Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Gold/Mining/Energy : Houston Lake Mining [HLM-ASE] -- Ignore unavailable to you. Want to Upgrade?

To: DRT who wrote (221)	7/27/1999 9:34:00 PM
From: DRT	Read Replies (1) \| Respond to of 364

Further to this note: I just came across this article - for the technically inclined - Ta production from tailings at the Tanco minesite is just another indicator of the market for Ta... the payback period is one indicator of the project economics. MEI Online: March 19, 1999 - TANCO - Tantalum Continuous Falcon 'C' results Tantalum Mining Corporation of Canada has just completed purchase of a rental Falcon C400 unit following 3 months of intensive test work by the tantalum plant metallurgist Claude Deveau. Information just released gives details of Tanco's application in the scavenging of tantalum final tailings. They initially installed a single Falcon C1000, which has been operational for over a year. This unit obtained 30% recovery in 8% of the feed mass. The concentrate from the Falcon C1000 was cleaned using a Holman table. Tabling only achieved recoveries of 60% as the table was being fed at greater than rated capacity. This prompted TANCO to consider purchasing a Falcon C400, which would be used to clean the concentrate produced by the Falcon C1000 and in turn reduce the load on the shaking table. A Falcon C400 was installed in August 1998 in this exact application. The results that have been achieved with the two Falcons in tandem have been excellent. The Falcon C1000 is now pulling 22% of the feed mass to concentrate with an increase in recovery to 60%. The cleaner Falcon C400 is recovering 18% of the feed mass with recoveries in the order of 86%. The reduced load on the table has also allowed the Holman table to be operated closer to its design tonnage and its recovery has increased from 60% to 79%. The overall benefit of installing the Falcons has definitely been worthwhile for TANCO as they achieved a 1.5% increase in overall recovery with the Falcon C1000 only. Adding the Falcon C400 to the circuit pushed the overall recovery up by another 1.5%. Making Falcon's responsible for a total of 3% increase in overall plant recovery. The Falcon C400 had a payback of just over three months. Since the initial installation of the C1000 in 1997, valve development work carried out by Falcon has greatly improved the user friendliness of the continuous valve system to the point where they are considered trouble free with respect to maintenance and blockage concerns. DRT