Welcome to KCA
Kappes, Cassiday & Associates (KCA) specializes in the development, engineering and implementation of extractive metallurgical processes for the mining industry. Since 1972, we have been known for our expertise in gold/silver heap leaching. Our staff of over 70 people includes more than 20 process engineers and 25 laboratory personnel who have a broad range of practical experience including copper leaching and recovery, flotation and gravity concentration, and development of complex hydrometallurgical flow sheets.
Regeneration circuit and recovery plant at Agnico Eagle’s La India project in Sonora, Mexico
Current Engineering Studies – January/February 2012
KCA provides a range of feasibility studies at all levels of project evaluation, from initial scoping studies through bankable feasibility studies, providing the right level of detail to support a project’s development. KCA is currently working on seven major studies for projects around the world as we start 2012:
STUDY OPERATION LOCATION
200 TPD Agitated leach for Gold & Silver
In the late 2008, KCA took the responsibility for the engineering, procurement, and construction management (EPCM) of the Bolkardag Project (also known as the Tepeköy Gold Mine) located in Turkey, near the town of Ulukışla in the Niğde province. The Bolkardag Project is a gold and silver recovery plant; utilizing a hot lime pretreatment followed by an agitated sodium cyanide leach and finally using the Merrill-Crowe process for precious metal extraction. The project started construction in early-2011 and was finished in mid-2011, but start-up of the plant was not possible due to governmental permitting delays. Commissioning and start-up resumed in late-2011 and the plant began feeding ore in mid-December. Start-up of the plant and gold/silver production began in January 2012.
Aerial view in November 2011 shows the Bolkardag Plant in Turkey close to completion
Aerial view in November 2011 shows the finished Bolkardag Plant in Turkey
Construction Complete for 3700 TPD Heap Leach & 375 m3/hr ADR Mascota Project
The ADR Plant at the Mascota Gold Mine in
Chihuahua, Mexico - 19 April 2011
Involved in multiple projects with Agnico Eagle Mexico, KCA provided EPCM services for the ADR portion of their Mascota project in Chihuahua, Mexico, now complete. Also directly involved with the operation as a whole, KCA prepared the Scoping Study for the project in November 2008, and acted as project engineer through the completion of construction and commissioning of the plant. The operation includes three stage crushing, screening, agglomeration, CIC adsorption, pressure Zadra desorption, recovery and refining.
Model 125 Carbon Adsorption-Desorption-Recovery Plant
at KCA's Reno, Nevada facility
1,500 tonne/day agitated cyanide leach plant,
designed and built by KCA at Ocampo, Mexico
KCA provided the Engineering, Procurement and
Construction Management services (EPCM Services)
for the $140 million Pinos Altos
Project in Chihuahua, Mexico of Agnico Eagle.