The assay result of that material is rich in iron. 化验结果表明那种物质含铁量丰富。
The problem of high iron content in zinc concen-trate can not be resolved by single floatation flowsheet because theiron content of sphalerite contaminated in pyrite is high. 由于东升庙硫铁矿共生闪锌矿的含铁量高,所以采用单一浮选流程不能解决锌精矿铁杂质含量高的问题。