percent sulfur content in copper ore mined in montana

Copper ore, in concentrations ranging from 0.29 percent to ten times that amount, is mined from open pit or underground mines. The crushed mine ore is ground in rod and ball mills and then sent to flotation machines where the copper mineral rises to the top in a froth, making a copper concentrate of approximately 30 percent, 27 percent iron and 33 percent sulfur.

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18-07-2021· The copper ore forms only 0.7% of the rock. We need to find a number that we can multiply by .007 to get 90 kg. Dividing 90 kg by .007 will give us that number—approximately 12,860 kg. Multiplying that number by 2.2 pounds/kg would give us the number of pounds (about 28,300 pounds). Dividing by 2000 pounds/ton would give us the number of tons ...

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Copper can be extracted from its ore by: Underground: sinking a vertical shaft into the Earth to an appropriate depth and driving horizontal tunnels into the ore. Open pit: 90% of ore is mined by this method. Ores near the surface can be quarried after removal of the surface layers. The ore is treated with dilute sulfuric acid.

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Answers: 3 on a question: Copper is commonly mined as an ore with a variable percent composition of copper (II) sulfide. This ore is also sometimes referred to as covellite. If a sample of the ore containing 12.5% covellite is exposed to oxygen under high temperatures, copper (II) oxide and sulfur dioxide will form. What is the yield of copper (II) oxide if 1.00 kg of the original ore is ...

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Jun 23, 1992· This ore, for the series of runs showed an average gold content of about 0.16 ounces of gold per ton of ore and up to 0.20 oz. of gold per ton, an average content of 0.08 percent arsenic, 2.49 percent sulfide sulfur (2.81 percent total sulfur) and 0.79 percent organic carbon (0.84 percent .

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Copper Mining And Extraction Sulfide Ores. The main ores of copper are sulfides and oxides From their chemical formulas you can calculate the percentage of copper in each mineral However this is not the same as the percentage of copper in the ore as that …

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Then work out the percentage of copper in each mineral. Don't forget to double the copper mass as it is Cu 2. The masses are: Ar(Cu) = 64; Ar(O) = 16; Ar(S) = 32. The molar mass of Cu 2 O = 128 + 16 = 144 The percentage of copper in Cu 2 O is therefore 128/144 x 100 = 89%. The molar mass of Cu 2 S = 128 + 32 = 160 The percentage of copper in Cu 2 S is therefore 128/160 x 100 = 80%. 3. Which of the …

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09-11-2020· Copper-containing rock, or copper ore, holds only a small percentage of copper. Most of the rock is unwanted material, typically referred to as gangue. There are two main types of copper ore of ...

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Percentage Amount in the Human Body: 0.2%. Sources. Sulfur is mined from pure sulfur deposits found in oil-producing regions in Louisiana, Texas, Canada and Mexico. It is also found in pure form near volcanoes and hot springs.

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In most cases copper ores contain between 0.6 and 1 per cent of copper. Consequently one tonne of ore generates a maximum 6 to 10 kilograms of copper. In the case of platinum the yield is much lower: 1 tonne of ore usually contains between 3 and 6 grams of platinum. Nonetheless it is still worthwhile mining because the platinum price is high.

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Copper Sulfide Mining. A peer-reviewed study of the track record of water quality impacts from copper sulfide mines found severe impacts to drinking water aquifers, contamination of farmland, contamination and loss of fish and wildlife and their habitat, and risks to public health. In some cases, water quality impacts were so severe that acid ...

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In 2012, state and federal documents were reviewed for fourteen copper sulfide mines representing 89% of U.S. copper

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of the iron ore rocks and mines contain sulfide minerals such as pyrite, chalcopyrite, arsenopyrite, etc. The sulfur content of iron ore concentrates is generally about 0.5% to 2%, and sometimes more than 0.7%, while the permitted limit of steel industries is 0.1% (Soltanmohammadi et al., 2011). Meanwhile, the percentage of sulfur increases

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copper ores are mined in open pits. Lead, zinc, copper, and silver are usually found together (in varying percentages) in combination with sulfur and/or oxygen. 12.18.2 Process Description2,5-7 In underground mines the ore is disintegrated by percussive drilling machines, processed through a primary crusher, and then conveyed to the surface.

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06-02-2020· 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 whether it is of sufficiently high grade to be worth mining. Metal ores are generally oxides, sulfides, silicates, native metals such as copper or noble copper - mining districts in that the copper was predominantly in the form of copper ...

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typical sulphur content in iron ore concentrate This article discusses the steps and setting necessary to evaluate the sulfur level in ore concentrates using the CSS844. The efficiency of the concentration process can be determined using the sulfur level of the ore concentrate as a quality control measure.

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Zinc processing - Ores Britannica The zinc content of mined ore is usually between 3 and 10 percent. Almost all ores contain the lead sulfide mineral galena and small quantities of cadmium sulfide. Chalcopyrite and copper-iron sulfide is often present. The most common gangue constituents are calcite dolomite and quartz. Mining and concentrating

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Gold and silver mining was more profitable than copper mining. Their deposits were easier to mine because they were located closer to the surface of the earth. Large capital investment and experienced miners were needed to produce Montana copper because the copper ore was a mixture of complex copper sulfur minerals that were located deep underground.

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17-07-2021· The Montana Department of Environmental Quality failed to properly evaluate the environmental impacts of a new mining technique to be used in a proposed copper mine in the headwaters of Montana's Smith River, attorneys argued in state district court.

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05-07-2019· The proposed $250 million Black Butte Copper Project would be the first new copper mine to open in Montana in more than 40 years. CHRIS D'ANGELO/HUFFPOST. Sandfire Resources America's office in White Sulphur Springs, Montana. The company is proposing to build an underground copper …

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High Sulphur Concentration In Copper Ore. high sulphur concentration in copper ore solution for ore mining Leaching Oxide Ores with Sulfuric Acid After solvent extraction using organic solvents the copper ions are stripped from the solution with a strong acid and leave a blue solution with a high copper is called the rich electrolyte 4 The electrowinning plant.

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How Copper Is Made. Most of the copper ores mined in the united states contain only about 11copper by weighthe most common sulfide ore is chalcopyrite, cufes 2, also known as copper pyrite or yellow copper orehalcocite, cu 2 s, is another sulfide oreuprite, or red copper ore, cu 2 o, is an.

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Copper Ore price market . It gives information to seller about the customers needs on copper ore or concentrate to meet their expectations: the volume of supply, the delivery need and preferable terms of delivery, grade of purity percentage of Cu content varies from 10 up to 60%, copper ore value. Inquire Now; leaching of copper minerals

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08-09-2020· Percent by mass of sulfur in ore? Yahoo Answers. Oct 17, 2016· Heating a 6.599 g sample of an ore containing a metal sulfide, in the presence of excess oxygen, produces 1.462 L of dry SO2, measured at 47.4 °C and 753.5 torr.

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12.3 Primary Copper Smelting. Pine oils, cresylic acid, and long-chain alcohols are used for the flotation of copper ores. The flotation concentrates are then dewatered by clarification and filtration, resulting in 10 to 15 percent water, 25 percent sulfur, 25 percent iron, and varying quantities of arsenic, antimony, bismuth, cadmium,

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