氢氧化氧铁的制备及其催化性能研究

Study on Preparation and Catalytic Properties of Iron Oxide Hydroxide

以FeCl^3为原料、以NaOH作沉淀剂,采用3种快速沉淀方法制备了氢氧化氧铁催化剂。其中将FeCl3溶液滴加至NaOH溶液中制备的催化剂A,将FeCl3溶液和NaOH溶液并流滴加制得的催化剂C均具有较高活性。将NaOH溶液滴加至FeCl^3溶液,制得的催化剂B活性较差。催化剂A和C也具有较好的重复使用性。催化剂A的适宜干燥温度是170℃左右。

Iron oxide hydroxide catalysts were prepared from iron chloride solution and sodium hydroxide solution by three methods.Catalyst A prepared by dropping iron chloride solution to sodium hydroxide solution catalyst C prepared by codropping iron chloride solution and sodium hydroxide solution to beaker,the two catalysts show better catalytic properties than catalyst B prepared by dropping sodium hydroxide solution to iron chloride solution.Catalyst A and C also show good reusability. The optimum drying temperature of catalyst A is about 170℃