Sparton Resources Inc.

Sparton Resources Inc.

October 15, 2007 08:48 ET

Sparton Resources Inc.: First Yellowcake Produced From Xiaolongtang Cola Ash, China-Test Work Continues

TORONTO, ONTARIO--(Marketwire - Oct. 15, 2007) - Sparton Resources Inc. (TSX VENTURE:SRI) (the "Company") reported today that its ongoing uranium extraction testing program has successfully produced a small amount of yellowcake (U3O8) from fly ash samples taken from the China Guodian Xiaolongtang Thermal Power Plant in central Yunnan Province PRC). The test work is being done by the Company's processing engineering consulting firm Lyntek Inc. of Denver, Colorado, USA. Yellowcake (U3O8) is the uranium compound produced and sold by most uranium producers and is the uranium bearing raw material whose price is quoted in international markets.

This test, the first one to attempt to produce yellowcake, was qualitative in nature and used 6.1 kg of mixed fly ash currently being produced by the old and new burners at the Xiaolongtang station. The ash averaged about 160 ppm U or 0.40 lb/tonne U3O8. Leaching was done with sulphuric acid and the yellowcake was produced by passing the filtered leach solution through a standard ion exchange resin, stripping the resin and precipitating the uranium compound. This process is essentially similar to the uranium extraction and yellowcake production methods used by primary uranium ore processing plants or ISL (in situ leach) operations using an acidic leaching solution. A photo of the yellowcake precipitate is shown on the Company website

New test work currently in progress will focus on refining the leaching, filtering and ion exchange processes. The leach solutions contain significant amounts of gypsum and iron oxide which require removal by filtering prior to passing them through the ion exchange system. The next tests will evaluate uranium extraction from ash from the large waste pile at Xiaolongtang. A 20 kg representative sample taken from drill holes used to test the waste pile will be used for this work.


42 drill holes totalling approximately 700 metres were completed in September in a systematic pattern over the entire fly ash waste pile at Xiaolongtang with a 50 metre average hole spacing. The pile averages about 17 metres in thickness, and contains about 5.3 million tonnes of ash. Systematic sampling of the ash has been completed and samples are currently being analysed at a laboratory in China. Duplicate samples have been taken and sent to SGS Lakefield Laboratories in Toronto, Canada for quality control. The results of the analyses will provide an average uranium content for the waste pile ash and also the content of several other trace heavy metals including molybdenum (similar to the uranium content) and vanadium (twice the uranium content) which have been identified in earlier analyses. Leaching and uranium extraction tests will begin shortly on this material.


The production of yellowcake from waste coal ash is another milestone in Sparton's ongoing secondary source uranium recovery programs in China and elsewhere. The Company and its process engineering consultants have demonstrated that U3O8 can be produced from this material. Refinement of the process methodologies for extraction will be a priority activity for future work. Elsewhere waste ash sampling programs are underway in Hungary and southern Africa, and new results will be reported as they become available.

Sparton's international exploration and evaluation programs are being carried out under the direct supervision of A. Lee Barker, P. Eng., P Geol., the Company's President and CEO who is a Qualified Person under National Instrument 43-101.

The TSX Venture Exchange has not reviewed and does not accept responsibility for adequacy or accuracy of the content of the information contained herein.

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