HYL plant(Hylsa, S.A., Mexico's largest private steel company, pioneered a revolutionary direct reduction process, and the existing eight HYL plants are producing about three million tonnes per year of 'sponge iron'. 希尔萨公司是墨西哥最大的私营钢铁公司。该公司首创了具有革命性的直接还原(炼铁)法。它现有的 8 个希尔法直接还原厂,年产海绵铁约 300 万 t。)
direct reduction process(Direct reduction process was begun experimentally in the early 1950's but was not pursued energetically because the improvement of blast furnace efficiency was coming into its stride. 直接还原(炼铁)法于20世纪50年代初开始试验,但由于高炉效率在当时正大幅度提升而未能积极进行下去。)
Spirex process(Midrex and Kobe have announced a new development, the Spirex process, that uses iron ore fines and natural gas to produce DRI or hot briquetted iron (HBI). 米德雷克斯公司和神户钢公司已经宣布了一项新的开发研究项目,即直接还原炼铁法。该炼铁法利用铁矿粉和天然气生产直接还原铁或热压块铁)
shaft-furnace direct reduction process(【技】在竖炉中用高温还原气体或固体还原剂还原铁矿石的直接还原炼铁法。该炼铁法于1932年由马丁威伯格发明,故亦称威伯格法,即 Wiberg process 和Wiberg Soderfors process。 该法开始用木炭制造还原气。后因经济上的原因,改用焦炭制气。20世纪60年代,随着石油、天然气工业的发展,以天然气为能源的竖炉直接还原法蓬勃发展。先后衍生出阿姆柯法、普罗费尔法、米德莱克斯法、希尔法等竖炉直接还原炼铁法及用煤作为直接还原剂的外热式竖炉直接还原法。)