METHOD FOR MANUFACTURING SUPERFINE PARTICLE OF TRIMANGANESE TETRAOXIDE

PROBLEM TO BE SOLVED: To provide a method for inexpensively, efficiently and safely manufacturing superfine particles of trimanganese tetraoxide having a sharp grain size distribution. SOLUTION: The method for manufacturing the superfine particles of the trimanganese tetraoxide consisting of partiti...

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Bibliographische Detailangaben
Hauptverfasser:	YAMADA AKIFUMI, HIROTA KAZUO, TANAKA CHIKAFUMI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ELECTRICITY INORGANIC CHEMISTRY MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES METALLURGY NANOTECHNOLOGY PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for inexpensively, efficiently and safely manufacturing superfine particles of trimanganese tetraoxide having a sharp grain size distribution. SOLUTION: The method for manufacturing the superfine particles of the trimanganese tetraoxide consisting of partitioning an electrolytic cell with an ion exchange membrane to provide the cell with an anode chamber and a cathode chamber, using a manganese-containing aqueous solution for an anode chamber catholyte, passing electricity between the anode and the cathode to migrate manganese ions through the ion exchange membrane from the anode side to the cathode side and oxidizing the product deposited in the cathode chamber, in which the pH of the cathode chamber electrolyte is regulated to 9 to 11 and bubbling is execute by gas containing 10 to 70 vol.% oxygen.