Title:
高濃度亜鉛を含有する鉄鉱石から亜鉛を分離し、鉄、有価物を抽出する方法
Document Type and Number:
Japanese Patent JP5380536
Kind Code:
B2
Abstract:
This invention relates to an improved method for processing high zinc iron ores for production of iron and steel comprising the steps of; producing agglomerate comprising a mixture of iron oxides, carbonaceous materials, and fluxes with mean-particle size respectively of 35 to 70, 25 to 60, and 45-85 microns, to form agglomerates of 8 to 15 mm size using combination of organic and inorganic binders and moisture to achieve the desired properties of the agglomerates; dezincificating and metallising the agglomerates in a furnace; smelting the reduced agglomerates, in hot / cold charging condition, to form hot metal (iron) in a furnace leading to production of crude steel; recovering zinc values from waste gas stream of the furnaces by carrying - out conventional zinc extraction process.
Inventors:
Tatabad Car, Villas, Dee.
Dwarapudi, Srinivas
Shankar, Amitab
Kapoor, Gajanan, You.
Dwarapudi, Srinivas
Shankar, Amitab
Kapoor, Gajanan, You.
Application Number:
JP2011524530A
Publication Date:
January 08, 2014
Filing Date:
August 28, 2009
Export Citation:
Assignee:
Tarta Steel Limited
International Classes:
C22B1/244; C21B13/10; C21B13/12; C21C5/52; C22B1/243; C22B5/16; C22B7/02; C22B19/20
Domestic Patent References:
| JP11241125A | ||||
| JP6330198A | ||||
| JP6145830A | ||||
| JP50018311A | ||||
| JP2005220398A | ||||
| JP2005089794A | ||||
| JP2005299979A | ||||
| JP56052097B2 |
Foreign References:
| WO2010005023A1 | ||||
| WO2009145348A1 | ||||
| WO2009032109A1 |
Attorney, Agent or Firm:
Asamura patent office
Hideto Asamura
Hajime Asamura
Yuichiro Asano
Katsunori Ando
Kameoka Mikio
Yoichiro Uemura
Hideto Asamura
Hajime Asamura
Yuichiro Asano
Katsunori Ando
Kameoka Mikio
Yoichiro Uemura