Synchronized production method of reducing leaching and oxidizing deironing of cobalt-copper ore

• Main Authors: SHEN ZHEHAO, WANG SONGHUI, SHI DONGFENG
• Format: Patent
• Language: Chinese; English
• Published: 24.04.2013
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; FERROUS OR NON-FERROUS ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The present invention discloses a synchronized production method of reducing leaching and oxidizing deironing of cobalt-copper ore, including the following steps: crushing and mixing the cobalt-copper ore into cobalt copper slurry, then adding sulfuric acid into the cobalt-copper slurry for leaching with a temperature controlled at 75-85 DEG C, stirring while adding a reducing agent for reducing leaching with an amount of 4-6% of the total cobalt-copper ore, controlling cobalt content in wet residue to be less than 0.2% and copper content less than 0.3%, controlling of the reaction temperature to be 90-95 DEG C and reaction time being 1 to 4 hours, slowly adding alkali to adjust the PH value of the solution to 2.0-3.5, at the same time slowly supplementarily adding cobalt copper slurry for oxidizing deironing according to the content of Fe2+ in solution to make Co3+ and Fe2+ to reach a equilibrium state, and finally performing the solid-liquid separation to obtain qualified leachate. According to the inventio