摘要
对锌焙砂进行还原焙烧,再对还原焙砂进行浸出。浸出温度70～80℃;pH值2～3;液固比6∶1;浸出时间2 h。对比试验得到最佳还原焙烧的温度900℃、焙烧时间60 min、粉煤配比1∶10。这时锌的浸出率达到90%左右,铁浸出率15%左右。再对浸出渣磁选,得到了铁精矿。
Zinc calcine is reduction roasted and then the reducing calcine is leached. The leaching temperature is 70 - 80℃ , pH value is 2 - 3, and leaching ＇time is 2h. The comparing experiments show that the best reduction temperature is 900℃ and roasting time is 60rain, with pulverized coal proportion as 1： 10. Under this condition, the zinc leaching rate can reach about 90% and the iron leaching rate can reach about 15%. The leaching slag is treated by magnetic separation, and iron concentrate is obtained.
出处
《矿冶》
CAS
2011年第3期76-78,共3页
Mining And Metallurgy
关键词
锌焙砂
还原焙烧
浸出
浸出率
铁精矿
zinc calcine
reduction roasting
leaching
leaching rate
iron concentrate
