【摘要】 研究了氟化钙在熔融氟化钠和冰晶石中的4种不同的结构模型。将所计算的二元系液相线与所实测的液相线进行比较。结果表明,当氟化钙加到熔融的氟化钠中时生成一个钙三个氟的阴离子。而在冰晶石-氟化钙熔体中存在着一个钙三个氟的阴离子和一个钙一个氟的阳离子。更多还原

【Abstract】 Four different structural models were studied for the dissolution of calcium fluoride in molten sodium fluoride and molten cryolite. Liquidus curves calculated from these systems were compared with that measured . The results indicate that CaF3- ions are formed when adding calcium fluoride to molten sodium fluoride , whereas there are both CaF3- ions and CaF+ ions in cryolite-calcium fluoride melts . Increasing acidity in cryolite melts will favour the formation of CaF+ ions.更多还原