ere yog ob txoj kev dav dav ntawm lub ntiaj teb tsis tshua muaj hlau metallurgy, uas yog hydrometallurgy thiab pyrometallurgy. Hydrometallurgy belongs rau cov tshuaj metallurgy txoj kev, thiab tag nrho cov txheej txheem yog feem ntau nyob rau hauv kev daws thiab hnyav. Piv txwv li, lub decomposition ntawm tsawg ntiaj teb concentrates, sib cais thiab extractio ...
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