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MEI Online: Plant Operation News: Africa: September 21st 2004


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:: Roche Mining Mineral Technologies Sets a New Bench-Mark

Roche Mining (MT) recently secured a $25 million contract for the supply of equipment and services for the Kenmare Resources’ Moma mineral sands project in Mozambique.

Mr Glen Zille, General Manager of Roche Mining (MT) said the supply contract represents a new benchmark for Roche Mining (MT); being the largest and most complex contract the company has embarked on.

The supply contract incorporates:

  • Process and project engineering (re) design of the Moma Wet Concentrator Plant (WCP) and Mineral Separation Plant (MSP)
  • Refurbishment of the full range of existing Roche Mining (MT) proprietary equipment under the ", MD, Readings, and Kelsey” brand name mineral separation equipment for re-use in the Moma Plants.
  • Supply of new equipment including a number of Reading electromagnetic and rare-earth magnetic separators and Carrara electrostatic separators.
  • Supply of on-site services for equipment installation supervision, training, ramp-up and commissioning.
  • A performance guarantee

This project follows a 6 year relationship between Kenmare Resources and Roche (MT), first having been involved in process flowsheet development using the conventional mineral separation equipment the company acquired from BHP’s defunct Beenup operation in Western Australia," said Mr Zille. “Since then, Roche (MT) has worked on developing subsequent process engineering flowsheets and obtained significant improvements by using the recently-developed new generation of Carrara High Tension electrostatic separators," he said.

The flowsheet revisions bring significantly greater separation efficiencies, operational improvements and cost benefits by incorporating the state-of-the-art Carrara electrostatic machines in the Rutile and Zircon dry separation circuits.

“The existing WCP separation equipment (2300 Roche MD spiral separators) has been retained for the 3000t/h WCP; however, design changes will be needed to accommodate the different ore body characteristics and operating conditions that will be experienced on site," said Mr Zille. “Similarly, with a significantly different heavy mineral suite, and the need to produce a range of ilmenite products and two Rutile and two Zircon products, the MSP (rated at 120t/h) will also require design changes from the Beenup MSP," he said.

Due to reach full production in late 2006, the Moma project will be a significant source of world-class heavy mineral products.




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