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Zinifex – ZCM Project PERCent

 
20,000
tonnes additional zinc metal per annum
No
No
No
No
Yes
Office: Melbourne 
Customer: Zinifex Century Mine 
Location: Lawn Hill via Mt Isa, Queensland, Australia 
Timeframe: 2006 - 2007 
WorleyParsons’ relationship with Zinifex began in 2005 when we were engaged to deliver a major shutdown for the Port Pirie smelter in South Australia.

Since 2005, WorleyParsons has been awarded an engineering alliance for the Rosebery mine and an EPCM contract for the Hobart smelter in Tasmania. Work includes sustainability and expansion projects to support a number of Zinifex’s core objectives.

In 2007, Zinifex also engaged WorleyParsons to upgrade its Century mine, one of the world’s largest producers of zinc concentrates. The upgrade increases zinc recovery from 79% to 82%, equivalent to an additional 20,000 tonnes of zinc metal per annum. With a total installed cost of approximately AU$45 million, the project involves the installation of a second ball mill and flotation circuit surge tank into the existing facility.

To meet the market window, achievement of the project schedule is a priority for Zinifex. This required many detailed design and procurement activities be completed in parallel with the definition phase. The innovative use of a refurbished second-hand ball mill reduced the project schedule by approximately one year compared with the use of new equipment.

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