Non-pollution roasting technology by using sodium carbonate, calcium oxide, red mud and lime mud as roasting additives for extraction of vanadium from siliceous navajoite was studied.
采用氧化焙烧法研究了无污染的焙烧添加剂碳酸钠、氧化钙、红泥和苛化泥从硅质岩钒矿中提取钒的焙烧工艺。
2
Lime is the main auxiliary material used for the steel-marking, the quality of lime-roasting has an important influence upon the steel - making process and the steel product quality.