Title:
【発明の名称】亜鉛湿式製錬から生じる残渣の処理方法
Document Type and Number:
Japanese Patent JP2572609
Kind Code:
B2
Abstract:
In conjunction with an electrolytic production of zinc, the residues are processed so that the residue is leached with cell acid at a temperature from 50 DEG to 100 DEG C. in such a manner that a concentration of free acid from 10 to 100 g/l is obtained at the end of the leaching. The undissolved matter is separated from the suspension, the separated matter is supplied to the acid leaching step performed in the electrolytic production of zinc, and fine-grained metallic iron is added to the solution from which the undissolved matter has been removed so that copper is precipitated. The precipitated copper is separated and the liquid phase from which the precipitated copper has been separated is supplied to one of the stages which precede the precipitation of iron in the electrolytic production of zinc.
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Inventors:
ADORUFU FUON RETSUPENATSUKU
BINFURIITO BEEMAA
GYUNTAA SUMIKARA
FUORUKAA BIIGANTO
BINFURIITO BEEMAA
GYUNTAA SUMIKARA
FUORUKAA BIIGANTO
Application Number:
JP25616187A
Publication Date:
January 16, 1997
Filing Date:
October 09, 1987
Export Citation:
Assignee:
RUUAACHINKU GMBH
International Classes:
C22B3/00; C22B3/04; C22B3/08; C22B3/44; C22B7/00; C22B7/02; C22B15/00; C22B19/00; C22B19/20; C22B19/30; C22B21/00; C22B41/00; C22B58/00; C25C1/14; C25C1/16; C25D1/16; C25C; (IPC1-7): C22B7/00; C22B3/04; C22B3/44; C25C1/16
Domestic Patent References:
| JP48007961A |
Attorney, Agent or Firm:
Tsuchiya Masaru