兰炭
兰炭又称半焦、焦粉，颜色呈浅黑色；具有固定碳高、比电阻高、化学活性高、含灰份低、低硫、低磷的特性，被广泛运用于化工、冶金、造气等行业，主要用来生产电石、铁合金、硅铁、碳化硅、硅锰、化肥等产品。
兰炭中料质量指标：
粒度20-35mm、水份（W）≤15%、灰份（A）≤8%、挥发份（V）5-8%、固定碳（FC）≥85%、磷（P）≤0.03%、硫（S）≤0.3%
Product Introduction
Semi-coke is light black;characterized by high fixed carbon,high specific resistance,high chemical activity,low ash content,low sulfur and Low phosphorus;wildly applied to such industries as chemical industry,metallurgic industry,gas-making industry,etc.;used to produce calcium carbide,ferroalloy,ferrosilicon,silicon carbide,silicomanganese,fertilizer,etc.
Quality Indicator of Semi-coke:
Medium Material:Grain size 20-35mm，Moisture(W)≤15%,Ash(A)≤8%,Volatile Matter(V)5-8%,Fixed carbon(FC)≥85%,Phosphorus(P)≤0.03%,sulfur(S)≤0.3%
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