PROCEDE DE REDUCTION DE MINERAIS DE FER GROSSIEREMENT CONCASSESA L'AIDED'UN LIT FLUIDISE A HAUTE TEMPERATURE
摘要
<p>1365688 Reducing iron ore NIPPON KOKAN K K and D KUNII 21 Dec 1971 [26 Dec 1970] 59494/71 Heading C7D Sponge iron is produced by granulating or crushing iron oxide-bearing material to grains having an average diameter of at least 3 mm, feeding the grains to a fluidized bed having a temperature of 900‹C-1200‹C and passing a reducing gas therethrough. The oxide material may be pre-heated before entering the reduction zone and the fluidized bed may be provided by a multi-stage apparatus. The reducing gas may be a reacted mixture of petroleum and air.</p>
申请公布号
BE777239(A1)
申请公布日期
1972.04.17
申请号
BE19710777239
申请日期
1971.12.23
申请人
NIPPON KOKAN K.K., 1-3, 1-CHOME, OTE MACHI, CHIYODA KU, TOKYO,;KUNII DAIZO, 25-16, 1 CHOME, NAKA MACHI, MEGURO KU, TOKYO (JAPON)