METHOD FOR PRODUCING METAL

To provide a method for producing metals that can cope with a reduction of production of metals while keeping power consumption at a relatively low level.SOLUTION: A method for producing metals is to produce metals by molten salt electrolysis. In the method, an electrolysis device 1 is used that inc...

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Bibliographische Detailangaben
1. Verfasser:	NAMIKI KOKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	APPARATUS THEREFOR CHEMISTRY ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Zusammenfassung:	To provide a method for producing metals that can cope with a reduction of production of metals while keeping power consumption at a relatively low level.SOLUTION: A method for producing metals is to produce metals by molten salt electrolysis. In the method, an electrolysis device 1 is used that includes an electrolytic cell 2 to store molten salt bath inside and two or more sets of electrodes 3 including an anode 3a to be brought into contact with the molten salt bath and a cathode 3b; in at least one period from the start of use of the electrolysis device 1 to a lapse of 30 months, application of voltage to at least one pair of electrodes 3 out of the two or more sets of electrodes 3 is stopped; and the current density at the remainder of the electrode 3 is controlled to 0.5 A/cm2 or more.SELECTED DRAWING: Figure 1 【課題】消費電力を比較的小さく抑えつつ、金属の減産に良好に対応することができる金属の製造方法を提供する。【解決手段】この発明の金属の製造方法は、溶融塩電解により金属を製造する方法であり、内部に溶融塩浴を貯留させる電解槽２と、溶融塩浴に接触させる陽極３ａ及び陰極３ｂを含む二組以上の電極３とを備える電解装置１を使用し、前記電解装置１の使用開始から３０か月が経過するまでの間の少なくとも一時期に、二組以上の電極３の一部であって少なくとも一組の電極３間への電圧の印加を停止し、前記電極３の残部での電流密度を０．５Ａ／ｃｍ2以上とするというものである。【選択図】図１