以硫酸铁和硫酸亚铁为主要原料，采用共沉淀法制备了氧化铁黑。考察了Fe³⁺与Fe²⁺的摩尔比、反应体系pH、反应时间和反应温度等因素对氧化铁黑制备的影响。结果表明，在Fe³⁺与Fe²⁺的摩尔比为1.31：1、反应体系pH为10.0、反应时间为1.0 h、反应温度为85℃的条件下，制得的氧化铁黑与标样的颜色差异最小，色差值ΔE为1.507。经XRD、FESEM分析表明，产品物相组成为Fe₃O₄，微观形态为大小不一、形状不规则的立方颗粒状，粒径分布约在100~500 nm范围内，产品各项指标均达到HG/T 2250-91中所规定的合格品标准。

Iron oxide black is prepared via co-precipitation method using ferric sulfate and ferrous sulfate as main raw materials.The effects of the molar ratio of Fe³⁺ to Fe²⁺,pH value of the reaction system,reaction time and reaction temperature on the preparation of iron oxide black are investigated.The results show that the chromatic aberration value (ΔE) between the prepared iron oxide black and standard sample is 1.507,the smallest,when the molar ratio of Fe³⁺ to Fe²⁺ is 1.31:1,the pH value is 10.0,reaction spends 1.0 h,and reaction temperature is at 85℃.The analysis by XRD shows that the phase composition of the product is Fe₃O₄.The characterization by FESEM indicates that the microstructure of the product is cubic granules with heterogeneous sizes and irregular shapes,and the particle size distribution is about in the range of 100 to 500 nm.All the indexes of the product can meet the qualified product standard in industrial standard HG/T 2250-91.

刘吉军(1992-),男,硕士研究生,研究方向为污染防治工程与技术,1264131326@qq.com。