Title:
銅合金中の鉛除去方法
Document Type and Number:
Japanese Patent JP4599521
Kind Code:
B2
Abstract:
To provide a method by which lead removal can be attained while dispensing with expensive special equipment, without decreasing alloy components even in the case of a tin-containing copper alloy.
In the method for removing lead from a copper alloy, the copper alloy is melted and a tin-blocking agent is added to the resultant molten copper alloy to undergo mixing to inhibit tin in the copper alloy from being combined with a deleading agent. Subsequently, the deleading agent is added to undergo mixing, and the deleading agent is combined only with lead in the copper alloy and the resultant lead compound is floated and separated.
COPYRIGHT: (C)2006,JPO&NCIPI
Inventors:
Hirosaku Yamada
Shuichi Sueyoshi
Shunichi Nakamura
Takahiko Matsuda
Shuichi Sueyoshi
Shunichi Nakamura
Takahiko Matsuda
Application Number:
JP2004357575A
Publication Date:
December 15, 2010
Filing Date:
December 10, 2004
Export Citation:
Assignee:
Kyushu Tabuchi Co., Ltd.
Shuichi Sueyoshi
Kagoshima prefecture
Shuichi Sueyoshi
Kagoshima prefecture
International Classes:
C22B15/14; C22B9/10
Domestic Patent References:
| JP10140254A | ||||
| JP10102165A |
Attorney, Agent or Firm:
Yukio Murata
Kaoru growth
Yoshitaka Jinno
Kaoru growth
Hiromasa Ito
Kaoru growth
Yoshitaka Jinno
Kaoru growth
Hiromasa Ito