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。
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.
高温燃烧使得炭灰(富含硅和铝)和硫化钙熔为一体，从而产生固体残渣，从锅炉底部溢出。
The high combustion temperatures melt together the coal ash (largely silica and alumna) and calcium sulfide solids to form an inert slag that drains from the bottom of the boiler.
该文对这一方法进行了改进，采用浓缩水样以提高待测元素的含量，并加入二氯化钙作为释放剂来消除硅的干扰。
An improvement on the method is made by using concentrated water sample in order to increase the concentration of trace elements in the samples.
该地基改良材料用组合物的特征在于含有高炉灰，较好 的是还含有硅粉，更好的是还含有水泥或氢氧化钙或者还含有水泥和碱增粘型 合成胶乳。
The composition for ground-improving materials is characterized by containing a blast-furnace fume. Desirably, it contains silica fume and further contains cement or calcium hydroxide.
该地基改良材料用组合物的特征在于含有高炉灰，较好 的是还含有硅粉，更好的是还含有水泥或氢氧化钙或者还含有水泥和碱增粘型 合成胶乳。
The composition for ground-improving materials is characterized by containing a blast-furnace fume. Desirably, it contains silica fume and further contains cement or calcium hydroxide.
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