CAJ | 학술논문

研究分析了合成铁铝尖晶石的热历程及其热力学特征，并以Al2 O3粉、Fe2 O3粉／高铁铝土矿为原料，以石墨／葡萄糖为还原剂，分别采用烧结法和熔盐法合成了铁铝尖晶石，利用X RD、SEM 及光学显微镜对样品进行了表征。结果表明：在氮气气氛下以Al2 O3粉和Fe2 O3粉为原料采用烧结法合成的铁铝尖晶石结晶良好，采用熔盐法可以显著降低铁铝尖晶石的合成温度，为铁铝尖晶石的工业生产提供了一种较为温和的方法；采用高铁铝土矿为原料，通过氮气气氛下的烧结法可以较为廉价地合成铁铝尖晶石。
연구분석료합성철려첨정석적열역정급기열역학특정，병이Al2 O3분、Fe2 O3분／고철려토광위원료，이석묵／포도당위환원제，분별채용소결법화용염법합성료철려첨정석，이용X RD、SEM 급광학현미경대양품진행료표정。결과표명：재담기기분하이Al2 O3분화Fe2 O3분위원료채용소결법합성적철려첨정석결정량호，채용용염법가이현저강저철려첨정석적합성온도，위철려첨정석적공업생산제공료일충교위온화적방법；채용고철려토광위원료，통과담기기분하적소결법가이교위렴개지합성철려첨정석。
The thermal reaction process and thermodynamic characteristics in the preparation of hercynite were analyzed in this study ,and hercynite was synthesized with ferric bauxite/Al2 O3 powder ,Fe2 O3 powder and praphite powder/glucose by sintering reaction and molten‐salt menth‐od ,respectively .The products were analyzed by XRD ,SEM and optical microscopy .The results show that the hercynite synthesized by sintering reaction under N2 atmosphere has better crystal‐lization .Molten‐salt method can lower the synthesis temperature of hercynite significantly ,which provides a more moderate method for the industrial production of hercynite .Using ferric bauxite as raw material ,hercynite can be synthesized by sintering reaction at a lower cost .