Slide 1: Paladin Resources Presentation Update (ASX cover letter)
GRAND CENTRAL 1ST FLOOR, 26 RAILWAY ROAD PALADIN RESOURCES LTD SUBIACO WESTERN AUSTRALIA 6008 A.C.N. 061 681 098 PO BOX 201, SUBIACO WESTERN AUSTRALIA 6904 TELEPHONE: (+61 8) 9381 4366 FAX: (+61 8) 9381 4978 EMAIL: paladin@paladinresources.com.au Web: www.paladinresources.com.au Ref: 46962 2 Novembe
Slide 2: Paladin Resources Ltd Update: Langer Heinrich Metallurgical Process Review and Commissioning
PALADIN RESOURCES LTD UPDATE LANGER HEINRICH METALLURGICAL PROCESS REVIEW and COMMISSIONING November 2006 1
Slide 3: Disclaimer
Disclaimer This presentation includes certain statements that may be deemed “forward-looking statements”. All statements in this presentation, other than statements of historical facts, that address future production, reserve or resource potential, exploration drilling, exploitation activities and e
Slide 4: Presentation Outline
PRESENTATION OUTLINE • BFS Process Development – Historic work – Mintek BFS work • Uranium Process Enhancement – ANSTO • Vanadium Process Enhancement • Process Summary • Staged Commissioning Status of Project 3
Slide 5: Historical Testwork
HISTORICAL TESTWORK Gencor 1975-1981 • Laboratory testwork • On-site crushing and screening • Pilot plant (3,000t treated) • Acid leach consumed 150-200kg acid/tonne ore • Hot, alkaline (carbonate) leach process selected • CIX with NaCl elution & peroxide precipitation • Identified effective U3O8 re
Slide 6: BFS Process Development
BFS PROCESS DEVELOPMENT Testwork (by Mintek) • Scrubbing & Attritioning circuit developed to recover 95% U in 40% mass (reduces capex & opex requirements) • Numerous leach tests conducted to confirm efficiency and operating conditions for alkaline carbonate/bicarbonate leach • Vendor participation f
Slide 7: U Process Enhancement
U PROCESS ENHANCEMENT BFS recommendations The following areas of potential enhancement were identified and listed in the BFS report. • Improve proposed Ion exchange circuit (increase U loadings) • Develop vanadium recovery circuit • Quantify the carbonate balance across the leach & IX circuits • Red
Slide 8: U Process Enhancement
U PROCESS ENHANCEMENT ANSTO testwork program Enhancements developed in conjunction with the Australian Nuclear Science & Technology Organisation. • Elution & precipitation optimisation by: – Conversion to bicarbonate elution (from sodium chloride) – Precipitation via SDU process (significant drop in
Slide 9: Impact on Project
IMPACT ON PROJECT Plant modifications: • Piping and valving around IX & precipitation • Sodium Diuranate circuit added • Reagent storage & mixing facilities re-allocated • No “chloride bleed” circuit All reasonably minor enhancements, using existing equipment Impact on project: • Minor delay in cons
Slide 10: Vanadium Recovery
VANADIUM RECOVERY ANSTO has developed a process which can: • Produce saleable vanadium product • Minimise vanadium in feed to IX • Avoid introduction of foreign ions into leach • Recycle reagents to minimise costs Project status: • Preliminary “scouting” work identified a suitable “adsorbent” • Vana
Slide 11: Summary
SUMMARY Process • BFS process enhanced through minor modifications • Alkaline/carbonate leach is not a process risk • Ion exchange circuit modified to a bicarbonate elution • Elution & precipitation solutions all now recycled • Resin loadings improved through reduced contamination • Modifications im
Slide 12: Langer Heinrich Commissioning Status
LANGER HEINRICH Commissioning Status • Construction 95% complete • Power & water supply complete & functional • Crusher commissioned early • Scrubber, screens & attrittioners run • Pre leach thickener, leach & CCD circuit water filled Control system logic tested • Control system logic tested • Packa
Slide 13: Contact Details
PALADIN RESOURCES LTD Contact Details Grand Central, 1st Floor, 26 Railway Road SUBIACO, WESTERN AUSTRALIA, 6008 Telephone: +61 8 9381 4366 Facsimile: +61 8 9381 4978 Email: john.borshoff@paladinresources.com.au Website: www.paladinresources.com.au 12