Počet záznamů: 1

The Re-Mo-S system: New data on phase relations between 400 and 1200 °C

  1. 1.
    0350012 - GLU-S 2011 RIV DE eng J - Článek v odborném periodiku
    Drábek, M. - Rieder, M. - Böhmová, Vlasta
    The Re-Mo-S system: New data on phase relations between 400 and 1200 °C.
    European Journal of Mineralogy. Roč. 22, č. 4 (2010), s. 479-484 ISSN 0935-1221
    Výzkumný záměr: CEZ:AV0Z30130516
    Klíčová slova: phase relations * Re–Mo–S system, * molybdenite * rheniite * Re * Mo * S
    Kód oboru RIV: DB - Geologie a mineralogie
    Impakt faktor: 1.469, rok: 2010

    Phase relations in the Re–Mo–S system were studied by the technique of evacuated silica tubes in the temperature range of 400–1200 °C. At 1000 °C, the following assemblages are stable: MoS2 + ReS2 + S2(v); MoS2 + ReS2 + (Re,Mo)ss + v; MoS2 + Mo2S3 + (Re,Mo)ss + v; Mo2S3 + + (Re,Mo)ss + v, Mo2S3 + + (Mo,Re)ss + v. Experiments aimed at the determination of the MoS2-ReS2 solid state solubility reveal an asymmetrical behaviour: molybdenite dissolves 2.7(9) wt% Re at 1000 °C, 2.6(4) wt% Re at 800 °C, and 2.2(6) wt% Re at 400 °C, whereas ReS2 shows negligible Mo contents at all temperatures. The experimental solubility of ReS2 in MoS2 far exceeds Re contents in natural molybdenite, for which literature reports hundreds to thousands ppm.
    Trvalý link: http://hdl.handle.net/11104/0190116