Method for extracting manganese from electrolytic manganese waste residues or low-quality manganese ore by utilizing mechanochemical method and auxiliary agent thereof

• Main Authors: HAN FENGLAN, QI LIMIN, WANG HUI
• Format: Patent
• Language: Chinese; English
• Published: 10.10.2012
• 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 invention relates to a production process for extracting the manganese element by utilizing electrolytic manganese waste residues and a production process for extracting the manganese element by utilizing low-quality manganese ore, in particular to a method for extracting manganese from the electrolytic manganese waste residues or the low-quality manganese ore by utilizing a mechanochemical method and an auxiliary agent thereof. The method comprises the following steps of: adding the auxiliary agent with the weight percentage being 2.0-11.0% in the claim 1 or 2 in the electrolytic manganese waste residues or the low-quality manganese ore, fully and uniformly mixing, crushing till the diameter D 50 is 2-6mum, then carrying out heat extraction by using sulfuric acid with the weight 5-10 times that of the auxiliary agent for 2-4 times, and filtering to separate leaching liquor for producing the electrolytic manganese. The method has the advantages that the auxiliary agent is added in the treatment process of