Title:
DRY TYPE REFINING METHOD
Document Type and Number:
Japanese Patent JPH09263848
Kind Code:
A
Abstract:
To provide a dry type refining method which can efficiently remove copper from lead in a short time.
Antimony trisulfide (Sb2S3) in an amount of ≥5 times to the copper is added into the molten lead 3 containing the copper. Sb2S3 is decomposed into antimony Sb and sulfur S in the molten lead 3. The sulfur S produced by the decomposition is combined with copper Cu to produce copper sulfide (Cu2S) and the copper sulfide is floated up on the molten lead 3. The floated up copper sulfide together with the dross are removed from the molten lead 3 to remove the copper from the lead.
Inventors:
ARAI TAKAYUKI
HIRAKAWA TAKESHI
GOTO KENSUKE
HIRAKAWA TAKESHI
GOTO KENSUKE
Application Number:
JP6955796A
Publication Date:
October 07, 1997
Filing Date:
March 26, 1996
Export Citation:
Assignee:
SHIN KOBE ELECTRIC MACHINERY
International Classes:
C22B13/02; (IPC1-7): C22B13/02
Attorney, Agent or Firm:
Hidetoshi Matsumoto (1 outside)
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