behaviour of such materials has been studied in the temperature interval 25–1000 °C by simultaneous recording of TG, DTG and DTA curves. The results are presented in this paper.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01912930
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Mixed insoluble acidic salts of tetravalent metals V. Effect of gamma radiation and drying temperature on granular mixed zirconium-titanium phosphates (1988)
    Springer
    Journal of radioanalytical and nuclear chemistry 121 (1988), S. 185-193 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Solid ZrOCl2·8H2O was added in a slow stream to a solution of phosphoric acid or to a solution of TiCl4 in phosphoric acid to obtain granules of amorphous Zr(HPO4)2·nH2O or ZrxTi(1−x) (HPO4)2·nH2O(where x=0.95−0.80). Half of each product had been soaked in ethanol to produce alcohol solvated materials. It was found that the particle size of the resulting materials is very similar to that of ZrOCl2·8H2O, in such a way that it may be controlled indirectly. These materials are suitable for ion-exchange column operations. The relatively high gamma radiation doses of60Co source did not alter its exchange properties. pH-titrations were performed by an automatic titrimeter and the exchange capacities of alkali metal ions were determined by isotopic tracer technique. Effect of drying temperature on the ion exchange properties of Na+, K+ and Cs+ on the granular materials have been studied. Other characterizations were made by usual chemical analysis and thermography.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02041460
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Thermal behaviour of acidic salts of mixed tetravalent metals (1990)
    Springer
    Journal of thermal analysis and calorimetry 36 (1990), S. 171-179 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Gemischte Zirkonium-Titanphosphatproben wurden in einer Gammabestrahlungskammer mit einer Co-60-Quelle bestrahlt. Die adsorbierte Dosis betrug 106 Gy. Bei dieser Dosis konnte eine Veränderung im thermischen Verhalten nur für Proben mit eingelagertemn-Butylamin odern-Propylamin festgestellt werden. Weiterhin wurde gefunden, daß Titan die Zersetzung und die Abgabe der organischen Moleküle katalysiert.
    Notes: Abstract Mixed zirconium-titanium phosphate samples were irradiated in a gamma-radiation facility with a Co-60 source. The adsorbed dose was 106 Gy. At this dose, a change in thermal bahaviour was found only for the samples intercalated withn-butylamine orn-propylamine. Further, it was found that the titanium catalysed the decomposition and the loss of organic molecules.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01912079
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    Paper (German National Licenses)
    Fulltext
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