CAJ | 학술논문

运用马弗炉焙烧钒渣得到不同温度阶段的熟料，采用偏光显微镜、扫描电子显微镜、电子探针以及能谱仪等对钒渣物相结构、形貌以及焙烧过程中物相组成变化规律等进行详细分析。通过偏光显微镜观察得出钒渣主要由钒尖晶石、金属铁、硅酸盐及钛铁矿等物相组成；通过能谱成分分析得出钒尖晶石为主要含钒物相；通过扫描电镜和电子探针观察钒渣焙烧过程形貌变化，得出钒尖晶石最终氧化分解形成铁板钛矿、氧化铁以及钒酸钙相，认为钒渣物相结构(钒尖晶石晶粒大小、硅酸盐粘结相分布和分散金属铁量的多少)、熟料中钒的存在形式、钒酸钙相的生成含量以及高熔点硅酸盐的形成等都可能会影响钒的转化率高低。
운용마불로배소범사득도불동온도계단적숙료，채용편광현미경、소묘전자현미경、전자탐침이급능보의등대범사물상결구、형모이급배소과정중물상조성변화규률등진행상세분석。통과편광현미경관찰득출범사주요유범첨정석、금속철、규산염급태철광등물상조성；통과능보성분분석득출범첨정석위주요함범물상；통과소묘전경화전자탐침관찰범사배소과정형모변화，득출범첨정석최종양화분해형성철판태광、양화철이급범산개상，인위범사물상결구(범첨정석정립대소、규산염점결상분포화분산금속철량적다소)、숙료중범적존재형식、범산개상적생성함량이급고용점규산염적형성등도가능회영향범적전화솔고저。
The vanadium slag was roasted in muffle furnace to produce clinkers with different temperature stages. The vanadium slag phase structure, morphology and change law of phase composition in roasting process were sys-tematically analyzed by polarizing microscope, scanning electron microscope, electronic probe and energy disperse spectroscopy. It was found from polarizing microscope observation that the vanadium slag was mainly composed of vanadium spinel, metallic iron, silicate and ilmenite. The energy disperse spectroscopy results indicated that the vanadium spinel was mainly the vanadium-containing phase. The morphology change of vanadium slag in roasting process was observed by scanning electron microscope and electronic probe, and it was found that the vanadium spi-nel was finally oxidized and decomposed to form pseudobrookite, iron oxide and calcium vanadate. The vanadium conversion rate was possibly affected by the vanadium slag phase structure ( the grain size of vanadium spinel, the binding phase distribution of silicate and the content of disperse metallic iron) , the existence form of vanadium in clinkers, the content of generated calcium vanadate and the formation of high melting point silicates.