Abstract
Bubbles, in general, are widely applied for different industrial sectors, e.g., in the froth flotation, in aluminum foaming and even to control the creaminess of food. In the ironworks, gas bubbles are typically injected into the liquid steel aiming at the slag foaming in Electric Arc Furnaces (EAF) and for the secondary metallurgy. Nowadays, iron and steelmaking are driven by sustainabil…