Scale analysis indicates that the scale mostly consists of calcium carbonate, a little of iron scale and magnesium carbonate.
经过垢样分析，结垢主要为碳酸钙、少量铁垢及碳酸镁垢。
The iron powder quality is ensured through tunnel kiln reduction and second reduction by using iron scale of high grade as raw material.
以优质铁鳞为原料，加强隧道窑和二次精还原工艺技术管理，确保铁粉质量。
New technology for making ferric oxide yellow pigment by using waste iron scale with medium high carbon instead of low carbon as raw material is stated.
研究了利用中高碳钢废铁屑生产铁黄颜料的工艺，产品质量符合国家标准，铁的转化率达98%以上。
New technology for making ferric oxide yellow pigment by using waste iron scale with medium high carbon instead of low carbon as raw material is stated.
研究了利用中高碳钢废铁屑生产铁黄颜料的工艺，产品质量符合国家标准，铁的转化率达98%以上。
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