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METHOD OF RECOVERING HYDROCHLORIC ACID AND ZINC METAL FROM ELECTRIC ARC FURNACE DUST CONTAINED ZINC FERRITE
METHOD OF RECOVERING HYDROCHLORIC ACID AND ZINC METAL FROM ELECTRIC ARC FURNACE DUST CONTAINED ZINC FERRITE
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机译：从电炉炉渣含锌铁氧体中回收盐酸和锌金属的方法
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摘要
PURPOSE: Method of recovering hydrochloric acid and zinc metal from electric arc furnace(EAF) dust is provided which is simple for recovering directly a hydrochloric acid and a zinc by electro-deposition and cost low by applying high current density at the membrane and low current density at the anode. CONSTITUTION: A method of recovering comprises the steps of: hot acid leaching which makes zinc ferrite leached in a solution having a hydrochloric acid with concentration of about 37g/l to 74g/l and a ZnCl2 with concentration of about 104g/l-270g/l at 80C or more; purifying an iron, an organic matter and a heavy metal which is dissolved in the zincchloride solution by reacting at the leaching step; recovering a zinc by electro-depositing the purified zincchloride solution in an electro-deposition cell equipped cation exchange membrane being anode current density of 300-1000A/m2 and membrane current density of 750-2000A/m2 at not more than 40C.
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机译：目的：提供一种从电弧炉粉尘中回收盐酸和锌金属的方法，该方法易于通过电沉积直接回收盐酸和锌，并且通过在膜上施加高电流密度和低电流来降低成本阳极密度。组成：一种回收方法，包括以下步骤：热酸浸法，使铁素体锌浸在盐酸浓度约为37g / l至74g / l的溶液和ZnCl2浓度约为104g / l-270g / l的溶液中l在80°C或更高温度下;通过在浸出步骤中反应来纯化溶解在氯化锌溶液中的铁，有机物和重金属;通过在具有不大于40℃的阳极电流密度为300-1000A / m 2且膜电流密度为750-2000A / m 2的配有电沉积池的阳离子交换膜中电沉积纯化的氯化锌溶液来回收锌。
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