由钛白副产粗FeSO4制备高纯硫酸亚铁的工艺研究

摘要

High purity crystals of ferrous sulfate was prepared from the coarse material by-product in in-dustrial titanium dioxide. The results indicated that the optimum conditions were as follows:water∶crude FeSO4 was 1. 4∶1(mL/g),at temperature 55℃,85% of the settlement agent concentration,reaction tem-perature was 65 ℃ under reaction time 45 min and the yield of product was 68 . 44%.%以工业钛白副产品粗硫酸亚铁为原料,制备高纯七水硫酸亚铁晶体。结果表明,最佳制备条件为：水与粗FeSO4比为1.4∶1(mL/g),溶解温度55℃,沉降剂磷酸浓度85%,反应温度65℃,反应时间45 min,产率可达68.44%。