It discusses the technology including cyanidation, flotation cyanidation and pretreatment cyanidation etc.
探讨过的工艺包括氰化、浮选—氰化和预处理—氰化等。
The second was that cyanidation after alkali leaching was followed by flotation of cyanide residue.
比较结果表明，采用碱浸预处理后氰化、氰渣浮选工艺经济效益更好。
Based on the properties, a combined flowsheet of flotation-roasting in air -cyanidation-active carbon absorption was developed. The overall recovery of Au is of 83. 91%.
依据矿物学特性，提出了“原矿浮选— 精矿氧化焙烧— 氰化浸金— 活性炭吸附金”的选冶联合工艺流程，金选冶总回收率达83．91％。
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