The Suzdal Gold mine is located 55 km southwest of the city of Semey (formerly Semipalatinsk) in the Znamenka Rural Administrative district within north-eastern Kazakhstan, and approximately 600 km east-southeast of the capital city of Astana. Suzdal operates an underground mine feeding a processing plant with crushing, grinding, flotation, BIOX, CCD and CIL circuits.
Suzdal operates an underground mine feeding a processing plant with crushing, grinding, flotation, BIOX®, CCD and CIL circuits. The Suzdal plant operates three proprietary Outotec technologies used in the treatment of refractory gold ore:
- The BIOX® process was developed for the pre-treatment of refractory gold concentrates. The Suzdal BIOX® plant was commissioned in 2005 and was the first use of this process in Eurasia.
- The ASTER™ Process is a biological process for the destruction of cyanide and thiocyanate in leach residue solutions, allowing for the recycling or disposal of the detoxified solution. The Suzdal ASTER™ plant was commissioned in 2013 and allowed for an improved water management at the mine.
- The HiTeCC Process was developed for the recovery of preg-robbed gold from leach residues. The Suzdal HiTeCC Plant was commissioned in 2016.
The Suzdal HiTeCC plant is the second application of this innovative Outotec technology. Initial development of the technology was completed at Kirkland Lake Gold’s Fosterville Gold Mine in Australia, resulting in the successful installation of the HiTeCC process at the mine in 2009.