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Hartha Club
Hartha is a town in the district of Mittelsachsen, in Saxony, Germany. It is situated 11 km west of Döbeln, and 12 km north of Mittweida. Personalities * Carl Grünberg (1847–1906), woven goods manufacturer in Hartha and politician (SPD), MdR, MdL (Kingdom of Saxony) * Hans Jahn (1885–1960), politician of the Social Democratic Party of Germany, trade unionist and resistance fighter against the National Socialism * Richard Müller (chemist) (1903–1999), chemist, discoverer of the silicone, Müller-Rochow synthesis The direct process, also called the direct synthesis, Rochow process, and Müller-Rochow process is the most common technology for preparing organosilicon compounds on an industrial scale. It was first reported independently by Eugene G. Rochow and ... References Mittelsachsen {{Mittelsachsen-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mittelsachsen
Mittelsachsen (, ) is a district ('' Kreis'') in the Free State of Saxony, Germany. History The district was established by merging the former districts of Döbeln, Freiberg and Mittweida as part of the district reform of August 2008. Geography The district stretches from the Ore Mountains on the Czech Republic–Germany border to the plains between Leipzig and Dresden. The district borders (from the west and clockwise) the state Thuringia, the districts of Leipzig, Nordsachsen, Meißen, Sächsische Schweiz-Osterzgebirge, the Czech Republic, Erzgebirgskreis, the urban district Chemnitz, and the district of Zwickau. The geography of the district varies considerably, stretching from the northern part which almost reaches the North German Plain, to the southern part in the Ore Mountains region. The lowest point is at 140 metres above sea level, in the valley of the Freiberger Mulde near Leisnig. The highest point is 855 metres above sea level on the Czech border. The mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saxony
Saxony, officially the Free State of Saxony, is a landlocked state of Germany, bordering the states of Brandenburg, Saxony-Anhalt, Thuringia, and Bavaria, as well as the countries of Poland and the Czech Republic. Its capital is Dresden, and its largest city is Leipzig. Saxony is the List of German states by area, tenth largest of Germany's sixteen states, with an area of , and the List of German states by population, sixth most populous, with more than 4 million inhabitants. The term Saxony (other), Saxony has been in use for more than a millennium. It was used for the medieval Duchy of Saxony, the Electorate of Saxony of the Holy Roman Empire, the Kingdom of Saxony, and twice for a republic. The first Free State of Saxony was established in 1918 as a constituent state of the Weimar Republic. After World War II, it was under Soviet occupation before it became part of communist East Germany and was abolished by the government in 1952. Following German reunificat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germany
Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total population of over 84 million in an area of , making it the most populous member state of the European Union. It borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, and France, Luxembourg, Belgium, and the Netherlands to the west. The Capital of Germany, nation's capital and List of cities in Germany by population, most populous city is Berlin and its main financial centre is Frankfurt; the largest urban area is the Ruhr. Settlement in the territory of modern Germany began in the Lower Paleolithic, with various tribes inhabiting it from the Neolithic onward, chiefly the Celts. Various Germanic peoples, Germanic tribes have inhabited the northern parts of modern Germany since classical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Döbeln
Döbeln (; , ) is a town in Saxony, Germany, part of the Mittelsachsen district. It sits on the banks of the Freiberger Mulde, Freiberger Mulde river. Location and geography Döbeln is situated in the Central Saxon Hills, Central Saxon Hill country in the wide basin of the Freiberger Mulde, roughly in the middle of the triangle between Chemnitz (40 km away), Dresden (50 km away) and Leipzig (70 km away). The surrounding area is characterized by the Mulde valley, the lower Zschopau (river), Zschopau valley and the surrounding hilly landscape. The Zschopau flows into the Mulde near the village of Schweta. Döbeln has a traditional old town, whose central part is located on the Mulde Island and is surrounded by two branches of the Freiberger Mulde river. Districts of the town are Döbeln-Ost, Döbeln-Nord, Gärtitz, Großbauchlitz, Keuern, Kleinbauchlitz, Masten, Pommlitz, Sörmitz, and Zschackwitz. Döbeln has two highway exits on the Bundesautobahn 14, Döbeln Nord and Döbeln ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mittweida
Mittweida () is a town in Saxony, Germany, in the Mittelsachsen district. Geography Mittweida is situated on the river Zschopau, 18 km north of Chemnitz, and 54 km west of Dresden. Embedded within the steep hills and valleys of the river and two smaller creeks, the town is green and picturesque. Mittweida has a station on the Riesa–Chemnitz railway. A branch line, closed in 1997, served the industries in nearby Dreiwerden and Ringethal. Major roads are the state roads S200, S201, and S247, connecting the town with various federal roads and the motorway A4 which passes south-east of Mittweida. History The town was first mentioned in 1209. In 1286 it was known as ''civitas'' and ''oppidum''. Weaving of wool and linen were major occupations of the inhabitants in the Middle Ages, and after a spinning mill was founded in 1816, the town grew into one of the major textile-producing centers in Saxony of the 20th century. Mittweida was already a sizeable town in the mid-16t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans Jahn
Johannes Jahn (29 August 1885 – 10 July 1960) was a German people, German trade unionist, politician and anti-Nazi activist. Jahn became a smelter, and then in 1909 began working for a trade union. By 1930, he was serving on the national executive of the United Union of German Railway Workers, and was an outspoken opponent of the Nazis. He opposed the dissolution of the unions in 1933, and managed to salvage a list of former union members in the Ruhr. This enabled him to set up a labour resistance group in the area, working closely with the International Transport Workers' Federation (ITF). Jahn was arrested three times by the Nazis, the last being in 1935, after they discovered his resistance group. He fled to Prague, then on to Amsterdam, where from 1936 to 1938, he published a journal for German railway workers in opposition to the Nazis. In 1940, he escaped to London, travelling via Spain and Portugal, where he set up a group of German trade unionists which later a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Social Democratic Party Of Germany
The Social Democratic Party of Germany ( , SPD ) is a social democratic political party in Germany. It is one of the major parties of contemporary Germany. Saskia Esken has been the party's leader since the 2019 leadership election together with Lars Klingbeil, who joined her in December 2021. After losing the 2025 federal election, the party is part of the Merz government as the junior coalition partner. The SPD is a member of 12 of the 16 German state governments and is a leading partner in seven of them. The SPD was founded in 1875 from a merger of smaller socialist parties, and grew rapidly after the lifting of Germany's repressive Anti-Socialist Laws in 1890 to become the largest socialist party in Western Europe until 1933. In 1891, it adopted its Marxist-influenced Erfurt Program, though in practice it was moderate and focused on building working-class organizations. In the 1912 federal election, the SPD won 34.8 percent of votes and became the largest party in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Müller (chemist)
Richard Gustav Müller (17 July 1903 – 7 July 1999) was a German chemist. He and Eugene G. Rochow independently discovered the direct process of organosilicon compounds in 1941. That synthesis, also known as the ''Müller-Rochow process'' is the copper-catalysed reaction of chloromethane with silicon. Müller was awarded the National Prize of East Germany in 1952 for his work. Career Born in Hartha in the state of Saxony, Müller attended the Volksschule (equivalent to elementary and junior high school) in Hartha and the G.E. Lessing Gymnasium (secondary school) in Döbeln. After studying from 1923 to 1931 at the University of Leipzig, he received his doctorate in chemistry. From 1933 onwards he worked as a laboratory manager at Chemische Fabrik von Heyden, a large chemical plant located in Radebeul and famous as the world's first factory to produce salicylic acid on an industrial scale. During his research there, in 1941 he succeeded in achieving industrial production ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Müller-Rochow Synthesis
The direct process, also called the direct synthesis, Rochow process, and Müller-Rochow process is the most common technology for preparing organosilicon compounds on an industrial scale. It was first reported independently by Eugene G. Rochow and Richard Müller in the 1940s.. The process involves copper-catalyzed reactions of alkyl halides with elemental silicon, which take place in a fluidized bed reactor. Although theoretically possible with any alkyl halide, the best results in terms of selectivity and yield occur with chloromethane (CH3Cl). Typical conditions are 300°C and 2–5bar. These conditions allow for 90–98% conversion for silicon and 30–90% for chloromethane. Approximately 1.4 Mton of dimethyldichlorosilane (Me2SiCl2) is produced annually using this process.Elschenbroich, Christoph Organometallics VCH, Weinheim, Germany: 1992. . Few companies actually carry out the Rochow process, because of the complex technology and high capital requirements. Since the silic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
