AKIPRESS.COM - During 2001-2008 several companies from Kazakhstan, Russia and Kyrgyzstan conducted several metallurgical test works with use of flotation technology and obtained different results of extraction of copper, silver and gold - 88%~94%, 65%~93% and 68%~91% accordingly, Bazarbai Asanov, Chief of Geology Agency's Subsurface Protection and Mining Industry Department, said when asked about content of copper and gold in concentrate from the Bozymchak gold and copper deposit in Jalal-Abad region, Ala-Buka district...