Title:
酸化亜鉛焼鉱の製造方法
Document Type and Number:
Japanese Patent JP5565354
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a zinc oxide sintered ore which is low in grade of chlorine, fluorine and lead from zinc-containing iron and steel dust generated in a manufacturing process for iron and steel and is suitable for electrolytic refining, and to provide a method for manufacturing a zinc oxide sintered ore which can effectively take out and recover the zinc and the lead from the dust or drainage-treating deposition containing the zinc and the lead generated during the process.SOLUTION: The chlorine is removed by applying the wet processing to crude zinc oxide recovered by volatilization in a reducing roasting furnace and the remaining chlorine, fluorine and lead are volatilized by applying the heat treatment with a drying-heating furnace. Further, the lead is recovered with a form which can effectively be used, from the dust containing the zinc and the lead generated in the drying-heating furnace, and the deposition after recovery is applied to the drainage treatment together with waste fluid containing the zinc and the lead generated during the process and the obtained drainage-treating deposition is returned into the reducing roasting furnace and thus, valuables are recovered.
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Inventors:
Kudo Mano
Atsushi Kaikake
Hiroshi Watanabe
Fujiyama
Atsushi Kaikake
Hiroshi Watanabe
Fujiyama
Application Number:
JP2011064976A
Publication Date:
August 06, 2014
Filing Date:
March 23, 2011
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
B09B3/00; C22B19/34; C01G9/02; C02F1/52; C02F1/58; C22B1/00; C22B1/02; C22B7/02; C22B19/30; C22B13/00
Domestic Patent References:
| JP2002326814A | ||||
| JP2012513536A | ||||
| JP2000192165A | ||||
| JP6212289A | ||||
| JP2009144213A | ||||
| JP2001348627A |
Other References:
IKEDA K 他2名,Production of zinc oxide for zinc smelting process from steelmaking dusts at Shisaka Works.,Zinc 85 ,日本,1985年,Page.783-795
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Hayashi Ichiyoshi
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