NEW RECYCLING METHOD FOR GRINDING SLUDGE FROM THE PRODUCTION OF PERMANENT MAGNETS (ALNICO)

被引:0
|
作者
Kania, Harald [1 ]
Nowacki, Krzysztof [1 ]
机构
[1] Silesian Tech Univ, Fac Mat Engn & Met, Katowice, Poland
关键词
Steel; grinding dust; new recycling method;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In the grinding process of steel products, considerable amounts of grinding dust are generated, polluted with coolant (oil, oil emulsions), and non-metallic material from abrasive (silicon carbide, aluminum oxide and others). Grinding sludge generated as a result of this mechanism is a valuable source of post-industrial waste containing, apart from iron, such alloying elements as: cobalt, nickel, copper, tungsten, molybdenum, and vanadium. Considering the metallurgical value of grinding sludge, a method for recovering these elements from the sludge has been developed. The article presents a recycling method in a three-stage technological process consisting of sludge de-oiling, sintering, and re-melting in an electrical furnace.
引用
收藏
页码:136 / 142
页数:7
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