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MEI Online: Plant Operation News: Europe: April 29th 2005


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:: Outokumpu Technology Signed a Contract with Norway's Titania Mine for a Complete Gravity Circuit Upgrade

Outokumpu Technology has begun delivery of a complete gravity circuit upgrade to Titania AS operation's in Hauge i Dalane, Norway. Titania is one of the world's largest producers of ilmenite, a feedstock for titanium pigment, which is ultimately used in such diverse products as paint, plastics, paper and cosmetics.

The fast track project to replace the gravity circuit that has been operating since the 1980's is scheduled for start up in late August 2005. The new circuit integrates two Floatex Density Separators with over 400 Outokumpu Model H9000W wash water spirals. Outokumpu's complete process solution allows Titania to recover several percent more product than its existing spiral only operation.

Installing a Floatex Density Separator is the key to the improved gravity circuit. The separator classifies the spiral feed into coarse and fine fractions. Each fraction is then fed to separate H9000W spiral circuits. The H9000W spiral was developed in Jacksonville specifically to meet Titania's unique requirements. The adjustable wash water feature of the spiral allows Titania necessary product grade control.

Titania contacted Outokumpu Technology's Physical Separation unit in Jacksonville, USA, (formerly Carpco) in 1997 after learning of a recently installed Carpco hematite circuit at LKAB's Malmberget concentrator. Titania wanted to evaluate the Floatex technology implemented in LKAB as it would be applied to their circuit. Testing on a Floatex, initially performed in Jacksonville and later on-site with a pilot unit, coupled with Outokumpu Technology's wash water spirals proved Titania could gain a more simple circuit with greater recovery. Outokumpu Technology's performance success and eight year commitment helped ensure a contract as soon as capital was available.

The Titania Mine is located in the Tellnes district of Norway, and South of the oil industry centre located near Stavanger. Even after 45 years of operation, the Tellnes ilmenite orebody is considered the world's largest deposit. It is rich in a titaniferous magnetite ore, initially exploited for its iron content, now mined primarily for titanium. Titania had installed their original gravity circuit using spirals and Reichert cones following testing carried out at the University of Lulea. Prior to that, the concentrator relied on magnetic separation and flotation to up-grade its concentrates.




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