Global Patent Index - EP 0037809 B1

EP 0037809 B1 19850828 - METHOD OF AND ARRANGEMENT FOR PRODUCING MOLTEN PIG IRON OR STEEL PREMATERIAL

Title (en)

METHOD OF AND ARRANGEMENT FOR PRODUCING MOLTEN PIG IRON OR STEEL PREMATERIAL

Publication

EP 0037809 B1 19850828 (DE)

Application

EP 81890058 A 19810402

Priority

AT 182880 A 19800403

Abstract (en)

[origin: ES8205266A1] In a method of, and arrangement for, producing molten pig iron or steel pre-material iron-oxide-containing raw-material particles are top-charged into a fluidized bed formed of carbon particles and an oxygen-containing carrier gas. When passing the fluidized bed, the raw-material particles are heated, reduced and smolten. In order to achieve a better utilization of energy with such a method, i.e. to considerably lower the total energy input, additional energy is supplied to the fluidized bed by plasma heating.

IPC 1-7

C21B 13/12

IPC 8 full level

C21B 11/08 (2006.01); C21B 13/00 (2006.01); C21B 13/12 (2006.01)

CPC (source: EP US)

C21B 13/002 (2013.01 - EP US); C21B 13/125 (2013.01 - EP US)

Citation (examination)

Designated contracting state (EPC)

BE DE FR GB IT LU NL SE

DOCDB simple family (publication)

EP 0037809 A1 19811014; EP 0037809 B1 19850828; AT 367453 B 19820712; AT A182880 A 19811115; AU 537907 B2 19840719; AU 6907181 A 19811008; BR 8102003 A 19811006; CA 1160056 A 19840110; DD 157915 A5 19821215; DE 3171978 D1 19851003; ES 501074 A0 19820601; ES 508210 A0 19821216; ES 8205266 A1 19820601; ES 8302102 A1 19821216; FI 68264 B 19850430; FI 68264 C 19850812; FI 811014 L 19811004; JP S56156708 A 19811203; NO 153144 B 19851014; NO 153144 C 19860122; NO 811138 L 19811005; PH 18456 A 19850718; PL 130491 B1 19840831; PL 230508 A1 19811223; SU 1118292 A3 19841007; US 4396421 A 19830802; ZA 812222 B 19820630

DOCDB simple family (application)

EP 81890058 A 19810402; AT 182880 A 19800403; AU 6907181 A 19810403; BR 8102003 A 19810402; CA 374551 A 19810402; DD 22889381 A 19810402; DE 3171978 T 19810402; ES 501074 A 19810403; ES 508210 A 19811221; FI 811014 A 19810402; JP 5103881 A 19810403; NO 811138 A 19810402; PH 25116 A 19810121; PL 23050881 A 19810403; SU 3266249 A 19810402; US 25040381 A 19810402; ZA 812222 A 19810402