South African research body supplies two furnaces to Peru

16th May 2003 By: Marius Roodt

State-owned mineral research organisation Mintek is supplying two Minfurn carbon regeneration furnaces to Cia Minera Aurifera Santa Rosa (Comarsa) gold-mine in Peru, says marketing manager Willy Cilengi.

The two furnaces have a production capacity of 42 kg/h.

Cilengi tells Mining Weekly that the furnaces were ordered at the end of February, and will be shipped to the South American country at the end of this month.

He says that it will take about 55 days for the furnaces to reach the mining site in Peru.

Commissioning will begin in July.

Santa Rosa has two Minfurns, one which was installed in 1997, and the other in 2000.

However, output has been increasing at the mine and this is what led to the decision for Santa Rosa to order two more Mintek furnaces.

The Minfurn is unique with regard to furnaces.

A novel heating method, known as direct-resistive heating is used, which passes an electric current through a carbon-bed in the furnace, which then acts as the heating element.

The Minfurn is simpler than its counterparts, with fewer moving parts, and is more energy-efficient.

Cilengi reports that a number of other gold-miners from Peru have visited the Santa Rosa operation to see the Minfurns.

He says Mintek has also supplied furnaces to other gold-mines in Latin America, specifically in Brazil and Chile, but Peru is still Mintek’s main market in South America.

Peru is the world’s eighth-largest gold producer.

The research organisation has also supplied furnaces to gold-mines in Russia, the US, Sudan, C