DROSS TREATMENT IN A ROTARY ARC FURNACE WITH GRAPHITE-ELECTRODES

被引：16

作者：

DROUET, MG

HANDFIELD, M

MEUNIER, J

LAFLAMME, CB

机构：

[1] Labratoires des Technologies Électrochimiqes et des Électrotechnologies (LTEE), Hydro-Quebec

来源：

JOM-JOURNAL OF THE MINERALS METALS & MATERIALS SOCIETY | 1994年 / 46卷 / 05期

关键词：

D O I：

10.1007/BF03220691

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Aluminum baths are always covered with a layer of dross resulting from the aluminum surface oxidation. This dross represents 1-10% of the melt and may contain up to 75 wt.% aluminum. Since aluminum production is highly energy intensive, dross recycling is very attractive from both energy and economic standpoints. The conventional recycling process using salt rotary furnaces is thermally inefficient and environmentally unacceptable because of the production of salt slags. Hydro-Quebec has developed a new technology using a rotary arc furnace with graphite electrodes. This process provides aluminum recovery rates of 80-90%, using a highly energy efficient, environmentally sound production method.

引用

页码：26 / 27

页数：2