用钛白废渣七水硫酸亚铁生产聚合硫酸铁

硫酸法钛白粉排放大量FeSO4.7H2O废渣,目前主要用其生产铁黑、铁黄、铁红等铁系颜料及FeSO4.H2O饲料。但由于铁系颜料及FeSO4.H2O饲料的国内、国际市场容量有限,FeSO4.7H2O废渣的处理已成为我国硫酸法钛白粉快速发展的瓶颈之一。聚合硫酸铁是一种新型无机高分子絮凝剂,广泛用于各种工业污水的混凝净化处理,市场容量很大。利用钛白粉废渣作为原料,经过精制,将废渣所含的氧化钛回收返回钛白粉生产线,利用高效、节能、成熟的工装设备,采用催化及直接氧化法生产高质量的液体聚合硫酸铁,具有很好的经济效益和环境效益。

Producing polymeric ferric sulfate from copperas by-products from titanium dioxide

Titanium dioxide production processes in sulfuric acid method emit large quantities of copperas waste residue.At present,it is primarily used for production of iron series pigments such as iron oxide black,iron oxide yellow,iron oxide red,and the ferrous sulphate monohydrate feed.Because of domestic and international market capacity of iron series pigments and the ferrous sulphate monohydrate feed is not much enough,the treatment of the copperas waste residue has become one of the bottleneck of the rapid development of titanium dioxide production by sulfuric acid method in China.Polymeric ferric sulfate is a new type of inorganic polymer flocculant,it is widely used in flocculation treatment of various industrial wastewater.The market capacity is large.Extensive use of titanium dioxide waste residue as raw materials,recycles titamium oxide contains in the waste residue after refining and returns to the titanium dioxide production line,produces the high quality liquid folymeric ferric sulfate by catalytic and direct oxidation method with efficient,energy-saving,sophisticated equipment.It has good economic benefit and environmental benefit.