Title:
向流リーチングによる亜鉛回収方法
Document Type and Number:
Japanese Patent JP4511519
Kind Code:
B2
Abstract:
The invention relates to method for leaching zinc-containing materials in connection with the electrolytic recovery of zinc. According to this method, the feed materials i.e. zinc calcine and zinc sulphide, are leached in three stages, in which he sulphuric acid content of the stages rises in accordance with the direction in which the solids are moving. The solids and solution formed in the leaching stages are routed throughout the process countercurrently in relation to each other.
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Inventors:
Jarbinen, Aimo
Lahtinen, Marco
Takara, Heikki
Lahtinen, Marco
Takara, Heikki
Application Number:
JP2006502070A
Publication Date:
July 28, 2010
Filing Date:
February 24, 2004
Export Citation:
Assignee:
OUTOKUMPU TECHNOLOGY OY
International Classes:
C22B19/20; C22B3/04; C22B3/08
Domestic Patent References:
JP9501986A | ||||
JP2001214224A | ||||
JP790404A |
Attorney, Agent or Firm:
Takao Katori