A brief summary of Zinc Oxide processing methods available for the Bongará deposit
Zinc Oxide Introduction
Bongará oxide deposit is a typical calamine type deposit containing several zinc minerals: smithsonite, hydrozincite and hemimorphite. A large number of similar deposits were exploited from the beginning of the 19th century. The majority of these deposits are today exhausted. They have been progressively replaced by sulfide deposits located more deeply in the ground.
The composition of Bongará oxide deposit is quite similar to Electric Arc Furnace Dust (EAFD), a residue from the steel industry. The quantity of EAFD processed around the world today is 3,400,000 tpy.
The process applied by the previous Bongará mine owner, the Waelz kiln, can be applied to process the Bongará oxide deposit but other more recent processes (thermic or non-thermic processes) that are proven technologies can also be applied.
The specific location and associated constraints of the Bongará deposit (zinc ore cut-off grade, local communities impact, water availability, power,) will have a determinant influence on the process selection.
This report covers various proven technologies that could potentially be applied to the Bongará oxide deposit.
Download / Read the Report (849 KB PDF)
Report for Zinc One Resources Inc., prepared by:
Noël Masson, Pascal Briol,
PBSIM & BFS Consulting Engineering *
(*) Fields of expertise:
- Process development and process simulation (PBSIM – Process Balance SIMulation)
- Engineering assistance (BFS – Bankable Feasibility Study)