Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR PRODUCING LUPPE USING HIGH ZINC-CONTENT IRON ORE
Document Type and Number:
Japanese Patent JP2010031355
Kind Code:
A
Abstract:

To provide a method for producing luppe using high zinc-content iron ore with which the effective utilization can be obtained.

This method for producing the luppe using the high zinc-content iron ore is particularly used as the followings, that mixed raw materials 4 for mixing the iron ore containing the high zinc-content iron ore composed of 0.01 mass% zinc and 50 mass% iron, carbonaceous solid reducing material and slag-making material are piled up on a moving-type furnace hearth 3, and the mixed raw materials 4 are reduced by supplying the heat from the upper part of the furnace hearth 3 and further, fused to obtain the reduced iron. It is desirable that a blending ratio of the high zinc-content iron ore is 10 mass% of the whole iron ore; the mixed raw materials 4 are piled up on the piling-up layer of the carbonaceous material on the furnace hearth 3; the mixed raw materials 4 are agglomerated and piled up on the furnace hearth 3; and the mixed raw materials 4 are heated to 1450C.


Inventors:
NUSHISHIRO KOICHI
HIROHANE HIROYUKI
ISHIWATARI NATSUO
Application Number:
JP2009106319A
Publication Date:
February 12, 2010
Filing Date:
April 24, 2009
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
JFE STEEL CORP
International Classes:
C21B13/10; C21B11/08; C22B5/10; C22B5/16; C22B7/02; C22B19/30; C22B19/38
Domestic Patent References:
JPH11335712A1999-12-07
JPH11172312A1999-06-29
JP2005220398A2005-08-18
JP2005299979A2005-10-27
JP2001033173A2001-02-09
JP2000169906A2000-06-20
JP2010031356A2010-02-12
Foreign References:
WO2009131242A12009-10-29
Attorney, Agent or Firm:
Kenichiro Ochiai
Kazuhiro Mori



 
Previous Patent: METHOD FOR PRODUCING PLATINUM NANOPARTICLE

Next Patent: METHOD FOR PRODUCING REDUCED IRON USING HIGH ZINC-CONTENT IRON ORE