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準,铁的转化率达98%以上。
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。
Of which mixing silo is welded by the steel, a layer of antifriction cast iron scale boards is embedded in the medial wall with sunk screws.
其中搅拌筒体是用钢板焊接而成,内壁用沉头螺钉铺装一层铸铁衬板。
Using waste from recycling the NdFeB scrap and iron scale as raw materials, immersing it by H2SO4 and purifying, the purified liquid of Fe2 + was obtained.