Copper Mining and Extraction: Oxide Ores
The smelter for sulfide ores produces sulfur dioxide gas. This is scrubbed from the flue gases to make sulfuric acid for leaching copper from oxide ores. Scrubbing sulfur dioxide also protects the environment. A by-product of the smelting and converting furnaces is sulfuric acid. In what looks like a lucky coincidence, sulfuric acid is needed ...
12.3 Primary Copper Smelting
Pyrometallurgical techniques use heat to separate copper from copper sulfide ore concentrates. Process steps include mining, concentration, roasting, smelting, converting, and finally fire and electrolytic refining. 12.3.2 Process Description2-4 Mining produces ores with less than 1 percent copper. Concentration is accomplished at the
Copper Mining and Processing: Processing 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 ...
Acid leaching of oxide–sulfide copper ore prior the ...
453 Acid leaching of oxide–sulfide copper ore prior the flotation – A way for an increased metal recovery Miroslav D. Sokić1, Vladan D. Milošević1, Velizar D. Stanković2, Vladislav Lj.Matković1, Branislav R. Marković1 1Institute for Technology of Nuclear and Other Mineral Raw Materials, Belgrade, Serbia 2University of Belgrade, Technical Faculty, Bor, Serbia
Copper Sulfide - an overview | ScienceDirect Topics
Copper sulfide ore, which accounts for 80% of the copper resource, is the major source for the metallic copper [1 ]. The major copper sulfide ores contain chalcopyrite (CuFeS 2 ), bornite (Cu 5 FeS 4 ), covellite (CuS), and chalcocite (Cu 2 S). The concentrates of copper from sulfides ores are generally performed by flotation and then processed ...
Copper sulfide - Wikipedia
Copper sulfides describe a family of chemical compounds and minerals with the formula Cu x S y.Both minerals and synthetic materials comprise these compounds. Some copper sulfides are economically important ores.. Prominent copper sulfide minerals include Cu 2 S and CuS ().In the mining industry, the minerals bornite or chalcopyrite, which consist of mixed copper-iron sulfides, are often ...
Treatment of Mixed Sulfide Oxide Ores of Copper
Many of our largest copper deposits contain both sulfide and oxidized copper minerals. The large porphyry mines, with a total copper content of from 1.3 to 2.0 per cent., send to their mills ore with an oxide content of from 0.2 to 0.4 per cent. While the recoveries of the sulfide minerals are considered satisfactory, using modern flotation ...
Chalcopyrite - Wikipedia
Chalcopyrite (/ ˌ k æ l. k ə ˈ p aɪ ˌ r aɪ t,-k oʊ-/ KAL-kə-PY-ryte, -koh-) is a copper iron sulfide mineral and the most abundant copper ore mineral. It has the chemical formula CuFeS 2 and crystallizes in the tetragonal system. It has a brassy to golden yellow color and a hardness of 3.5 to 4 on the Mohs scale.Its streak is diagnostic as green tinged black. On exposure to air ...
Copper Ore - an overview | ScienceDirect Topics
It encompasses the search for industrial raw materials (e.g., clay, limestone, sulphur, salts, and fertilizer minerals and rocks), ores from which metals are extracted (e.g., iron, copper, and zinc ores), and gemstones (diamonds, sapphires, and opals), and includes the search for solid fuels (coal, oil shale, and uranium) but not liquid or ...
Mining Industry | Copper Sulfide Ore and Flotation Process ...
1 Types of copper sulfide ore (1) Single copper mineral Its ore characteristic is relatively simple, and the only useful component that can be recycled is copper. The gangue minerals are mainly quartz, carbonate and silicate. (2) Copper-sulfur ore Called copper-bearing pyrite. In addition to copper minerals, iron sulfide can be recovered, and the main mineral of sulfur is pyrite.
Acid leaching of a copper ore by sulphur-oxidizing ...
Copper leaching with sulphur added only to the upper zone of ore was not as efficient as it was when sulphur was uniformly distributed in the ore. A maximum of 88% copper extraction was obtained after 9 weeks of leaching when 13.3 kg S o was added/t ore.
Heap Leaching Oxide and Sulfide Copper Ores
Heap Leaching Oxide and Sulfide Copper Ores. Heap leaching is a simple means of recovering copper from oxide and oxide-sulfide ores. Although this method requires relatively low capital investment, it suffers from low copper recoveries and relatively high acid consumption. The objectives of this study were (1) to determine what factors ...
Copper(I) sulfide - Wikipedia
Copper(I) sulfide is a copper sulfide, a chemical compound of copper and sulfur. It has the chemical compound Cu 2 S. It is found in nature as the mineral chalcocite. It has a narrow range of stoichiometry ranging from Cu 1.997 S to Cu 2.000 S. Preparation and reactions. Cu 2 S can be ...
Copper extraction - Wikipedia
The copper ore is crushed and ground to a size such that an acceptably high degree of liberation has occurred between the copper sulfide ore minerals and the gangue minerals. The ore is then wetted, suspended in a slurry, and mixed with xanthates or other reagents, which render the sulfide …
Treatment of Mixed Sulfide Oxide Ores of Copper
Copper sulfides describe a family of chemical compounds and minerals with the formula Cu x S y.Both minerals and synthetic materials comprise these compounds. Some copper sulfides are economically important ores.. Prominent copper sulfide minerals include Cu 2 S and CuS ().In the mining industry, the minerals bornite or chalcopyrite, which consist of mixed copper-iron sulfides, are often ...
Copper Mining and Extraction Sulfide Ores
The smelter for sulfide ores produces sulfur dioxide gas. This is scrubbed from the flue gases to make sulfuric acid for leaching copper from oxide ores. Scrubbing sulfur dioxide also protects the environment. For example: FeO(s) + SiO 2 (s)→ FeO.SiO 2 (slag) This is very similar to the removal of impurities in the blast furnace.
