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Yichun Luming Mine
The Yichun Luming mine is a Chinese molybdenum mine located south-west of the city of Yichun in Heilongjiang province. The mine is operated by Yichun Luming Mining Company, a subsidiary of China Railway Group. It is the largest open-pit mine in China. On 28 March 2020, the mine had a significant tailings release from its storage facility of 2.53 million cubic metres of polluted water. The Chinese government has launched an investigation into the incident. See also *List of molybdenum mines *List of mines in China *Tailings In mining, tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction (gangue) of an ore. Tailings are different to overburden, which is the waste rock or other material that overlie ... References Molybdenum mines in China Floods in China {{Mine-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and borders fourteen countries by land, the most of any country in the world, tied with Russia. Covering an area of approximately , it is the world's third largest country by total land area. The country consists of 22 provinces, five autonomous regions, four municipalities, and two Special Administrative Regions (Hong Kong and Macau). The national capital is Beijing, and the most populous city and financial center is Shanghai. Modern Chinese trace their origins to a cradle of civilization in the fertile basin of the Yellow River in the North China Plain. The semi-legendary Xia dynasty in the 21st century BCE and the well-attested Shang and Zhou dynasties developed a bureaucratic political system to serve hereditary monarchies, or dyna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heilongjiang
Heilongjiang () formerly romanized as Heilungkiang, is a province in northeast China. The standard one-character abbreviation for the province is (). It was formerly romanized as "Heilungkiang". It is the northernmost and easternmost province of the country and contains China's northernmost point (in Mohe City along the Amur) and easternmost point (at the junction of the Amur and Ussuri rivers). The province is bordered by Jilin to the south and Inner Mongolia to the west. It also shares a border with Russia (Amur Oblast, Jewish Autonomous Oblast, Khabarovsk Krai, Primorsky Krai and Zabaykalsky Krai) to the north and east. The capital and the largest city of the province is Harbin. Among Chinese provincial-level administrative divisions, Heilongjiang is the sixth-largest by total area, the 15th-most populous, and the second-poorest by GDP per capita. The province takes its name from the Amur River (see the etymology section below for details) which marks the border bet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Railway Group
China Railway Group Limited known as CREC (the acronym of its predecessor and parent company China Railway Engineering Corporation) is a Chinese construction company which floats in Shanghai and Hong Kong stock exchanges. The major shareholder of the company is the state-owned China Railway Engineering Corporation (CRECG). By revenue, CREC is the largest construction company in the world in the 2015 ''Engineering News-Record'' "Top 225 Global Contractors". In 2016, CRECG ranks in the 57th place among ''Fortune'' Global 500 Enterprises and the 7th place among Top 500 Chinese Enterprises. Business areas CREC holds a large share of the Chinese construction market and participates in many large-scale infrastructure projects overseas (especially in countries in the Southeast Asia and Africa). In addition to the core business of construction, the company does business in surveying and designing, installation, manufacturing, R&D, technical consulting, capital management, as well as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yichun, Heilongjiang
Yichun () is a prefecture-level city on the Songhua river in Heilongjiang province, People's Republic of China. The city is separated from Russia by the Amur River and has an international border of . At the 2010 census, Yichun has a total population of 1,148,126 while 729,202 people live in 15 districts separated by forests. The greening rate of Yichun is up to 83%. The nickname of Yichun is Lindu (). History Yichun was named after the Yichun River (), which is a small tributary of Tangwang River (). The word Yichun means "nine" in Mongolian language. During the Shang Dynasty Yichun was populated by the Sushen (). Before the Tang Dynasty, the region was inhabited by several nomad tribes in the northeastern border area of China including Sushen and Donghu. During the Qing Dynasty, Yichun was under the administration of Qiqihar and Hulan's Deputy Lieutenant-General (Fudutong) before it became a minor town under Tangyuan County's jurisdiction in the 1890s. The region's real dev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molybdenum
Molybdenum is a chemical element with the symbol Mo and atomic number 42 which is located in period 5 and group 6. The name is from Neo-Latin ''molybdaenum'', which is based on Ancient Greek ', meaning lead, since its ores were confused with lead ores. Molybdenum minerals have been known throughout history, but the element was discovered (in the sense of differentiating it as a new entity from the mineral salts of other metals) in 1778 by Carl Wilhelm Scheele. The metal was first isolated in 1781 by Peter Jacob Hjelm. Molybdenum does not occur naturally as a free metal on Earth; it is found only in various oxidation states in minerals. The free element, a silvery metal with a grey cast, has the sixth-highest melting point of any element. It readily forms hard, stable carbides in alloys, and for this reason most of the world production of the element (about 80%) is used in steel alloys, including high-strength alloys and superalloys. Most molybdenum compounds have low solubili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Molybdenum Mines
This list of molybdenum mines is subsidiary to the list of mines article and lists working, defunct and planned mines that have substantial molybdenum output, organized by country. North America Canada United States Europe Asia China South West Pacific Papua New Guinea Australia References {{reflist Molybdenum mines Molybdenum is a chemical element with the symbol Mo and atomic number 42 which is located in period 5 and group 6. The name is from Neo-Latin ''molybdaenum'', which is based on Ancient Greek ', meaning lead, since its ores were confused with lea ... * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Mines In China
This list of mines in China is subsidiary to the list of mines article and lists working, defunct and future mines in the country and is organised by the primary mineral output. For practical purposes stone, marble and other quarries may be included in this list. Antimony * Xikuangshan Mine Boron * Wengquangou mine Copper * Tonglushan mine Gold * Jinfeng Gold Mine * Zaozigou Gold Mine * Sanshandao Gold Mine * Dexing Mine * Shaxi Copper Mine Graphite * Liumao mine *Pingdu mine Iron * Baizhiyan mine * Baoguosi mine * Benxi mine * Gongchangling mine * Jinling mine *Ma On Shan Iron Mine * Pangjiapu mine * Sanheming mine * Shuichang mine * Sijiaying mine * Tadong mine * Wuenduermiao mine * Yuanjiachun mine * Zhalanzhangzhi mine Lead and Zinc * Caijiaying mine * Hongtoushan mine * Huanren mine * Huogeqi mine * Huoshaoyun * Qingchengzi mine * Tianbaoshan mine Lithium * Jiajika mine Fluorite * Hushan mine * Shizhuyuan mine * Sumoqagan mine * Taolin mine Magnesium *Xiafangshen min ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tailings
In mining, tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction (gangue) of an ore. Tailings are different to overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed. The extraction of minerals from ore can be done two ways: placer mining, which uses water and gravity to concentrate the valuable minerals, or hard rock mining, which pulverizes the rock containing the ore and then relies on chemical reactions to concentrate the sought-after material. In the latter, the extraction of minerals from ore requires comminution, i.e., grinding the ore into fine particles to facilitate extraction of the target element(s). Because of this comminution, tailings consist of a slurry of fine particles, ranging from the size of a grain of sand to a few micrometres. Mine tailings are usually produced from the mill in slurry form, which i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molybdenum Mines In China
Molybdenum is a chemical element with the symbol Mo and atomic number 42 which is located in period 5 and group 6. The name is from Neo-Latin ''molybdaenum'', which is based on Ancient Greek ', meaning lead, since its ores were confused with lead ores. Molybdenum minerals have been known throughout history, but the element was discovered (in the sense of differentiating it as a new entity from the mineral salts of other metals) in 1778 by Carl Wilhelm Scheele. The metal was first isolated in 1781 by Peter Jacob Hjelm. Molybdenum does not occur naturally as a free metal on Earth; it is found only in various oxidation states in minerals. The free element, a silvery metal with a grey cast, has the sixth-highest melting point of any element. It readily forms hard, stable carbides in alloys, and for this reason most of the world production of the element (about 80%) is used in steel alloys, including high-strength alloys and superalloys. Most molybdenum compounds have low solubility ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
