Method for recovering iron and copper from high-iron copper ore through modified magnetic separation-acid leaching

The invention discloses a method for recovering iron and copper from high-iron copper ore through modification, magnetic separation and acid leaching, which comprises the following steps of: firstly, carrying out dry grinding on the high-iron copper ore, then carrying out magnetizing roasting modifi...

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Bibliographische Detailangaben
Hauptverfasser:	LIU YUAN, LI YAOSHAN, WEN KAN, XU WENLONG, WANG HUATAI, GAO ZHAOWEI, ZHOU HUARONG, WANG CHAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY CRUSHING, PULVERISING, OR DISINTEGRATING CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL FERROUS OR NON-FERROUS ALLOYS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS METALLURGY MILLING GRAIN PERFORMING OPERATIONS PREPARATORY TREATMENT OF GRAIN FOR MILLING PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention discloses a method for recovering iron and copper from high-iron copper ore through modification, magnetic separation and acid leaching, which comprises the following steps of: firstly, carrying out dry grinding on the high-iron copper ore, then carrying out magnetizing roasting modification on mineral powder subjected to dry grinding, regrinding the modified mineral powder, and carrying out first-stage magnetic separation to obtain first-stage magnetic separation concentrate and first-stage magnetic separation tailings; carrying out second-stage magnetic separation on the first-stage magnetic separation concentrate to obtain fine iron powder and second-stage magnetic separation tailings; and the first-stage magnetic separation tailings and the second-stage magnetic separation tailings are subjected to acid leaching, the acid leaching condition is controlled, and copper leaching liquid and leaching residues are obtained. The method can comprehensively and efficiently recover iron and copper in i