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Olin Raschig process
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Olin Raschig process
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{{Short description|Process for production of hydrazine}}The Olin Raschig process is a chemical process for the production of hydrazine. The main steps in this process, patented by German chemist Friedrich Raschig in 1906 and one of three reactions named after him, are the formation of monochloramine from ammonia and hypochlorite, and the subsequent reaction of monochloramine with ammonia towards hydrazine.PATENT, DE, 192783, patent, Verfahren zur Darstellung von Hydrazin., 1906-11-23, Friedrich Raschig, The process was further optimised and used by the Olin Corporation for the production of anhydrous hydrazine for aerospace applications.ENCYCLOPEDIA, Schirmann, Jean-Pierre, Bourdauducq, Paul, 10.1002/14356007.a13_177, Hydrazine, Ullmann's Encyclopedia of Industrial Chemistry, 2001, 3527306730, The commercially used Olin Raschig process consists of the following steps: - the content below is remote from Wikipedia
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- sodium hypochlorite solution is mixed with a threefold excess of ammonia at 5 °C to give monochloramine
- the monochloramine solution is added to a 30-fold excess of ammonia at 130 °C and elevated pressure
- excess ammonia and the side product sodium chloride are removed
- water is removed by azeotropic distillation with aniline
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- "Olin Raschig process" does not exist on GetWiki (yet)
- time: 10:13pm EDT - Sat, May 04 2024
- "Olin Raschig process" does not exist on GetWiki (yet)
- time: 10:13pm EDT - Sat, May 04 2024
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