Title:
錫含有銅の処理方法
Document Type and Number:
Japanese Patent JP5726618
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a treatment method of a tin inclusion copper that can efficiently remove tin from the tin inclusion copper.SOLUTION: A copper metal containing tin is fed in an oxidizing furnace with a tin removing agent and a solvent, and is melted while feeding an oxygen-containing gas, the tin is selectively made to float as a slag, the slag is removed, and high purity of at least 96 mass% of copper is obtained. The copper metal contains 1-8 mass% of tin, and the tin removing agent is a sodium carbonate, and the solvent is silica sand and lime stone. The molten metal temperature in the tin oxidation stage is regulated at 1,200°C-1,270°C by feeding the tin inclusion copper as a cold charge.
Inventors:
Kazuaki Miyamoto
Kazuya Takahashi
Hiroshi Miyanaga
Numata Makoto
Kazuya Takahashi
Hiroshi Miyanaga
Numata Makoto
Application Number:
JP2011098557A
Publication Date:
June 03, 2015
Filing Date:
April 26, 2011
Export Citation:
Assignee:
jx Nippon Mining & Metals Co., Ltd.
International Classes:
C22B15/14; C22B7/00; C22B9/10; C22B25/02
Domestic Patent References:
| JP2005042162A | ||||
| JP10147821A | ||||
| JP1268824A | ||||
| JP5271818A | ||||
| JP2001234260A | ||||
| JP2004323886A | ||||
| JP11128875A | ||||
| JP9078151A |
Attorney, Agent or Firm:
Shuhei Katayama