发明申请
US20120234138A1 METHOD OF RECOVERING GOLD FROM DILUTE GOLD SOLUTION 有权
从稀土金解决方案回收金的方法

METHOD OF RECOVERING GOLD FROM DILUTE GOLD SOLUTION
摘要:
Disclosed is a method of recovering gold from an aqueous solution having a gold concentration of 10 mg/L or lower, using a plurality of extraction apparatuses for bringing the aqueous solution into contact with an extraction agent, arranged to configure a multi-stage extraction process, the method allowing the aqueous solution to continuously flow from the first-stage extraction process to the next-stage extraction process, while recycling the extraction medium used in each stage twice or more times for the extraction process of the same stage, without back extraction and reduction.
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