SKF炼钢工程技术公司将建造一个用等离子技术从炼钢生产袋式收尘室的烟尘中回收有价金属的工厂。这个厂将花费约2600万美元,它将建在瑞典西南郊的朗茨克鲁纳。该厂主要为斯堪的纳维亚的炼钢厂服务,但也有能力处理欧洲大陆上炼钢厂的烟尘,能力为每年7万吨。从炼钢厂过滤器排出的烟尘中含有铁、锌、镍、铬和钼。至今一般是把它们送至废物堆,金属从废堆里再浸滤到地下水中。用于朗茨克鲁纳炼钢厂的等离子烟尘法是由SKF的等离子炼铁工艺演化而来。该法所用的等离子发生器,是美国模拟宇宙飞船喷嘴鼻锥和隔热屏所经受的温度而研制的型号,它已被冶金还原过程所采用。正组建的独立的Scandust公司,将经营计划在 SKF Steel Works Engineering will build a plant that uses plasma technology to recover valuable metals from soot produced from steel-making baghouses. The plant will cost about 26 million U.S. dollars and it will be built in Langzcruckl, in the southwestern suburbs of Sweden. The plant mainly serves Scandinavian steel mills but is also capable of handling soot from European mills in the European continent with a capacity of 70,000 tons per year. Smoke from steel mill filters contains iron, zinc, nickel, chromium and molybdenum. To date, they are usually sent to the waste dump, where they are leached from the waste dump into the groundwater. The plasma soot process for the Langzcruckworks is evolved from SKF’s plasma ironmaking process. The plasma generator used in this method, a model developed for the temperatures experienced by the nasal cones and heat shields of a U.S. simulated spacecraft, has been used by the metallurgical reduction process. The independent Scandust company that is forming, plans to operate at