| 简介 |
Disclosed herein is a method involving the steps of : a) mixing a first pond coal fly ash and a first ionic liquid, thereby leaching germanium from the first pond coal fly ash and producing a second pond coal fly ash and a first mixture comprising the first ionic liquid and the leached germanium : fa) separating the first mixture from the second pond coal fly ash; and c) mixing a first brine with the second pond coal fly ash, thereby leaching iron and one or more rare earth elements from the second pond coal fly ash and producing a third pond coal fly ash and a second mixture comprising the first brine and the leached iron and one or more rare earth elements. |
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