WHAT IS THE DIFFERENCE BETWEEN PRIMARY AND SECONDARY ALUMINIUM?
lolitahe69 > 11-26-2021, 06:20 AM
Secondary Production is the process of recycling aluminum scrap into aluminum that can be used again—an environmentally sound process that is 92% more energy efficient than primary production.
Primary production involves making aluminum products from raw material or ingots, which is highly energy intensive, especially electricity intensive. Secondary production involves recycling aluminum scrap to form new products, a significantly less energy-intensive process.
Which gives the name ‘Secondary Aluminium’ that is mainly made from scrap. Such ingot may include a proportion of primary aluminium if the right grade of scrap is in short supply.
Over 70% of secondary aluminium is consumed in the manufacture of castings, the remainder being used as deoxidizing material in steel-making and as a hardener in the production of other non-ferrous metals; small quantities are also used for forgings and the manufacture of aluminium powder.