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Asarel Medet
Asarel Medet ( bg, Асарел Медет) is an enormous copper extracting and processing factory located at 11 km to the northwest of the town of Panagyurishte in the Pazardzhik Province, Bulgaria. It consists of two main factories: Medet which operates from 1964 and Asarel which began operation in 1989. The number of employees has been greatly reduced since the 1990s from over 5,000 to 2,500. It extracts over 13 million tons of copper ore every year and produces copper concentrate which is sold to the copper refineries at Pirdop. The ore also contains molybdenum, nickel, gold, silver. During the past several years some €40,000,000 have been invested in environmentally friendly technologies in order to preserve the nature of Sredna Gora Sredna Gora ( bg, Средна гора ) is a mountain range in central Bulgaria, situated south of and parallel to the Balkan Mountains and extending from the Iskar to the west and the elbow of Tundzha north of Yambol to the east. Sred ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panagyurishte
Panagyurishte ( bg, Панагюрище, also transliterated ''Panagjurište'', ) is a town in Pazardzhik Province, Southern Bulgaria, situated in a small valley in the Sredna Gora mountains. It is 91 km east of Sofia, 43 km north of Pazardzhik. The town is the administrative centre of the homonymous Panagyurishte Municipality. Panagyurishte is an important industrial and economic center. According to the 2021 census, it has a population of 15,275 inhabitants. https://nsi.bg/bg/content/2975/%D0%BD%D0%B0%D1%81%D0%B5%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5-%D0%BF%D0%BE-%D0%BE%D0%B1%D0%BB%D0%B0%D1%81%D1%82%D0%B8-%D0%BE%D0%B1%D1%89%D0%B8%D0%BD%D0%B8-%D0%BC%D0%B5%D1%81%D1%82%D0%BE%D0%B6%D0%B8%D0%B2%D0%B5%D0%B5%D0%BD%D0%B5-%D0%B8-%D0%BF%D0%BE%D0%BB History In the Middle Ages there was a settlement near the modern town, near the fortress of Krasen some 6 km south of the current location. In the course of the Bulgarian-Ottoman Wars large part the population was killed and the rest had ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pazardzhik Province
Pazardzhik Province ( bg, Област Пазарджик ''Oblast Pazardzhik'', former name Pazardzhik okrug) is a province in Southern Bulgaria, named after its administrative and industrial centre - the city of Pazardzhik. The territory is that is divided into 12 municipalities with a total population of 275,548 inhabitants, as of February 2011. History The territory of the Pazardzhik Province has been inhabited since very early times. There are more than 50 discovered Stone Age and Bronze Age settlements. The earliest civilization to inhabit the region were the Thracians. The remains of the Thracian town Besapara are located in the hills near the provincial capital Pazardzhik. The Panagyurishte Treasure unearthed near the northern town of the same name is known as one of the finest examples of Thracian art. The 6.164 kg of 23-karat gold treasure which consists of nine vessels has been dated back to the 4th and 3rd century BC. In the 1st century BC the region became a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulgaria
Bulgaria (; bg, България, Bǎlgariya), officially the Republic of Bulgaria,, ) is a country in Southeast Europe. It is situated on the eastern flank of the Balkans, and is bordered by Romania to the north, Serbia and North Macedonia to the west, Greece and Turkey to the south, and the Black Sea to the east. Bulgaria covers a territory of , and is the sixteenth-largest country in Europe. Sofia is the nation's capital and largest city; other major cities are Plovdiv, Varna and Burgas. One of the earliest societies in the lands of modern-day Bulgaria was the Neolithic Karanovo culture, which dates back to 6,500 BC. In the 6th to 3rd century BC the region was a battleground for ancient Thracians, Persians, Celts and Macedonians; stability came when the Roman Empire conquered the region in AD 45. After the Roman state splintered, tribal invasions in the region resumed. Around the 6th century, these territories were settled by the early Slavs. The Bulgars, led by Asp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pirdop
Pirdop ( bg, Пирдоп ) is a town located in South-West Bulgaria in Pirdop Municipality of Sofia Province in the southeastern part of the Zlatitsa - Pirdop Valley at 670 m above sea level. It is surrounded by the Balkan Range (also known as the Stara Planina) to the north, Sredna Gora Mountain to the south, and Koznitsa and Galabets saddles to the east and west, respectively. The town has a population of 8,040. Some Aromanians live in Pirdop. Economy The main economic activity is non-ferrous metallurgy. The Pirdop copper smelter and refinery is the biggest in the Balkans and whole of South-Eastern Europe. It was privatized in 1997 for $80,000,000 and is now owned by the German Aurubis. It has a capacity of 160,000 tons and additional capacity of 180,000 tons worth €82,000,000 is being built. The factory also produces 830,000 tons of sulphuric acid and employs 1,420 workers. The main chimney of the factory is 325 metres tall and shares together with the chimneys of ... [...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] |
Nickel
Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel is a hard and ductile transition metal. Pure nickel is chemically reactive but large pieces are slow to react with air under standard conditions because a passivation layer of nickel oxide forms on the surface that prevents further corrosion. Even so, pure native nickel is found in Earth's crust only in tiny amounts, usually in ultramafic rocks, and in the interiors of larger nickel–iron meteorites that were not exposed to oxygen when outside Earth's atmosphere. Meteoric nickel is found in combination with iron, a reflection of the origin of those elements as major end products of supernova nucleosynthesis. An iron–nickel mixture is thought to compose Earth's outer and inner cores. Use of nickel (as natural meteoric nickel–iron alloy) has been traced as far back as 3500 BCE. Nickel was first isolated and classified as an e ... [...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] |
Silver
Silver is a chemical element with the Symbol (chemistry), symbol Ag (from the Latin ', derived from the Proto-Indo-European wikt:Reconstruction:Proto-Indo-European/h₂erǵ-, ''h₂erǵ'': "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc Refining (metallurgy), refining. Silver has long been valued as a precious metal. Silver metal is used in many bullion coins, sometimes bimetallism, alongside gold: while it is more abundant than gold, it is much less abundant as a native metal. Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine". As one of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sredna Gora
Sredna Gora ( bg, Средна гора ) is a mountain range in central Bulgaria, situated south of and parallel to the Balkan Mountains and extending from the Iskar to the west and the elbow of Tundzha north of Yambol to the east. Sredna Gora is 285 km long, reaching 50 km at its greatest width. Its highest peak is Golyam Bogdan at . The mountain is divided into three parts by the rivers Topolnitsa and Stryama — a western (''Ihtimanska Sredna Gora''), a central (''Sashtinska Sredna Gora'') and an eastern part (''Sarnena Gora''). Geography Location and limits Sredna Gora is situated in central Bulgaria, south of and parallel to the Balkan Mountains and north of the Upper Thracian Plain. It extends from the river Iskar in the west to the elbow of the river Tundzha north of the city of Yambol in the east. The main orographic ridge extends from west to east, where the mountain range reaches a total length of 285 km; its maximum width from north to south ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper Mining Companies Of Bulgaria
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 bronze, c. 350 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
