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MEI Online: Commodities: Metallic Ores: Platinum Group Metals: Latest News: March 17th 2009

 
 

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:: Pilanesberg Platinum Goes Ahead

DRA is on schedule with the construction of a Platinum concentrator and associated infrastructure for Boynton Investments’ new Pilanesberg Platinum Mines project.

DRA is on schedule with the construction of a Platinum concentrator and associated infrastructure for Boynton Investments’ new Pilanesberg Platinum Mines project. The R1.4bn project, with a design capacity of 365 000 tpm, is currently over 40% complete and production is due to begin in late April 2009. The orebody is located on the western limb of the Bushveld Complex, near the Pilanesberg Dome and contains both Merensky reef and UG2 reef. Ore will come from two open pit mines.

A special feature of the plant is the separate treatment of the two reefs: UG2 at 65 000 tpm will be processed in UG2 concentrator section; the Merensky (300 000 tpm), which itself consists of two types, viz contact reef and pothole reef, goes to the Merensky concentrator section.

The UG2, after coarse crushing, goes to a three-stage mill/float circuit, followed by concentrate thickening, filtration and dispatch. The Merensky contact is crushed to –16mm, fed to a DMS plant to remove waste, and re-crushed. The pothole reef also undergoes two-stage crushing but bypasses the DMS. The Merensky crusher products are combined for two-stage milling/flotation and filtration. The UG2 and Merensky concentrates are dispatched separately. The tailings is pumped to a combined tailings dam.

DRA is responsible for the process, civil, structural, mechanical, electrical and instrumentation design, construction and commissioning of the entire concentrator complex from the ROM receiving bins through to the tailings dam, but excluding the dam itself. The plant infrastructure includes roads, potable water, and sewage reticulation, offices, an assay laboratory, change houses and workshops. A new 132 kV overhead line with two main consumer sub stations, HT/LT switchgear and backup power supply will be installed.

DRA’s project manager Willem Postma comments that the innovative 2-in-1 design and the sheer size of the project, make this a project of particular interest and is confident his team will finish on time.

 

 

   

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