WATER CHILLERS Established 1959
Mining in focus
Another innovation in EW was modern copper EW tankhouse coupled with copper SX . The results were a “ 93 – 95 % current efficiency while producing 60 % to 80 % more copper per unit of tankhouse area than the early EW tankhouses ”.
Copper mining and extraction today
Kordosky ’ s paper eludes to copper extraction innovation that has paved the way for new copper extraction methods and technologies today . Copper extraction has since improved where today , big plants are able to process large tonnes of copper at the highest quality , using smart technological innovations to do so . Elements of conventional copper processing still remain , even with the age of technological innovation .
The University of Arizona ’ s Superfund Research Programme outlines the complex processes of copper processing today . As complex as the processes are , up to 99.99 % of pure copper can be reached , despite mining ore of less than 1 %.
According to the research programme , there are two different methods of processing copper , depending on the type of chemistry ores of the copper . The first method is hydrometallurgy , which is more suitable for copper oxide . Copper oxides are found closer to the surface and are ideal for opencast mining method . The disadvantage of copper oxides is that they have low-grade ore , with a lower concentration of copper . The research programme highlights
SPRINGS – GAUTENG - SOUTH AFRICA
WATER CHILLERS Established 1959
• Local design & manufacture of Water Chillers and specialised cooling systems .
» Locally manufactured : 800W to 75kW » Extended range : 90kW to 280kW
• Customised / special chillers on request
• Preferred supplier of chillers for laboratories and analytical industry
• Temperature controllers ( water to water & air to water )
• Industrial drinking water coolers
• Demo , second hand & hire chillers available
• Standard and salt water shell / tube condensers and evaporators
• Extensive spares holding to support chiller range
• After sales technical support & maintenance
• Network of preferred / authorised agents countrywide and selected African countries
Tel : 0027 ( 11 ) 362 6500
( Pty ) Ltd
SEPTEMBER 2018 MINING MIRROR [ 41 ]