Boyne Island aluminium smelter

The Boyne Iceland aluminum smelter is operated by Boyne Smelters Limited northwest of the city of Boyne Iceland, Queensland in Australia as a joint venture in which the majority of shares in the Australian Rio Tinto Alcan holds a 100 per cent subsidiary of the globally active mining group Rio Tinto.

Operation

The company took over the operation of the smelter on in 1982 and could produce up to 1997 annually 260,000 tons of aluminum; since then, the capacity was increased to 558,000 tons. As of 2004, the cabin can deliver energy released for manufacturing cement. In the cottage 2009 1165 people were employed.

The aluminum smelter is supplied with alumina via a 10 km long conveyor belt of Queensland Alumina Limited, which operates an alumina refinery in Gladstone. The bauxite is derived from the Weipa bauxite mine in the north of Queensland. The entire production chain is operated by Rio Tinto Alcan.

The aluminum smelter is a large industrial plant that manufactures aluminum in the melt electrolysis under high energy expenditure. In Hall-Héroult process, pure aluminum is obtained above the melting electrolysis of alumina. In this case, aluminum is mixed with a melt temperature of 2045 ° C and cryolite, in order to lower the melting temperature, wherein the melting temperature can be lowered to 950 ° C, allowing the electrolysis.

Stock shares

Correspond to the information published there were 2009 59.39 % of the shares of the aluminum smelter owned by Rio Tinto Alcan, 9.5% YKK Aluminium ( Australia) Pty Ltd, 9.29% SLM Australia Limited ( SLMA ), 7.71 % SLMA No 2 Pty Limited, 6:46 % Ryowa Ii Development Pty Limited, 5:19 % Ryowa Development Pty Limited ( all Australia ) and 2.46 % Sumitomo Chemical ( Japan).