REGENERATION METHOD OF DECOPPERING SOLUTION FROM BACTERIAL LEACHING INSTALLATION

The process comprises treatment with Fe turnings contg. up to 25 g/l of Fe(2+) and then with a mixt. of air and ozone. The mixt., in the presence of Tiobacillus ferroxidans bacteria, accelerates the rate of oxidn. of Fe(2+) to Fe(3+). Also, the ferric hydroxide from hydrolysis of Fe(3+) is sepd. fro...

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Bibliographische Detailangaben
Hauptverfasser:	KOVACS SZUSZANA, RO, BARRA OTTO, RO, ILIE PARASCHIV, RO, BACIU DORINA, RO, RACZ STEFAN, RO, BIVOLARU MARIN, RO, OROS VASILE, RO
Format:	Patent
Sprache:	eng ; rum
Schlagworte:	CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The process comprises treatment with Fe turnings contg. up to 25 g/l of Fe(2+) and then with a mixt. of air and ozone. The mixt., in the presence of Tiobacillus ferroxidans bacteria, accelerates the rate of oxidn. of Fe(2+) to Fe(3+). Also, the ferric hydroxide from hydrolysis of Fe(3+) is sepd. from the system by flotation, and is used as anionic collector of Na lauryl sulphate. The clear soln. is passed to the bacteria cultivator to attain optimum concn. during bacterial leaching of the cupriferous ores.