Title:
A zinc manufacturing method which uses electric furnace dust as materials
Document Type and Number:
Japanese Patent JP6099167
Kind Code:
B2
Abstract:
A zinc production method including a chlorination step 101 at which crude zinc chloride vapor 3 and an oxygen gas 2 are obtained by bringing electric furnace dust 1 containing zinc oxide or secondary dust 1 generated at the time of reducing the electric furnace dust in a reduction furnace into contact with a mixed gas containing a chlorine gas 8 and an oxygen-containing gas 10, converting a zinc oxide component in the electric furnace dust 1 or the secondary dust 1 into zinc chloride, and vaporizing the zinc chloride. The zinc production method further includes purification steps 102, 104, and 105 at which a zinc chloride component contained in the crude zinc chloride vapor 3 is separated from components 5 and 7 other than zinc chloride contained in the crude zinc chloride vapor 3 to obtain a purified zinc chloride melt 6, and an electrolysis step 103 at which the purified zinc chloride melt 6 is electrolyzed to obtain a zinc melt 9 and the chlorine gas 8.
Inventors:
Masaaki Anzaki
Shuji Maori
Sato
Shuji Maori
Sato
Application Number:
JP2015534361A
Publication Date:
March 22, 2017
Filing Date:
September 01, 2014
Export Citation:
Assignee:
Kinotech Solar Energy Co., Ltd.
International Classes:
C22B19/30; C22B5/04; C22B7/02; C22B9/02; C22B19/16
Domestic Patent References:
| JP2000290736A | ||||
| JP2000301103A | ||||
| JP2009074132A |
Other References:
MATSUURA Hiroyuki 他2名,Fe2O3-ZnFe2O4-ZnO-PbO Mixture by Selective Chlorination and Evaporation Reactions,ISIJ International,日本,2006年 8月15日,Vol.46 No.8,Page.1113-1119
Attorney, Agent or Firm:
Manabu Kawamoto