摘要
利用钛白废酸和废铁屑制备了无机高分子絮凝剂聚合硫酸铁。详细研究了聚合硫酸铁制备过程中各因素对亚铁氧化、三价铁水解和聚合等过程的影响。确定了制备聚合硫酸铁的最佳工艺条件为: (1)氧化过程:pH为1. 5,氧化剂与亚铁的物质的量之比为0. 3,氧化温度为60℃,氧化时间为3h; (2)聚合过程:硫酸根与全铁的浓度比为1. 4,陈化时间为2h。
The study on the preparation of polyferric sulfate using waste acid from making titanium dioxide and scrap iron is introduced. The optimum technology conditions are confirmed. During the oxidating, the pH is 1.5, the mole ratio of iron to oxidant is 0.3 and the oxidation temperature and time are 60 ℃ and 3 h,respectively. During the polymerizing, the ratio of c_(SO_4^(2+))/c_(Fe_t) is 1.4 and the aging time is 2 h.
出处
《无机盐工业》
CAS
北大核心
2005年第4期41-43,共3页
Inorganic Chemicals Industry
关键词
钛白废酸
废铁屑
聚合硫酸铁
waste acid from making titanium dioxide
scrap iron
polyferric sulfate
