Pickling廢液으로부터 磁性 Ferrite의 原料가 되는 酸化鐵의 製造 = On Production of α-Fe_2O_3 as a Raw Material of Ferrite from the Waste Picklic Solution

다국어 초록 (Multilingual Abstract)

The production of a-Fe2O_3 from the waste picklic solution has been investigated. Anhydrous iron chloride can be obtained by the dehydration of waste picklic solution in dried nitrogen gas, and a-Fe_2O_3 was produced by the oxidation of anhydrous iron chloride under the various conditions: the oxidation reaction temperature, the air flow rate, the water content, and the evaporation temperature of anhdrous iron chloride.
The experimental results are summarized as following; The dehydration temperature in iron chloride obtained from waste picklic solution is 210℃.
The formation of a-Fe_2O_3 from anhydrous iron chloride in using dry air is that the reaction temperature is 700℃ and air flow rate is below 3l/min.
Pure a-Fe_2O_3 single phase can be obtained at 500℃ by adding water of 2.2v/o to the air.
The fine and uniform particles are obtained as reaction temperature, the water content in air, and vaporization temperature decrease. However the air flow rate is not so effective on it.

목차 (Table of Contents)

• Ⅰ. 緖 論
• Ⅱ. 試料 및 寶驗方法
• Ⅲ. 結果 및 考察
• Ⅳ· 結 果