What is the purpose of pyrite ore crushing when pyrite produces sulphuric acid?
Light yellow brass surface, often with yellow brown tarnish. Green black brown or black streak. Having a strong metallic luster. Opacity. No cleavage, fracture shape, hardness 6~6.5, relative density 4.9~5.2. Detection capability.Pyrite is a semiconducting mineral. Because of the substitution of unequal impurity components such as Co3 and Ni3 instead of Fe2 or [As]3 and [AsS]3 instead of [S2]2-, the electron heart (n type) or hole core (P type) is produced and has conductivity. Under the action of heat, the trapped electrons are easy to flow and directional, forming electron flow, generating thermoelectric EMFs, and having thermoelectric properties.
Pyrite (FeS2) is often mistaken for gold because of its pale yellow copper and bright metallic luster. It is also called "fool's gold"". The composition usually contains cobalt, nickel and selenium, and has a NaCl type crystal structure. The composition is the same as that of the orthorhombic (orthorhombic) system, called the white iron ore. Trace amounts of cobalt, nickel, copper, gold and selenium are often found in the composition. When the content is high, they can be recovered and utilized in the process of extracting sulfur.
Pyrite will smash pyrite when producing sulphuric acid to increase surface area and accelerate reaction.
