Process for sequential flotation separation of lead and copper sulphides obtained from bulk flotation of zinc, copper and lead minerals
BR0205746A
Process of elimination of total carbon, organic or inorganic, in flotated zinc silicate concentrate, with additional magnesium and water purge effect in the zinc production circuit
BR0201259A
Integrated system for online measurement and ph control in zinc hydrometallurgical process with automatic electrode cleaning
BR0106186A
integration processes for the treatment of zinc silicate and sulfate zinc silicate concentrates or ores, whose integration takes place in the neutral leaching step, and / or in the acid leaching step and / or the iron / papagoetite precipitation step
BR0100348A
Concentration and calcination process of zinc silicate minerals and concentrated zinc silicate product
BRPI9904195A2
processes for integrating the treatment of zinc silicate concentrates or ores of sulphide zinc
