Global Patent Index - EP 1017858 A1

EP 1017858 A1 2000-07-12 - MIXED BED IRON REDUCTION PROCESS

Title (en)

MIXED BED IRON REDUCTION PROCESS

Title (de)

MISCHBETT-EISENREDUKTIONSVERFAHREN

Title (fr)

PROCEDE DE REDUCTION DE FER A LIT MELANGE

Publication

EP 1017858 A1 (EN)

Application

EP 98918362 A

Priority

  • US 9807777 W
  • US 84146897 A

Abstract (en)

[origin: CA2288095A1] The present invention provides a method for producing direct reduced iron in a continuous and efficient fashion, which includes providing a mixture of a particulate iron oxide composition and a particulate carbonaceous reductant composition; the mixture being substantially unagglomerated and having a moisture content of less than about 14 % water by weight; positioning the mixture onto a rotary hearth furnace; subjecting the mixture to reducing conditions to reduce a substantial portion of the iron oxide, thereby producing sponge iron; and discharging the sponge iron from the rotary hearth furnace.

IPC 1-7 (main, further and additional classification)

C21B 11/08

IPC 8 full level (invention and additional information)

C21B 13/10 (2006.01); C21B 11/08 (2006.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

BR 9809287 A 20010724; CA 2288095 A1 19981029; EP 1017858 A1 20000712; EP 1017858 A4 20000719; JP 2001522405 A 20011113; KR 20010020219 A 20010315

INPADOC legal status


2001-05-02 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20001101

2000-07-19 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20000602

2000-07-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-07-19 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7C 21B 11/08 A, 7C 21B 13/10 B

2000-07-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991026

2000-07-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE