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MEI Online: Plant Operation News: North America: October 18th 2004


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:: Roche MT Wins Canadian Contract

Roche Mining (MT) recently won a contract to replace 336 spirals for the Iron Ore Company of Canada (IOCC).

Currently 65% of the 5500 spiral-starts at the IOCC Carol Lake plant are Roche (MT)s WW6E spirals. Expected future orders in 2005 will bring the number of WW6E spirals to 86% of the total.

Peter Barker, Marketing Manager of Roche Mining (MT) USA, said, "Over a number of years, Roche MT has been involved in upgrading the IOCCs Carol Lake Concentrator, one of the largest producers of iron ore concentrates in North America. They operate a 3 mill circuit, each with 3 stages of spirals followed by magnetic separation and further downstream process upgrading. In 1995/96, all existing spirals in the Mill 12 circuit were replaced with WW6E wash water spirals. This was preceded in 1994/95 by a new hematite spiral plant also with the WW6E's."

"In 2002, Roche (MT) personnel, together with IOCC technical staff, carried out further investigative work on the spiral circuits which led to additional plans to replace all of the old spirals in Mill 13 circuit with WW6E spirals," he said.

The upgrade programme is planned to go ahead with the current order for the replacement of two lines each consisting of 72 -7 turn and 96 -5 turn WW6Es. Replacement of the remaining six lines is expected to follow in 2005.




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