摘要
结合顶吹炉处理废旧电路板的渣型试验,通过FactSage软件,对顶吹炉处理废旧电路板的渣型确定过程进行理论分析,并绘制了理想渣型下的冶金相图。结果表明,顶吹炉处理废旧电路板渣型控制的重点在于Al_(2)O_(3)成分的控制,理想渣型为SiO_(2)-CaO-Al_(2)O_(3)-FeO四元渣型,各组分含量范围:SiO_(2)28%~35%、CaO 18%~25%、Al_(2)O_(3) 6%~13%、FeO 19%~20%,四元组分合计>80%。在理想渣型下,可实现溢流连续排渣,金属和渣分离彻底,Cu、Au、Ag总回收率均大于95%,平均渣含铜<0.7%。该渣型范围和相图理论可为各类熔池熔炼炉处理废旧电路板的渣型研究和生产实践提供理论依据。
Combined with slag type test of top-blowing furnace for treatment of waste circuit boards,FactSage software was used to theoretically analyze slag type determination process of top-blowing furnace for treatment of waste circuit boards,and metallurgical phase diagram under ideal slag type was drawn The results indicate that focus of slag type control for treatment of waste circuit boards in top blowing furnace lies in control of Al_(2)O_(3)composition.The ideal slag type is SiO_(2)-CaO-Al_(2)O_(3)-FeO quaternary slag type,and content of each component ranges from SiO_(2) of 28%to 35%,CaO of 18%to 25%,Al_(2)O_(3)of 6%to 13%,FeO of 16%to 20%and the total quaternary components are more than 80%.Under the ideal slag type,overflow and continuous slag discharge can be realized,metal and slag are separated completely,total recovery rate of Cu,Au,and Ag is all greater than 95%,and average copper content in slag is less than 0.7%.The slag type range and phase diagram theory can provide a theoretical basis for slag type research and production practice of various molten pool smelting furnaces for processing waste circuit boards.
作者
郭键柄
陈正
黄文
丁志广
GUO Jian-bing;CHEN Zheng;HUANG Wen;DING Zhi-guang(Lanzhou Engineering&-Research Institute of Nonferrous Metallurgy Co.,Ld.,Lanzhou 730000,China;CECEP(Shantou)Recycling Resources Technology Co.,Ltd.,Shantou 515157,Guangdong,China)
出处
《有色金属（冶炼部分）》
CAS
北大核心
2021年第11期15-20,共6页
Nonferrous Metals（Extractive Metallurgy)
基金
甘肃省创新基地和人才计划项目(20JR5RA083)
广东省科技计划项目(2017B020238001)。
关键词
顶吹炉
废旧电路板
渣型
相图
FactSage
top blowing furnace
waste circuit board
slag type
phase diagram
FactSage
