METHOD FOR PRODUCING ANHYDROUS METAL CHLORIDE

To provide a method for producing an anhydrous metal chloride that minimizes the emission of carbon dioxide gas into the atmosphere.SOLUTION: A method for producing an anhydrous metal chloride includes a chlorination step for heating metal oxide in a mixed gas of carbon monoxide gas and chlorine gas...

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1. Verfasser:	OISHI TOSHIHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS INORGANIC CHEMISTRY METALLURGY
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Zusammenfassung:	To provide a method for producing an anhydrous metal chloride that minimizes the emission of carbon dioxide gas into the atmosphere.SOLUTION: A method for producing an anhydrous metal chloride includes a chlorination step for heating metal oxide in a mixed gas of carbon monoxide gas and chlorine gas at a temperature of 300°C or higher and 1200°C or lower, to produce anhydrous metal chloride; and a gas reduction step for reducing the emission of carbon dioxide gas in the chlorination step, to produce carbon monoxide gas. The carbon monoxide gas produced in the gas reduction step is used in the chlorination step.SELECTED DRAWING: Figure 1 【課題】二酸化炭素ガスの大気放出を抑制した無水金属塩化物の製造方法を提供する。【解決手段】本発明の無水金属塩化物の製造方法は、一酸化炭素ガスと塩素ガスの混合ガス中で金属酸化物を３００℃以上、１２００℃以下に加熱し、無水金属塩化物を生成する塩素化工程と、塩素化工程で排出される二酸化炭素ガスを還元し、一酸化炭素ガスを生成するガス還元工程と、を備え、ガス還元工程で生成した一酸化炭素ガスが、塩素化工程で用いられる。【選択図】図１