1. Red Back acquired the Tasiast Gold Mine from Lundin Mining
Corporation in August 2007. The Tasiast gold process plant
features a 3-stage crushing circuit followed by milling and
carbon-in-leach. The Tasiast CIL process plant throughput has
been expanded from 1.25 to 2.5 MTPA.The expansion was com-
pleted in the fourth quarter of 2009.
SENET were contracted by Red Back Mining to expand the
plant from the original capacity of 1.25Mtpa to 2.5Mtpa. The
new contract covered all major work items for the expansion,
including upgrading the crushing circuit conveyors, an addi-
tional mill feed bin, gravity circuit , a new pre-leach facility, the
existing CIL system and the tailings disposal pumps.The elution
circuit was reconfigured from pressurized ZADRA to AARL
method and a new column installed. The existing gold room
equipment was installed in a new gold room with increased
electro winning capacity.
The detailed engineering design and procurement was com-
pleted by SENET in Johannesburg, South Africa. The majority of
the mechanical and electrical equipment was procured in
South Africa. All the structural steel work was fabricated in and
shipped from South Africa. The site construction was managed
by SENET using a local civils subcontractor and South African
expatriate contractors with regards to the mechanical, struc-
tural, electrical and instrument contractors.
WORK SUMMARY
Client Name: Red Back Mining
Country: Islamic Republic of Mauritania, West Africa
SENET’s Role: EPCM Contractor responsible for the design, supply,
shipping logistics, construction management, and
commission.
Approximate Value: US$ 26 million
Project Period: 2007-2009
Scope: Expansion from 1.25Mtpa to 2.5 Mtpa
Throughput/Materials: 2.5 Mtpa tones per annum Gold Ore
Unique Features: The project is in the middle of the Sahara desert
which made the construction and erection a very
challenging task.
TASIAST
CIL EXPANSION PLANT 2.5Mtpa
PROCESS PLANT - GOLD
www.senet.co.za | +27(0) 11 409 1300