Outokumpu Technology Oyj— Joy so Far
Starting 2007 as an independent company, maybe looking for a new
name, Outokumpu Technology’s business has seemingly got off to a vigorous
start, announcing orders for long-established and new technologies. On January
11, the company announced that, in addition to the flash flotation circuit already
ordered, it is to supply the thickening circuit for the expansion project at the
Boddington gold mine in Australia. The contract covers the design and supply of
four thickeners, of which the largest will be a 74-m Supaflo high rate model.
Almost all the components will be sourced locally. On January 15, the firm announced
a first: leading Chinese zinc producer, Hunan Zhuye Torch Metals, signed a deal
covering the design and delivery of a zinc plant expansion using Outokumpu’s
Atmospheric Direct Leaching Process technology. Presently this is only in use
at Kokkola in Finland and Odda in Norway, both owned by Boliden and previously
by Outokumpu Oyj. Hunan Zhuye Torch Metals is a fully owned subsidiary of Zhuzhou
Smelter Group and the plant is located close to the city of Zhuzhou, Hunan province
in China. The contract value is nearly €30 million. The expansion will increase
the plant capacity by 100,000 mt/y of zinc when it comes into operation, probably
by July 2008. In order to increase the use of the Atmospheric Direct Leaching
Process in China, Outokumpu Technology has also signed a Collaboration Agreement
with Zhuzhou Smelter Group. Two days later, Outokumpu Technology announced it
signed a contract with MMC Norilsk Nickel for the modernization of a flash smelting
production line at Nadezhda metallurgical plant in Norilsk, Russia. The value
of the contract is some €16 million and the renewed line will be operational
by mid-2008. Outokumpu Technology and Norilsk Nickel have worked in close cooperation
for more than 30 years. Two flash smelting production lines have been in operation
in Nadezhda since 1981 and they have been expanded and modernized by Outokumpu
Technology in 1998 and 2003. “By selecting the latest and most efficient
nickel smelting technology, we will strengthen our position as the world's leading
nickel producer. Outokumpu Technology as a partner was a natural choice for us,
since we have years of experience in working together,” said Tav Morgan,
deputy general director of Norilsk Nickel. On February 1, a flotation first: Outokumpu
Technology agreed to the delivery of three TankCell-300 flotation cells to OceanaGold’s
Macraes operation in New Zealand. Introduced at the “Centenary of Flotation”
conference in 2005, and with an active capacity of more than 300 m3, this is the
largest mechanical flotation cell in the world. The Macraes delivery will be the
first installation and represents a significant development for flotation technology
in general. Outokumpu Technology will provide the complete flotation circuit at
Macraes and is responsible for the design, supply, installation and commissioning
of the three cells, with completion scheduled for mid 2007. The TankCell-300 units
at Macraes will also feature the firm’s fieldproven and patented FloatForce
mixing system. OceanaGold’s Macraes mine is New Zealand’s largest
producer of gold, with the annual capacity to process 6 million metric tons. A
single train configuration of 1/1/1 TankCell-300s, combined with two existing
TankCell-150s, will replace the site’s original three trains of column flotation,
representing a significant reduction not only in footprint, but also in operational
costs such as maintenance and spare parts. The larger TankCell design also offers
optimized froth stability for lowgrade ores, as well as ongoing savings from lower
air and power consumption. This latest flotation contract follows previous installations
by Outokumpu Technology installed over many years at Macraes, including flotation,
thickening and automation equipment systems.