JERSEY, CHANNEL ISLANDS--(Marketwired - Jan 26, 2014) - Randgold Resources (
RANDGOLD RESOURCES LIMITED Incorporated in Jersey, Channel Islands Reg. No. 62686 LSE Trading Symbol: RRS NASDAQ Trading Symbol: GOLD FLOTATION EXPANSION PROJECT TO UNLOCK TONGON'S FULL POTENTIAL Abidjan, Cote d'Ivoire, 25 January 2014 - Efficiency enhancement projects at the Tongon gold mine have boosted its performance significantly, and the planned expansion of the flotation process should lift the recovery rate to its feasibility study level, Randgold Resources chief executive Mark Bristow said here today. He was speaking at a quarterly media briefing coinciding with a mine visit by international investors. Bristow said while Tongon had increased production, its recovery rate, while slowly improving, was still struggling to break 80% for the year. An additional 2% was achievable by optimising the existing recovery circuit, but raising the recovery rate to the targeted upper 80s will require an expansion of the flotation process to capture most of the sulphide in the ore. Initial estimates of the cost to expand the float circuit amount to US$12 million. It is targeted for completion by the end of 2014 with a forecast payback period of eight to ten months."The standard CIL circuit is not recovering that portion of the gold associated with arsenopyrite which is bypassing the existing flash flotation cells. The original metallurgical testwork indicated that the bulk of the Tongon ore was amenable to cyanidation, with flash flotation in the mill circuit recovering the gold associated with the sulphides. In practice, however, we've seen that this process is not recovering enough of the fine gold associated with arsenopyrite. The expansion of the flotation circuit will address this issue by capturing the full spectrum of sulphides," he said. In the meantime, Tongon is forecasting production of approximately 260 000 ounces for 2014, which is an increase on 2013's gold output but slightly behind the internal target. Click on, or paste the following link into your web browser, to view the associated PDF document. http://www.rns-pdf.londonstockexchange.com/rns/5286Y_1-2014-1-27.pdf This information is provided by RNS The company news service from the London Stock Exchange END
Contact Information:
Contacts:
RNS
Customer
Services
0044-207797-4400
http://www.rns.com