七水硫酸亚铁

采用七水硫酸亚铁、硫酸、氯酸钠等原料，通过氧化、水解、聚合反应，制备了改性聚合硫酸铁脱色剂。

The main contents of experiment as following : ( 1 ) Modified polymerized ferric sulphate decoloring agent is made through oxidation , hydrolyzation , polymerization with ferrous sulphate heptahydrate , sulphate acid , natrium chlorate etc.

产品是以硫酸法生产钛白副产物七水硫酸亚铁和工业级的碳铵为原料，通过添加适宜的表面活性剂，调节适宜的pH值，在超声波作用下经沉淀-氧化反应合成。

With the action of ultrasonic in the process of the oxygenation reaction , the products were prepared from raw materials of industry byproduct ferrous sulfate and industry grade ammonium bicarbonate .

以七水硫酸亚铁为原料，采用改良二步复分解法新工艺制硫酸钾。

A new producing technology of potassium sulfate from ferrous sulfate is reported .

由三种废料制备饲料级七水硫酸亚铁

Preparation of Feed Grade Ferrous Sulfate with Wastes

结果表明，含Cr6＋碱性废水中加入七水硫酸亚铁直接处理，处理后的废水可达排放标准。

The result showed that the basic waste water containing Cr6 + could be treated directly by adding copperas . The treated waste water meets the discharge standard .

固体聚合硫酸铁便于储存和运输，目前的生产方法是由七水硫酸亚铁制取液体聚合硫酸铁，再经浓缩、干燥而得，但是浓缩、干燥过程耗能较大。

At the present , the SPFS is produced from liquid PFS ( LPFS ) that was from ferrous sulfate septihydrate by concentrating and drying , but the energy consumption is larger in the process .