Research on comprehensive recovery of iron from cyanide residue in Shandong
The main valuable element in the cyanide residue of a gold smelting plant in Shandong is iron,with an iron grade of 20.29%.Iron minerals mainly exist in the form of magnetite,limonite,and fersilicite.Due to the fine parti-cle size of the cyanide residue and the low theoretical iron content of limonite,beneficiation tests were carried out to obtain high-grade iron concentrates as much as possible.The experimental results show that the combined process of weak magnetic roughing-strong magnetic roughing-table cleaning can achieve the recovery and utilization of iron resources.If the weak magnetic concentrate,table middling,and table concentrate are combined,iron concentrates with iron grades of 59.27%and an iron recovery rate of 48.01%can be obtained.If the weak magnetic concentrate and table concentrate are combined,iron concentrate with an iron grade of 61.21%and an iron recovery rate of 46.66%can be obtained.
NETL
NSTL
万方数据
维普
