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Luilu Metallurgical Plant
The Kamoto Mine is an underground copper and cobalt mine to the west of Musonoi in the former Katanga Province, Democratic Republic of the Congo. As of 2022, the site is the largest active cobalt mine in the world. The mine includes the Luilu metallurgical plant, which accepts ore from KOV mine and Mashamba East mine. The plant has polluted the Luilu River, and tailings also pollute the region with wind-blown dust. The Kolwezi Tailings Project is an attempt to recover additional metal from these tailings. The exploitation rights are owned by the Kamoto Copper Company (KCC), a joint venture between Katanga Mining (75%) and the state-owned Gécamines (25%). Katanga Mining is now owned by Glencore. History Gécamines began operations in the Kamoto underground mine in 1969. The mine produced three million tonnes of ore annually in the 1980s. Before it closed in October 1990 it had produced 59.3 million tonnes of ore, with a grade of 4.21% copper and 0.37% cobalt. In November ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Provinces Of The Democratic Republic Of The Congo
Article 2 of the Constitution of the Democratic Republic of the Congo divides the country into the capital city of Kinshasa and 25 named provinces. It also gives the capital the status of a province. Therefore, in many contexts Kinshasa is regarded as the 26th province. List History When Belgium annexed the Belgian Congo as a colony in November 1908, it was initially organised into 22 districts. Ten western districts were administered directly by the main colonial government, while the eastern part of the colony was administered under two vice-governments: eight northeastern districts formed Orientale Province, and four southeastern districts formed Katanga. In 1919, the colony was organised into four provinces: * Congo-Kasaï (five southwestern districts), * Équateur (five northwestern districts), * Orientale Province and Katanga (previous vice-governments). [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Room-and-pillar Mining
Room and pillar or pillar and stall is a variant of breast stoping. It is a mining system in which the mined material is extracted across a horizontal plane, creating horizontal arrays of rooms and pillars. To do this, "rooms" of ore are dug out while "pillars" of untouched material are left to support the roof overburden. Calculating the size, shape, and position of pillars is a complicated procedure, and is an area of active research. The technique is usually used for relatively flat-lying deposits, such as those that follow a particular stratum. Room and pillar mining can be advantageous because it reduces the risk of surface subsidence compared to other underground mining techniques. It is also advantageous because it can be mechanized, and is relatively simple. However, because significant portions of ore may have to be left behind, recovery and profits can be low. Room and pillar mining was one of the earliest methods used, although with significantly more man-power. The ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining In Lualaba Province
Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic viability of investing in the equipment, labor, and energy required to extract, refine and transport the materials found at the mine to manufacturers who can use the material. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper Mines In The Democratic Republic Of The Congo
Copper is a chemical element with the Symbol (chemistry), symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductility, ductile metal with very high thermal conductivity, thermal and electrical conductivity. A freshly exposed surface of pure copper has a Copper (color), pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material#Metal, building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement. Copper is one of the few metals that can occur in nature in a directly usable metallic form (native metals). This led to very early human use in several regions, from circa 8000 BC. Thousands of years later, it was the first metal to be Smelting, smelted from sulfide ores, circa 5000 BC; the first metal to be cast into a shape in a mold, c. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tilwezembe
Tilwezembe is an open-pit copper and cobalt mine in Lualaba Province of the Democratic Republic of the Congo owned by Katanga Mining, a subsidiary of Glencore. Officially, Glencore has shuttered the mine, but the site is still being used by artisinal miners. History The mine covers an area of . It has an indicated nine million tonnes of ore with 1.89% copper and 0.60% cobalt. Mining in the Tilwezambe pit has taken place off and on since 1999. At first this was done by the state-owned Gécamines using contract labor. In March 2004, Dan Gertler International and Beny Steinmetz Global founded a firm named Global Enterprises Corporate (GEC). In 2004 GEC and Gécamines agreed to rehabilitate and operate the Kananga and Tilwezembe mines. The deal was ratified by presidential decree. A joint venture of Katanga Mining (75%) and Gécamines (25%), named ''DRC Copper and Cobalt Project SARL'' (DCP SARL) began mining in 2007. In November 2008, Katanga Mining said they had temporarily susp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrowinning
Electrowinning, also called electroextraction, is the electrodeposition of metals from their ores that have been put in solution via a process commonly referred to as leaching. Electrorefining uses a similar process to remove impurities from a metal. Both processes use electroplating on a large scale and are important techniques for the economical and straightforward purification of non-ferrous metals. The resulting metals are said to be ''electrowon''. In electrowinning, an electrical current is passed from an inert anode (oxidation, made out of lead (Pb)) through a ''leach'' solution containing the dissolved metal ions so that the metal is recovered as it is deposited in an electroplating process onto the cathode (reduction, stainless steel, aluminium (Al), titanium (Ti)). In electrorefining, the anode consists of the impure metal (e.g., copper) to be refined. The impure metallic anode is oxidized and the metal dissolves into solution. The metal ions migrate through ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaching (metallurgy)
Leaching is a process widely used in extractive metallurgy where ore is treated with chemicals to convert the valuable metals within into soluble salts while the impurity remains insoluble. These can then be washed out and processed to give the pure metal; the materials left over are commonly known as tailings. Compared to pyrometallurgy, leaching is easier to perform, requires less energy and is potentially less harmful as no gaseous pollution occurs. Drawbacks of leaching include its lower efficiency and the often significant quantities of waste effluent and tailings produced, which are usually either highly acidic or alkali as well as toxic (e.g. bauxite tailings). There are four types of leaching: # Cyanide leaching (e.g. gold ore) # Ammonia leaching (e.g. crushed ore) # Alkali leaching (e.g. bauxite ore) # Acid leaching (e.g. sulfide ore) Chemistry Leaching is done in long pressure vessels which are cylindrical (horizontal or vertical) or of horizontal tube form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Room Where Copper Is Electrolyzed At The Gecamines Luilu Refinery Near Kolwezi
In a building or large vehicle, like a ship, a room is any enclosed space within a number of walls to which entry is possible only via a door or other dividing structure that connects it to either a passageway, another room, or the outdoors, that is large enough for several people to move about, and whose size, fixtures, furnishings, and sometimes placement within the building or ship support the activity to be conducted in it. History Historically, the use of rooms dates at least to early Minoan cultures about 2200 BC, where excavations at Akrotiri on Santorini reveal clearly defined rooms within certain structures. In early structures, the different room types could be identified to include bedrooms, kitchens, bathing rooms, closets, reception rooms, and other specialized uses. The aforementioned Akrotiri excavations reveal rooms sometimes built above other rooms connected by staircases, bathrooms with alabaster appliances such as washbasins, bathing tubs, and toilets ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
