Recovery of non-ferrous metals from dross.,申请号EP19880312108-传众专利搜索

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发明名称	Recovery of non-ferrous metals from dross.
摘要	<p>The invention relates to a method and apparatus for treating non-ferrous metal drosses in order to recover the free metal contained therein. The dross is heated by a plasma torch (40) in a rotary furnace (10), preferably to a temperature above 800 DEG C. The plasma heating and rotary motion make it possible to recover metal from the dross without employing the conventional salt bath. This means that the gases exiting the furnace can be treated more easily to remove pollutants and the solid residues can be discarded without risk of causing environmental pollution. By controlling the speed of rotation of the furnace (10), large dross lumps can be accommodated and so the conventional grinding and screening procedure of the dross can advantageously be eliminated.</p>
申请公布号	EP0322207(B1)	申请公布日期	1995.06.14
申请号	EP19880312108	申请日期	1988.12.21
申请人	ALCAN INTERNATIONAL LIMITED	发明人	DUBE, GHYSLAIN;HUNI, JEAN-PAUL;LAVOIE, SERGE;STEVENS, WESLEY D.
分类号	C22B7/04;C22B21/00;(IPC1-7):C22B7/04;C22B9/22	主分类号	C22B7/04
代理机构		代理人
主权项
地址

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