Adex Mining contract to SGS Lakefield Research Europe

Adex Mining Inc. announces the award to SGS Lakefield Research Europe Ltd. of Cornwall, United Kingdom of a contract for the development of a gravity - flotation separation process for the processing of tungsten, molybdenum, tin and indium at its Mount Pleasant Mine Property located in southwestern New Brunswick.

The contract is for the initial bench scale simulation of a gravity - flotation separation process designed to recover tungsten concentrates from the Fire Tower Zone at the Property, which hosts the Tungsten-Molybdenum ore deposits. The test program also includes the development of the process for the production of tin concentrates from the North Zone ore deposits. The gravity - flotation separation process provides the primary separation of tungsten or tin with the co-production, respectively, of molybdenum disulfide concentrate and base metal sulfide concentrate containing high concentrations of indium.

SGS Lakefield Research Europe Ltd., a leading research and metallurgical testing laboratory, has a bench scale/pilot test facility in Cornwall for the simulation and development of the proposed gravity - flotation process. The firm has extensive experience in the processing of ore similar to the ore from the Mount Pleasant ore zones using gravity and flotation separation techniques. Both the Cornish South Crofty tin and Wheal Jane tin and tungsten ore processing plants in the United Kingdom were optimized by the project team at SGS Lakefield Research Europe Ltd.

The proposed multi-stage grind and gravity - flotation process is being tested to define the metallurgical performance of the fully integrated process technology. Pilot test programs prior to the closure of the Mount Pleasant Mine in 1985 and subsequent metallurgical test programs have identified gravity separation as a viable technology to enhance the recovery of tungsten and tin. A fully integrated grinding - gravity - flotation flowsheet has evolved as a result of a detailed assessment of previous operations at Mount Pleasant and extensive process development programs.