Copperas is the industry name for Ferrous sulfate heptahydrate, iron sulfate, ferrous sulfate or simply referenced as iron salt that is recovered by the VanadiumCorp-Electrochem Process
Technology “VEPT”. Most conventional sources are produced as a natural by-product of the titanium dioxide (TiO2) manufacturing process and It can be used to produce animal feeds, cement, pigments,
and in bio-gas and water treatment applications.
Ferrous sulfate heptahydrate, commonly known as copperas, is a green, water soluble, acidic salt, produced during the VEPT or the manufacture of TiO2. A cost efficient source of iron, we supply this
secondary product to a variety of sectors, where it is put to good use in numerous chemical and industrial applications.
In the water treatment industry, ferrous sulfate heptahydrate can be used directly in water treatment plants to improve the coagulation and removal of elements such as phosphorus. In pigment production, copperas
is a useful source of iron. Water-soluble and easy to handle, it is commonly used to produce red, yellow and black iron oxide pigments. Cement producers also use ferrous sulfate heptahydrate – harnessing its
power to reduce chromium (VI) levels.
Ferrous sulfate heptahydrate can also be dried and oxidized to create other useful forms of iron.
When dried, copperas turns into ferrous sulfate thermal monohydrate. With a high concentration of iron (around 30%) this by-product can be used as a valuable supplement in animal feeds. In its oxidized form,
ferrous sulfate heptahydrate is a liquid source of iron that can be used in water treatment, biogas treatment and mining processes.