Global Patent Index - EP 1017858 A4

EP 1017858 A4 2000-07-19 - 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 A4 (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; C21B 13/10

IPC 8 full level (invention and additional information)

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

Citation (search report)

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2001-05-02 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20001101

2000-07-19 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20000602

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

- Ref Legal Event Code: AK

- 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)

- Ref Legal Event Code: RIC1

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

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

- Ref Legal Event Code: 17P

- Effective date: 19991026

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

- Ref Legal Event Code: AK

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