Patents

1. BG 63734 B1 - Method for reclamation of multi-lift heaps and dumps

2. BG 63733 B1 - Method for underground leaching of formation of polymetalic impermeable ore layers with horizontal and inclined occurrence, separated by barren or slightly mineralized zones

3. BG 65932 B1 - Method for selective copper recovery from copper-containing waters and solutions for high grade cathode copper production

4. BG 1242 U1 - Installation for processing and recycling of industrial wastes from non-ferrous metallurgy, containing mainly copper, zinc, lead, nickel and precious metals

Patent Applications

1. Рег.№109782/21.12.2006 - Method and installation for selective extraction of metal cations from weakly acidic to weakly basic solutions

2. Рег.№ 110301/ 5.01.2009 - Method for selective copper and zinc recovery from process solutions for production of high grade electrolytic products