The Detroit Copper Company started mining at Morenci 16km south of Silver City Arizona in 1872 Copper Queen Consolidated Mining bought the property in 1885 with the company name changed to Phelps Dodge in 1917.
Ninety years later in March 2007 Phelps Dodge merged with Freeport McMoRan Copper amp Gold whose principal asset is the massive Grasberg copper gold mine in Indonesia in an agreed 25 9bn takeover by Freeport the smaller of the two companies.
Freeport McMoRan sold a 13 stake in Morenci mine to Sumitomo Metal Mining SMM in May 2016.
Morenci is the largest copper producer in North America and remains a major contributor to Phelps8217s copper output which is second only to that of Chile8217s Codelco In 1986 Phelps Dodge Morenci was established as a partnership between Phelps Dodge Mining Company 72 and Sumitomo Metal Mining Arizona Inc The latter belongs to Sumitomo Corp 15 and Sumitomo Metal Mining 13.
For many years as an integrated mine concentrator smelter operation Morenci pioneered the large scale hydrometallurgical treatment of mined copper ore by dump leaching solvent extraction SX and electrowinning EW during 1985 in parallel with conventional treatment.
In 1999 Phelps Dodge started a 220m mine for leach MFL conversion project and from mid 2001 until 2006 produced all its copper this way However in 2005 the company announced the go ahead for a 210m project to create the world8217s first commercial copper concentrate leaching direct electrowinning operation at Morenci a proprietary technology that allows primary sulphide ore treatment by leaching in combination with secondary ore processing.
As well as new leach electrowin capacity the project required reopening the mothballed Morenci concentrator This programme was accelerated in 2006 to provide copper in concentrate for treatment at Phelps8217s Miami smelter also in Arizona before completion of the hydrometallurgical facilities at Morenci.
The Morenci mine and largely company owned town are located at an elevation of 1 447mabove sea level The operation employs approximately 2 000 people who work 8h or 12h shift rotations.
A feasibility study was conducted for an expansion project to raise the current milling rate from 50 000tpd to 115 000tpd The Morenci mill expansion project began operations in in May 2014 and achieved full milling rates in the second quarter of 2015.
Sentinel Copper Mine Zambia Siemens delivered equipment for 27 open pit mining trucks and two ore mills with corresponding infrastructure The SIMINE TR diesel electric drive concept increased the trucks environmental compatibility by 11 6 and decreased the operating costs by 7 5 The gearless mill drives operate more energy efficiently.
We are one of the leading project suppliers for Copper Processing Equipment and we work closely with our customers to fulfill their specific needs for customized package solution Specialized in the fabrication of these machines for15 years and this enables us to be in a leading position in the field of Copper ProcessingMining.
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