Aluminum is among the three most common metal in the earth's crust. Production of usual primary aluminum is carried out through processing of aluminum oxide (Al2O3). Aluminum oxide, in its turn, is prepared by a multistage physicochemical treatment of obtained bauxites, nephelines, alunites, which contain aluminum particles.
Process of preparation consists of several stages. During the first stage aluminum oxide is subjected to grinding processing, followed by the more direct extraction of aluminum oxide to remove unwanted impurities. The purified material is subjected to electrolysis during which it melts and under the constant current is divided into its constituent parts. The result of these processes is aluminum itself, which makes usually a quarter of the mass of initially obtained mineral.
To produce 1 kg of primary aluminum it is necessary to spend at an average 20 kilowatt-hours of electricity and about 2 kg of aluminum oxide. In conditions of rising prices on energy producing materials, high energy costs that are inevitable at the present level of development of manufacturing techniques, lead to the fact that aluminum is highly priced.
Aluminum has a high corrosion resistance, is easy to punch, lightweight, due to which it is used everywhere, starting from the production of foil, mirrors, and dining facilities to high-tech devices and aerospace vehicles.
Our company sells primary aluminum ingots. Aluminum is packed in pallets. The weight of one single pallet is 700-1000 kg, while the weight of one ingot - 15 kg. Primary aluminum GOST 11069-2001