杂铜阳极泥浸出渣电炉还原熔炼渣型研究.doc

杂铜阳极泥浸出渣电炉还原熔炼渣型研究.docdoi:.1007-
杂铜阳极泥浸出渣电炉还原熔炼渣型研究
孙安平,沈强华,陈雯,马涛
(昆明理工大学冶金与能源工程学院,昆明 650093)
摘要:采用一种新的联合法处理工艺处理杂铜阳极泥,主干流程由杂铜阳极泥焙烧—硫酸溶浸—滤渣电炉还原熔炼—铅锡合金电解—焊锡阳极泥中回收贵金属工序组成。电炉还原熔炼采用非铁渣系,重点研究了熔渣的物性和渣型的选择。
关键字:杂铜;阳极泥;电炉熔炼;炉渣
中图分类号:TF812;TF534 文献标志码:A 文章编号:1007-7545(2015)03-0000-00
Study on Slag Type of Reduction Smelting in Electric Furnace for Scrap Copper Anode Slime Leached Residue
SUN An-ping, SHEN Qiang-hua, CHEN Wen, MA Tao
(Faculty of Metallurgical and Energy Engineering of Kunming University of Science and Technology, Kunming 650093, China)
Abstract:A bination treatment process was applied to treat scrap copper anode slime. Main processes include roasting of copper anode slime, sulfuric acid leaching, reducing smelting of leached residue in electric furnace, electrolysis of tin-lead alloy, recovery of precious metal from soldering anode slime. Non-ferrous slag system was used in electric furnace. The properties of slag and selection of slag type were studied in detail for industrial production.
Key words: scrap copper; anode slime; electric furnace smelting; slag
二次铜资源通过熔炼获得粗铜,粗铜电解产出电解铜的过程中,副产的杂铜阳极泥富集了金、银和铅、锡等诸多有价元素[1]。杂铜阳极泥由于锡、铅含量高,含硫酸钡高,沿用铜阳极泥处理的湿法工艺[2-3]或者顶吹转炉等都面临困难;锡、铅行业现行的阳极泥处理流程也不完全适合处理杂铜阳极泥,因为两种阳极泥的成分和物相差别很大。有色金属冶炼行业现行生产上使用的阳极泥处理流程[4]中没有哪一个可以直接引用来处理杂铜阳极泥。
杂铜阳极泥含有金、银、锡、铜、铅、锑、镍、硒、铂、钯、钡和***等元素。选择回收工艺流程的依据是产品形态、金属的回收率、设备投资、加工成本、工艺的稳定性和适应性、“三废”排放、作业过程的安全与清