Researchers report discovery of a completely new technology for more efficiently separating gold, silver, copper, and other valuable materials from rock and ore.

ST. JOHN'S, NEWFOUNDLAND--(Marketwire - Sept. 25, 2008) - Prominex Resource Corp. (TSX VENTURE:PXR) ("Prominex" or the "Company"), together with Royal Roads Corp.

Santa Fe Gold Corp (OTCBB: SFEG), a U.S.-based mining and exploration enterprise focused on gold, silver, copper and industrial minerals, today announced that it had entered into a definitive agreement with St. Cloud Mining Company ("St. Cloud"), a New Mexico corporation, to purchase St.

By Mohanty, M K Samal, A R; Palit, A Abstract One of the main objectives of this study was to evaluate a fine-coal cleaning circuit using an enhanced gravity separator specifically for a high sulfur coal application.

By Liu, G Zhong, H; Dai, T Abstract In this study, the flotation performances of ethoxycarbonyl thionocarbamate (ECTC), dialkyl thionocarbamate (DATC) and xanthate copper sulfide collectors are compared by the structure-reactivity relationship using generalized perturbation theory and density functional calculation at the B3PW91/6-31G(D) level.