Ball mills are used to reduce the ore to a fine powder, mixed with water and ... but froth flotation is quite common in metal refining; we’ve seen it used to concentrate everything from ...

As Contra Costa County Fire and Martinez Refining Company investigators sift through the damage, refinery workers have ...

The metals refining company Nth Cycle builds systems that yield nickel and cobalt from a form of shredded lithium ion ...

"We shall receive for refining scrap metal and non-ferrous metals, which is absolutely new to us." The Krastsvetmet Refinery is the world’s biggest producer of refined platinum group metals ...