Difference between revisions of "Raschig process"
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{{about|the process for producing hydrazine|the process for producing hydroxylamine|Raschig hydroxylamine synthesis}} | {{about|the process for producing hydrazine|the process for producing hydroxylamine|Raschig hydroxylamine synthesis}} | ||
| − | The '''Raschig process''' is a method for the industrial production of [[hydrazine]] by the oxidation of [[ammonia]] with [[hypochlorite]]. It was first described by German chemist [[Friedrich Raschig]] in 1907, and was the major process for producing hydrazine through most of the twentieth century. The normal Raschig process produces [[hydrazine hydrate]], but it can be modified (in the [[Raschig–Olin process]]) to produce anhydrous hydrazine if necessary | + | The '''Raschig process''' is a method for the industrial production of [[hydrazine]] by the oxidation of [[ammonia]] with [[hypochlorite]]. It was first described by German chemist [[Friedrich Raschig]] in 1907,<ref>{{citation | inventor-last = Raschig | inventor-first = F. | title = Verfahren zur Darstellung von Hydrazin | country-code = DE | patent-number = 192783 | issue-date = 1907-12-11}}. {{citation | inventor-last = Raschig | inventor-first = F. | title = Verfahren zur Darstellung von Hydrazin | country-code = DE | patent-number = 198307 | issue-date = 1908-05-12}}. {{citation | inventor-last = Raschig | inventor-first = Friedrich | title = Production of Hydrazin | country-code = US | patent-number = 910858 | issue-date = 1909-01-26}}.</ref> and was the major process for producing hydrazine through most of the twentieth century. It was also employed on a laboratory scale before hydrazine compounds became widely commercially available.<ref>{{OrgSynth | first1 = Roger |last1 = Adams | first2 = B. K. | last2 = Brown | title = Hydrazine sulfate | collvol = 1 | collvolpages = 309 | volume = 2 | pages = 37 | year = 1922 | prep = cv1p0309}}.</ref> The normal Raschig process produces [[hydrazine hydrate]], but it can be modified (in the [[Raschig–Olin process]]) to produce anhydrous hydrazine if necessary. The [[Bayer hydrazine process]] is another modification of the Raschig process. |
==References== | ==References== | ||
Latest revision as of 17:39, 3 July 2010
This article is about the process for producing hydrazine. For the process for producing hydroxylamine, see Raschig hydroxylamine synthesis.
The Raschig process is a method for the industrial production of hydrazine by the oxidation of ammonia with hypochlorite. It was first described by German chemist Friedrich Raschig in 1907,[1] and was the major process for producing hydrazine through most of the twentieth century. It was also employed on a laboratory scale before hydrazine compounds became widely commercially available.[2] The normal Raschig process produces hydrazine hydrate, but it can be modified (in the Raschig–Olin process) to produce anhydrous hydrazine if necessary. The Bayer hydrazine process is another modification of the Raschig process.
References
- ↑ Raschig, F. Verfahren zur Darstellung von Hydrazin. DE Patent 192783, issued 11 December 1907. Raschig, F. Verfahren zur Darstellung von Hydrazin. DE Patent 198307, issued 12 May 1908. Raschig, Friedrich Production of Hydrazin. US Patent 910858, issued 26 January 1909.
- ↑ Adams, Roger; Brown, B. K. Hydrazine sulfate. Org. Synth. 1922, 2, 37, <http://www.orgsyn.org/orgsyn/orgsyn/prepContent.asp?prep=cv1p0309>; Coll. Vol., 1, 309.
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