【法刊《冶金评论》一九七四年第四期报道】荷兰胡格文斯厂介绍了一种铁水除硫方法——喷吹碳氮化钙。这种除硫剂是一种黑色粉末状混合物(百分之六十小于六十三微米,百分之零点一大于一毫米),这种混合物的化学组成如下: 石墨十二(重量百分比,下同)、碳氮化钙四十五、碳酸钙二十二、氧化钙十一、氢氧化钙三点五,其余六点五为少量氧化硅、氧化亚铁、三氧化二铝等。 【Journal “Metallurgical Review” fourth issue in 1974 reported】 Huguens plant in the Netherlands introduced a hot metal desulfurization method - injection of calcium carbonitride. The sulfur remover is a black powdery mixture (sixty percent less than sixty-three microns, one tenth more than one millimeter) and the chemical composition of this mixture is as follows: Graphite Twelve (weight percent, The same below), calcium carbonitride 45, calcium carbonate 22, calcium oxide 11, calcium hydroxide 3.5, and the remaining 6.5 for a small amount of silicon oxide, ferrous oxide, aluminum oxide and the like.