钛白副产硫酸亚铁制取云母氧化铁颜料的研究

Study On Preparing Micaceous Iron Oxide Pigments From Ferrous Sulfate Byproduced In The Production Of Titanium

对以钛白副产硫酸亚铁为原料、利用水热法生产云母氧化铁颜料的工艺进行了研究 .利用XRD和SEM对产品进行了分析 ,得出了反应介质浓度 ,结晶温度和结晶时间对结晶反应和产品的影响规律 .采用H2 O2 为氧化剂 ,氨水为沉淀剂生成前驱物Fe(OH) 3,NaOH碱液为水热反应介质 ,解决了SO2 - 4的去路问题 。

The preparing process of micaceous iron oxide pigments was studied by the hydrothermal method from the ferrous sulfate by produced in the production of titanium dioxide.XRD and SEM were used to analyze the product.The law that the reactive medium,hydrothermal temperature and reaction time influenced the crystallization and the characteristics of product was obtained.H 2O 2 was used as oxidizing agent,ammonia water was used as precipitate to born precursor Fe(OH) 3 and NaOH alkali liquid was used as reactive medium.The preparing process handled the question of SO 2- 4,and made the reactive medium be recycled.