摘要
研究了采用回转短窑对硫铁矿烧渣进行焙烧以回收有价金属的方法,考察了不同的工艺条件对硫铁矿烧渣焙烧的影响。研究结果表明:在还原温度在1 250℃下、还原时间为60min下,硫铁矿烧渣得到充分的还原。金、银、铜、铅、锌的挥发率中试分别达到93.26%,82.20%,82.55%,88.53%和83.48%,此时球团的硬度可以达到2 100N。
The roasting method was used to recover valuable metals from pyrites cinder in rotary kiln, and the influences of different process conditions on roasting pyrite cinder were examined. The results show that the pyrite cinder can be fully reduced under the conditions of reaction temperature at 400℃ and reaction time for 60 minutes. The volatilizing rates of gold, silver, copper, lead and zinc in pilot scale experiment can reach 93.26%, 82.20%, 82.55%, 88. 53% and 83.48%, respectively. Hardness of the pellets can reach 2100 N at this time.
出处
《有色矿冶》
2015年第5期32-34,共3页
Non-Ferrous Mining and Metallurgy
关键词
硫精矿烧渣
球团硬度
挥发率
还原温度
sulfur concentrate cinder
pellets hardness
reduction temperature
the volatilization rate
