Rock-Eating Bacteria "Mine" Valuable Metals Nov 6, 2008
When the life-forms break down the matter through metabolism, they squeeze out metal ores or concentrates combined with sulfur in a process called bioleaching ... Bioleaching already currently accounts for an estimated 20 percent of the world's mined copper, and is in use at about 20 mines around the world ... Since that discovery, dozens of other microorganisms useful for bioleaching have been found around the world, including in an uranium mine, a volcano, and a hot spring. (National Geographic)
Adamus Resources Limited - New Depth Potential Revealed - Drilling Results Next Week Jul 31, 2008
Testwork currently being undertaken already indicates that a concentrate containing up to 95% of gold mineralisation can be made from the Salman refractory sulphide mineralisation and that this concentrate would be expected to produce a high recovery when processed via bioleaching or pressure leaching ... Bioleaching is a proven technology currently used at the adjacent Golden Star Resources gold operation and extensively elsewhere in Ghana and throughout the world. (Canada Newswire)
Adamus Resources Limited - Gold Ore Reserve Boosted to 815,000 oz Apr 2, 2008
Bioleaching of float-concentrates is currently being used at the regionally neighbouring Bogoso Gold Operation (Bogoso) owned by Golden Star Resources Inc only 45km north and along strike from the SAGP. Bogoso mined surface oxide material similar to the SAGP at the rate of 100,000 oz per year for 10 years and has now recommenced processing refractory sulphide material ... Recent test results indicate a float-concentrate containing up to 95% of sulphide mineralisation can be delivered and that... (Canada Newswire)
BacTech Mails Scorpio Gold Merger Information Circular Dec 4, 2007
The Company's focus is the acquisition of equity positions in projects amenable to bioleaching. Shares outstanding 57,607,206. (CCNMatthews Press Releases)
Independent Nickel Announces Positive Results of Lynn Lake Pre-Feasibility Study Improving Project Economics by 34% Nov 13, 2007
This scenario involves constructing a conventional bioleaching circuit, together with the mill and concentrator. The final leached product would then be converted to nickel, copper and cobalt metal cathodes through solvent extraction and electrowinning circuits, producing a product that can be sold on world metal markets. (CCNMatthews Press Releases)
Candente Resource Corp.: Metallurgical Testing for Canariaco Copper Project Norte, Peru Apr 16, 2007
Dr. Schlitt has 40 years experience specializing in Solvent Extraction - Electrowinning (SX-EW), chemical processing, hydrometallurgy, particularly copper heap, dump, bioleaching and in-situ leaching, plus metal value recovery in engineering, process assessment, research and development (R & D), and plant-oriented studies in the nonferrous (copper) industry worldwide. ADVERTISEMENT. (CCNMatthews Press Releases)
