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Copper recycling from industrial waste by matte smelting

被引：0
|
作者：
Asai, K [1 ]
Kawasaki, Y [1 ]
Hino, J [1 ]
机构：
[1] Nippon Min & Met Co Ltd, Minato Ku, Tokyo 105, Japan
来源：
EPD CONGRESS 1997 | 1997年
关键词：
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Hitachi Refinery of Nippon Mining & Metals Co., Ltd. installed a reverberatory type recycling furnace in 1978 in order to treat the industrial wastes which contain metal elements such as copper, gold and silver. Pyrite and industrial waste materials such as galvanizing sludge, hydroxide slime and dust are smelted. Sulfidized copper, iron and precious metals are transformed into matte and other metallic elements are oxidized into slag. This copper matte is transported to Saganoseki smelter and copper and precious metals in the matte are recovered. Recently it is difficult to obtain pyrite economically because of the decrease of pyrite production. Therefore, a new treating process of the liquid waste has been investigated at Hitachi Refinery. In this process, the sulfide or sulfate from the liquid waste are smelted as a source of sulfur.
引用
收藏
页码：523 / 532
页数：10
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