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    • Mexican Billionaire Carlos Slim Gets The Green Light For

      Minera Frisco, controlled by Mexican billionaire Carlos Slim, has been given the green light to search for gold in Mexico. In a controversial decision,

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    • Ecuador begins large scale mining at Mirador copper project

      Jul 18, 20190183;32;TUNDAYME, Ecuador, July 18 Copper output began at the Chinese owned Mirador mining project in southern Ecuador on Thursday, a milestone in market friendly President Lenin Moreno's effort to boost

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    • Innovations Introduction to Copper Mining amp; Extraction

      The Copper AgeThe Bronze AgeThe Middle Ages and LaterMiningAlso in This IssuePre dynastic Egyptians knew copper very well. In hieroglyphic writing the symbol used to denote eternal life, the ankh, was also used to represent copper. The Greek philosophers later adopted the symbol, slightly modified, as . The connection between eternal durability and the lifetime cost effectiveness of copper and its alloys is surely not coincidentalThe Egyptians obtained most of their copper from the Red Sea Hills, but copper predates ancient Egypt by several millennia, and it is now kLive Chat
    • The Morenci Mine Arizona's Largest Open Pit Copper Mine

      The Morenci Mine is located in eastern Arizona and is one of the largest copper reserves in the world. The mine is located along US Highway 191 near the small towns of Morenci and Clifton. It is about 10 miles from the southeastern edge of the San Carlos Indian Reservation. It is

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    • The Morenci Mine Arizona's Largest Open Pit Copper Mine

      History of The MineNew Mining TechnologiesThe Morenci Mine ProductionThe Role of The Mine in The Local EconomyIn 1865 copper was first discovered in Morenci, the discovery turned out to be part of a huge vein of copper spanning a whole mountain. The Detroit Copper Company started the Morenci mine 7 years later in 1872 and operated it until Copper Queen Mining bought the property in 1885. (Copper Queen Mining later changed its name to Phelps Dodge in 1917.) In March 2007, Phelps Dodge was involved in a $29.5 billion takeover by quality McMoran. quality McMoran Copper and Gold is a mining company opeLive Chat
    • Gold Mining Company Rusoro Mining Junior Gold Producer

      Rusoro Mining is a gold producer and explorer, with a large land position in the prolific Bolivar State mining region in southern Venezuela. Rusoro's corporate strategy is to become a mid tier (gt;500,000 oz Au/yr), low cost gold producer in the near term.

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    • Mining Power Electronics

      The quarrying and open cast mining of materials such as granite, limestone or marble involves crushing, sieving and conveying processes that require motors designed to reduce energy costs and optimize resources. Starters and variable speed drives from Power Electronics give you the efficiency and flexibility needed at each stage.

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    • Economic history of Chile

      While saltpetre mining gradually waned in importance copper mining rose, exporting raw materials to a level unprecedented in the history of Chile. By 1929 copper exports had reached the same values as saltpetre exports, and in 1937 the value of copper exports largely surpassed that of saltpetre.

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    • How to Extract Gold from Computer Circuit Boards?

      2000. A. The amount of gold you will get from 4 tons of circuit boards may not be worth the effort and cost. There are at least two ways to get the gold (1) cut off the tabs and strip them in cyanide (2) burn the entire collection, smelt the copper and gold out of the ash, then extract the gold from the copper.

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    • Mineral rich Ecuadorean province requests mining

      Jul 30, 20190183;32;Azuay province is home to several potentially lucrative gold, silver and copper projects, including the Loma Larga project operated by Canadas INV Metals and the Rio Blanco mine

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    • Morenci Copper Mine, Arizona Mining Technology Mining

      Ninety years later in March 2007, Phelps Dodge merged with quality McMoRan Copper amp; Gold, whose principal asset is the massive Grasberg copper gold mine in Indonesia, in an agreed $25.9bn takeover by quality, the smaller of the two companies. quality McMoRan sold a 13% stake in Morenci mine to Sumitomo Metal Mining (SMM) in May 2016.

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    • Ecuador begins large scale mining at Mirador copper

      TUNDAYME Copper output began at the Chinese owned Mirador mining project in southern Ecuador on Thursday, a milestone in market friendly President Lenin Morenos effort to boost the mining

      Live Chat
    • Mexican Billionaire Carlos Slim Gets The Green Light For

      Minera Frisco, controlled by Mexican billionaire Carlos Slim, has been given the green light to search for gold in Mexico. In a controversial decision,

      Live Chat
    • Copper Exploration in Northern Mexico Sierra Madre Region

      The Sierra Madre region in Northern Mexico was home to many historic artisanal mining camps where precious metals and copper were mined close to surface. Mexico has a long and storied mining

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    • Mining expansion leaves Florence community uneasy

      Part of its mining site includes Oak Flat, a section of Tonto National Forest that the San Carlos Apache Tribe views as sacred. The Rosemont mine is a $1.5 billion project in the Santa Rita Mountains. If opened, it would be one of the largest copper mines in the United States.

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    • Exclusive Chile's Codelco set for copper output hit as

      SANTIAGO (Reuters) Codelcos giant Chuquicamata mine is set for a 40% drop in production over the next two years, an internal forecast seen by Reuters shows, pointing to the sharp challenge facing the worlds top copper miner as it scrambles to maintain output.

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    • Ecuador begins large scale mining at Mirador copper project

      Jul 18, 20190183;32;TUNDAYME, Ecuador, July 18 Copper output began at the Chinese owned Mirador mining project in southern Ecuador on Thursday, a milestone in market friendly President Lenin Moreno's effort to boost

      Live Chat
    • Carlos Donoso Senior Mining Engineer AngloGold Ashanti

      Carlos Donoso MBA amp; Senior Mine Planning Engineer at AngloGold Ashanti Colombia Colombia I have worked in gold, silver, coal and copper projects in Argentina, Brazil, Colombia, Peru and Chile. such as draw control factor, draw angle and extraction rate. In addition, I have modeled productive scenarios for short, medium and long term

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    • Mining expansion leaves Florence community uneasy

      Part of its mining site includes Oak Flat, a section of Tonto National Forest that the San Carlos Apache Tribe views as sacred. The Rosemont mine is a $1.5 billion project in the Santa Rita Mountains. If opened, it would be one of the largest copper mines in the United States.

      Live Chat
    • Rock Mining (Quarrying) Process YouTube

      Nov 27, 20140183;32;Hillsides explode, massive blocks of stone break off of solid rock walls and powerful machines crush large rocks in a matter of seconds. One mile of a

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    • Copper mining in the United States

      In 2014, copper mining produced about 15 metric tons of gold, worth $600 million, which represented 7% of US gold production. Other byproducts of the copper extraction process included silver, and minor amounts of rhenium and platinum group metals. Sulfuric acid is recovered at copper smelters.

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    • Worldsensing Monitoring pore pressures around Aitik mine

      The deposit consists of chalcopyrite and pyrite yielding copper, gold and silver. Pore pressures around the open pit are a crucial parameter for the pumping strategy as well as for the stability of the slopes. Proper dewatering plans of wet production areas in the pit optimize the copper ore extraction processes in the Aitik open pit mine.

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    • Mineral rich Ecuadorean province requests popular

      Azuay province is home to several potentially lucrative gold, silver and copper projects, including the Loma Larga project operated by Canada's INV Metals and the Rio Blanco mine, owned by a Chinese consortium consisting of Junefield Mineral Resources Limited and Hunan Gold Group.

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    • New approaches for extracting and recovering metals from

      May 15, 20170183;32;New approaches for extracting and recovering metals from mine tailings. More than 1.5 million tonnes of mineral tailings are produced each year at the Cobre Las Cruces mine. Given 85% extraction of copper (the maximum achieved in the current bioleaching tests), 9.2 kilotonnes of metal could be produced (with a current value $44 million

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    • The World's 20 Largest Copper Mines The Balance

      Jun 25, 20190183;32;The world's 20 largest copper mines produce nearly 9 million metric tons of the precious metal a year, about 40 percent of the world's total copper mine capacity. Chile and Peru, alone, account for about half of the copper mines on this list, but the U.S.

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    • CENSORED NEWS San Carlos Apache Tribe History of

      Dec 27, 20170183;32;San Carlos Apache Reservation New research reveals that the mining of the eastern Arizona mountains owes its early success to a conspiratorial campaign of murderous vigilantism against Apache families waged by the government and the mining industry. The article, titled quot;Earth, Wind, and Fire Pinal Apaches, Miners, and Genocide in Central Arizona, 1859 1874,quot; appeared on December

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    • Biomining of metals how to access and exploit natural

      These include copper, iron, gold and several others. Although modern mining companies have sustainable mining programmes that include tailings management and external verifications, it is recognized that these industrial activities are responsible for a significant damage to the environment.

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    • Copper Mining and Processing Processing of Copper Ores

      Copper processing is a complicated process that begins with mining of the ore (less than 1% copper) and ends with sheets of 99.99% pure copper called cathodes, which will ultimately be made into products for everyday use.The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the different

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    • Mining and Water Pollution Safe Drinking Water Foundation

      Dec 17, 20160183;32;Therefore, mine waste has multiplied enormously. As mine technologies are developed to make it more profitable to mine low grade ore, even more waste will be generated in the future. Waste from the Mining Process. Ore is mineralized rock containing a valued metal such as gold or copper, or other mineral substance such as coal.

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    • Cananea Copper Mine, Sonora Mining Technology Mining

      The Cananea mine in Sonora is Mexicos largest open pit copper mine, one of the largest in the world and having opened in 1899 one of the oldest on the North American continent. No actual mining has taken place since June 2007, when miners went on strike citing unsafe working conditions and

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    • Carlos Donoso Senior Mining Engineer AngloGold Ashanti

      Carlos Donoso MBA amp; Senior Mine Planning Engineer at AngloGold Ashanti Colombia Colombia I have worked in gold, silver, coal and copper projects in Argentina, Brazil, Colombia, Peru and Chile. such as draw control factor, draw angle and extraction rate. In addition, I have modeled productive scenarios for short, medium and long term

      Live Chat
    • Edumine Professional Development and Training for Mining

      Edumine provides online courses, short courses and live webcasts in support of professional development and training for the mining industry.

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    • Reviving Commercial Development of Afghanistans Aynak

      While other, smaller mineral resources are being rampantly looted, Afghanistans large Aynak copper depositworth upward $50 billionhas languished unexploited despite being contracted to a Chinese consortium nearly a decade ago. This Peace Brief seeks to understand what went wrong and explores options for breaking out of the current impasse.

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    • Morenci Copper Mine, Arizona Mining Technology Mining

      Ninety years later in March 2007, Phelps Dodge merged with quality McMoRan Copper amp; Gold, whose principal asset is the massive Grasberg copper gold mine in Indonesia, in an agreed $25.9bn takeover by quality, the smaller of the two companies. quality McMoRan sold a 13% stake in Morenci mine to Sumitomo Metal Mining (SMM) in May 2016.

      Live Chat
    • Water Consumption at Copper Mines in Arizona AZ

      WATER CONSUMPTION AT COPPER MINES IN ARIZONA Arizona has the best copper deposits in the United States, and produces more of the red metal than most countries except Chile and Peru. All mining needs water for mining and processing and copper mining is no exception. Arizona is mostly desert and, therefore, short of water. This

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    • Copper extraction

      Copper extraction refers to the methods used to obtain copper from its ores.The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.

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    • Future of mining in Ecuador to be decided by govt SolGold

      Jun 27, 20190183;32;Earlier this month, energy minister Carlos P233;rez stated that Cascabel had the potential to become the worlds largest underground silver mine, third largest gold mine, and sixth largest copper

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    • Copper Mining and Processing Everything you Need to Know

      The Basics of Copper Mining and ProcessingWhat Is Copper Used for?The Copper Mining ProcessMined from open pits, copper ore must be crushed as part of the process that occurs between extraction and production. Using todays compact mining equipment, copper ore is extracted from the mine.After the ore is crushed, its roasted, which helps to convert sulfides to oxides. The oxides are smelted to produce matte, which then undergoes several refining processes.Live Chat