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Zinc Smelting and Alloying Operation
The Hobart smelter is located on the western bank of the Derwent Estuary in Hobart, Tasmania, and is a large-scale zinc smelter with a capacity of 260,000 tonnes. The site’s main products are SHG zinc, zinc die-casting alloys and zinc galvanizing alloys, which are exported predominantly to Asia and, in particular, to China. Hobart sources the majority of its concentrate requirements from within Australia, predominantly from the Zinifex Century and Rosebery mines. Hobart is also focused on sourcing and processing higher percentages of secondary zinc oxides, to increase flexibility of feed to the site. Hobart’s by-products include sulphuric acid, cadmium and copper sulphate, as well as two leach by-products that are typically processed by the Port Pirie smelter, paragoethite and a lead sulphate leach concentrate.
