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Nampo Smelting Complex
The Namp'o Smelting Complex was a smelter in Hadaedu-dong, Hanggu-guyŏk, Namp'o Special City, North Korea. Prior to closure, it employed over 700 workers. It was a comprehensive nonferrous metal production facility including smelters for gold, copper and zinc, other metal rolling and alloy production, smelting by-products, and chemical fertiliser production. In 1997, annual production capacity was 15,000 tons of blister copper, 5,500 tons of refined copper, 7,000 tons of copper wire, 28,000 tons of zinc, and 5,000 tons of lime fertiliser. Concentrates and ores were received from the mines at Taedae-ri and Suan. The facility was served by the Korean State Railway via Tojiri on the Tojiri Line. History The Chinnampo Smelter was originally opened in stages between 1913 and 1915 as a privately owned company during the Japanese colonial era. Destroyed during the Pacific War The Pacific War, sometimes called the Asia–Pacific War, was the theater of World War II that wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smelter
Smelting is a process of applying heat to ore, to extract a base metal. It is a form of extractive metallurgy. It is used to extract many metals from their ores, including Silver mining#Ore processing, silver, iron-making, iron, copper extraction, copper, and other base metals. Smelting uses heat and a chemical reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal base behind. The reducing agent is commonly a fossil fuel source of carbon, such as coke (fuel), coke—or, in earlier times, charcoal. The oxygen in the ore binds to carbon at high temperatures due to the Chemical energy, lower potential energy of the bonds in carbon dioxide (). Smelting most prominently takes place in a blast furnace to produce pig iron, which is converted into steel. The carbon source acts as a chemical reactant to remove oxygen from the ore, yielding the purified metal Chemical element, element as a product. The carbon source is oxidized in two stage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hanggu-guyok
Hanggu-guyŏk is a ''kuyŏk'' in Namp'o Special City, South P'yŏngan province, North Korea. Choe Thae-bok, the chairman of the Supreme People's Assembly, was born in Hanggu-guyŏk. Administrative divisions Hanggu-guyŏk is divided into 18 neighbourhoods (''tong'') and 10 villages ('' ri''). Transportation Hanggu district is served by the P'yŏngnam Line of the Korean State Railway The Korean State Railway (), commonly called the State Rail () is the operating arm of the Ministry of Railways of North Korea and has its headquarters at Pyongyang, P'yŏngyang. The current Minister of Railways is Chang Jun Song. History .... References Districts of Nampo {{NorthKorea-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nampo
Nampo (North Korean official spelling: Nampho; ), also spelled Namp'o, is the second largest city by population and an important seaport in North Korea, which lies on the northern shore of the Taedong River, 15 km east of the river's mouth. Formerly known as Chinnamp'o, it was a provincial-level "Directly Governed City" ("Chikhalsi") from 1980 to 2004, and was designated a "Special City" ("T'ŭkpyŏlsi", 특별시; 特別市) in 2010. Nampo is approximately 50 km southwest of Pyongyang, at the mouth of the Taedong River. Since North Korean independence, the city has developed a wide range of industry and has seen significant recent redevelopment. History Before formation of North Korea The city belonged to Gojoseon until the Three Kingdoms era, when it was taken by Goguryeo. During this time, the city was part of Sogyong (now Pyongyang) until the Goryeo dynasty, when in the aftermath of the Myocheong rebellion, Sogyong was split into six counties, of which curre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Korea
North Korea, officially the Democratic People's Republic of Korea (DPRK), is a country in East Asia. It constitutes the northern half of the Korea, Korean Peninsula and shares borders with China and Russia to the north, at the Yalu River, Yalu (Amnok) and Tumen River, Tumen rivers, and South Korea to the south at the Korean Demilitarized Zone. North Korea's border with South Korea is a disputed border as both countries claim the entirety of the Korean Peninsula. The country's western border is formed by the Yellow Sea, while its eastern border is defined by the Sea of Japan. North Korea, like South Korea, its southern counterpart, claims to be the legitimate government of the entire peninsula and List of islands of North Korea, adjacent islands. Pyongyang is the capital and largest city. In 1910, Korean Empire, Korea was Korea under Japanese rule, annexed by the Empire of Japan. In 1945, after the Surrender of Japan, Japanese surrender at the End of World War II in Asia, end ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold
Gold is a chemical element with the symbol Au (from la, aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal in a pure form. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements and is solid under standard conditions. Gold often occurs in free elemental ( native state), as nuggets or grains, in rocks, veins, and alluvial deposits. It occurs in a solid solution series with the native element silver (as electrum), naturally alloyed with other metals like copper and palladium, and mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides). Gold is resistant to most acids, though it does dissolve in aqua regia (a mixture of nitric acid and hydrochloric acid), forming a soluble tetrachloroaurate anion. Gold is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper
Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a 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 smelted from sulfide ores, circa 5000 BC; the first metal to be cast into a shape in a mold, c. 4000 BC; and the first metal to be purposely alloyed with another metal, tin, to create ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zinc
Zinc is a chemical element with the symbol Zn and atomic number 30. Zinc is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic table. In some respects, zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size.The elements are from different metal groups. See periodic table. Zinc is the 24th most abundant element in Earth's crust and has five stable isotopes. The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest workable lodes are in Australia, Asia, and the United States. Zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity ( electrowinning). Zinc is an essential trace element for humans, animals, plants and for microorganisms and is necessary for prenatal and postnatal development. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blister Copper
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. As in all mining operations, the ore must usually be beneficiated (concentrated). The processing techniques depend on the nature of the ore. If the ore is primarily sulfide copper minerals (such as chalcopyrite), the ore is crushed and ground to liberate the valuable minerals from the waste ('gangue') minerals. It is then concentrated using mineral flotation. The concentrate is typically sold to distant smelters, although some large mines have smelters located nearby. Such colocation of mines and smelters was more typical in the 19th and early 20th centuries, when smaller smelters could be economic. The sulfide concentrates are typically smelted in such furnaces as the Outokumpu or Inco f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Korean State Railway
The Korean State Railway (), commonly called the State Rail () is the operating arm of the Ministry of Railways of North Korea and has its headquarters at P'yŏngyang. The current Minister of Railways is Chang Jun Song. History 1945–1953: Liberation, Partition, and the Korean War The railway lines of North Korea were originally built during the Japanese occupation of Korea by the Chosen Government Railway (''Sentetsu''), the South Manchuria Railway (''Mantetsu'') and various privately owned railway companies such as the Chosen Railway (''Chōtetsu''). At the end of the Pacific War, in the territory of today's North Korea Sentetsu owned of railway, of which was standard gauge, and was narrow gauge; in the same territory, privately owned railway companies owned of rail lines, of which was standard gauge and was narrow gauge. At the same time, in September 1945 in the future territory of the DPRK there were 678 locomotives (124 steam tank, 446 tender, 99 narrow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tojiri Line
The Tojiri Line is a non-electrified secondary railway line of the Korean State Railway in Namp'o Special City, North Korea, from Namp'o on the P'yŏngnam Line to Tojiri.Kokubu, Hayato, 将軍様の鉄道 (Shōgun-sama no Tetsudō) Services The line was built to serve the Namp'o Smelting Complex, which processed nonferrous metals, shipping gold, zinc, coarse and refined copper Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkis ..., copper wire and chemical fertilisers. It received ore and concentrates from mines at Taedae-ri and Suan. Route A yellow background in the "Distance" box indicates that section of the line is not electrified. References Railway lines in North Korea Standard gauge railways in North Korea {{NorthKorea-rail-transport-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Occupation Of Korea
Between 1910 and 1945, Korea was ruled as a part of the Empire of Japan. Joseon, Joseon Korea had come into the Japanese sphere of influence with the Japan–Korea Treaty of 1876; a complex coalition of the Meiji period, Meiji government, military, and business sector, business officials began a process of integrating Korea's politics and economy with Japan. The Korean Empire, proclaimed in 1897, became a protectorate of Japan with the Japan–Korea Treaty of 1905; thereafter Japan Indirect rule, ruled the country indirectly through the Japanese Resident-General of Korea. Japan formally annexed the Korean Empire with the Japan–Korea Treaty of 1910, without the consent of the former Korean Emperor Gojong of Korea, Gojong, the regent of the Emperor Sunjong of Korea, Sunjong. Upon its annexation, Japan declared that Korea would henceforth be officially named Chōsen. This name was recognized internationally until the end of Japanese colonial rule. The territory was administered by th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
