By Jacques Cato
Offering an alternative to full-ore mercury amalgamation
In the metallurgy department, the facility has lab-size mills, a lab-scale Knelson concentrator, gravity tables, flotation cells, bottle rolls and, new since last year, a bond rod and abrasion [...]
Since commissioning the gravity circuit has recovered 30-40% of plant feed gold, with Consep Acacia leaching and electrowinning efficiencies of about 98%.
Peter Simpson of GCA recently conducted a six-month post-commissioning health check at Roxgold’s Yaramoko Gold Mine in Burkina Faso.
GCA has installed and commissioned three Consep Acacias in Africa, in as many months. The first Acacia found a home at Cata Mine, Tanzania, the second in Liberia and the third was installed in [...]
In 1976, Benjamin Virgil (Byron) Knelson changed the face of the gravity concentration industry to what mining professionals know it as today. This was the year the the first Knelson Concentrator [...]
Anyone who is familiar with the history of GCA will know that GCA stands for Gravity Concentrators Africa, and that the company used to be called Knelson Concentrators Africa, with the name [...]
GCA has successfully commissioned two KC-QS48/ICS FLSmidth Knelson Concentrators at Asanko Gold’s project in Ghana. The KC-QS48s at Asanko are each rated at 400 tph solids (40-70% solids in feed [...]