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ASARCO » Refining

ASARCO » Refining

The Asarco Copper RefineryImagine a building bigger than ten football fields — so long, it's said, that the builders had to account for the curvature of the earth when laying out the foundation!It's the Asarco Copper Refinery in Amarillo, Texas, a state known for big things where big things happen.

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Copper processing Roasting, smelting, and converting ...

Copper processing Roasting, smelting, and converting ...

Copper processing Copper processing Roasting, smelting, and converting: Once a concentrate has been produced containing copper and other metals of value (such as gold and silver), the next step is to remove impurity elements. In older processes the concentrate, containing between 5 and 10 percent water, is first roasted in a cylindrical, refractorylined furnace of either the hearth or ...

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A Poor Man's Method of Smelting Gold | Sciencing

A Poor Man's Method of Smelting Gold | Sciencing

A Poor Man's Method of Smelting Gold ... You can remove the most common metals found in gold ore (copper, zinc and lead) using elements that bond with oxygen at lower temperatures than gold. This oxidation process will make copper oxide, zinc oxide and lead oxide — all of which are less dense than pure gold and will float to the top of your ...

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60 Centuries of Copper: Early Smelting Practice

60 Centuries of Copper: Early Smelting Practice

Find Suppliers of Copper. Copper Alloy Supplier Database; ... Early Smelting Practice. Virtually all the ore used by the ancients was handpicked with only the most worthwhile material being taken. Originally it was probably smelted by the Sumerians in shallow pits using charcoal as the fuel. ... Long afterwards smelting furnaces acquired the ...

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primary iron ore smelting furnace

primary iron ore smelting furnace

The ore used at Hopewell Furnace was obtained from iron mines within 5 miles of the furnace. The ironore deposits were formed about 200 million years ago and contain abundant magnetite, the primary iron mineral, and accessory minerals enriched in arsenic, cobalt, copper, lead, and other metals.

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An Overview of Copper Smelting in Southern Africa

An Overview of Copper Smelting in Southern Africa

indicates that the ore contained an average of 32% copper, and that cupola furnaces were in place. Production by the Cape Copper Company ceased in 1919 as a result of the postwar economic slump, and Okiep soon became a ghost town. The operations of the Namaqua Copper Company continued for slightly longer, but its mines finally closed in 1931.

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