Novel neutralization process in preparation process for electrolytic manganese dioxide

The invention discloses a novel neutralization process in a preparation process for electrolytic manganese dioxide. The novel neutralization process comprises the following steps: mixing manganese carbonate ore powder particles and concentrated sulfuric acid in a weight ratio of 1: (0.5 to 0.65), an...

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Bibliographische Detailangaben
Hauptverfasser:	LUO SONGGUI, HU SHUANGQUAN, WU YUPING, DAI HAITAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS THEREFOR CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS 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
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Beschreibung
Zusammenfassung:	The invention discloses a novel neutralization process in a preparation process for electrolytic manganese dioxide. The novel neutralization process comprises the following steps: mixing manganese carbonate ore powder particles and concentrated sulfuric acid in a weight ratio of 1: (0.5 to 0.65), and obtaining ore pulp containing manganese sulfate and having a pH value of greater than 2 after heating, stirring and carrying out manganese leaching for 8h; then adding manganese oxide ore powder in the ore pulp containing manganese sulfate to remove impurities potassium and iron; then adding a neutralizer and carrying out secondary pressing-filtering; adding a vulcanizing agent in manganese sulfate solution to settle heavy metals, carrying out tertiary pressing-filtering, then adding a molybdenum removal additive and carrying out quartus pressing-filtering to obtain manganese sulfate filtrate; and finally carrying out static settlement and filtering on the manganese sulfate filtrate, taking the solution and carry