Haber process: Difference between revisions
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: {{#Chem: N2 + 3H2 { Fe = 20MPa, 500-600°C } 2NH3}} | : {{#Chem: N2 + 3H2 { Fe = 20MPa, 500-600°C } 2NH3}} | ||
The gasses are refrigerated, the ammonia removed as a liquid, and the process is repeated. Iron oxide can be used in place of iron, because it will be rapidly reduced by the hydrogen gas to water and pure iron. | The gasses are refrigerated, the ammonia removed as a liquid, and the process is repeated. Iron oxide can be used in place of iron, because it will be rapidly reduced by the hydrogen gas to water and pure iron. | ||
Apparently Tungsten can also be used as a catalyst at about 600°C and atmospheric pressure.<ref>{{cite pub | |||
|title=Lecture experiment on the synthesis and combustion of ammonia | |||
|first1= F.|last1=Fromm | |||
|pages=230 | |||
|journal=Journal of Chemical Education | |||
|year=1942 | |||
|volume=19 | |||
|issue=5 | |||
|doi=https://doi.org/10.1021/ed019p230 | |||
|url=https://pubs.acs.org/doi/abs/10.1021/ed019p230 | |||
}}</ref> | |||
==Hazards== | ==Hazards== | ||
* At the extremely high temperatures and pressures involved, rupture and explosion of the reaction vessel is a serious concern. | * At the extremely high temperatures and pressures involved, rupture and explosion of the reaction vessel is a serious concern. | ||
==See Also== | ==See Also== | ||
* [[Ostwald | * [[Ostwald process]] | ||
[[Category:Processes]] | [[Category:Processes]] | ||
==References== | ==References== | ||
Revision as of 00:49, 1 May 2020
The Haber process is a high-temperasture high-pressure process for combining nitrogen and hydrogen gasses into ammonia. The reaction is relatively inefficient, with ~5% yield per iteration.
- N2 + 3 H2{Fe2 NH320MPa, 500-600°C}→
The gasses are refrigerated, the ammonia removed as a liquid, and the process is repeated. Iron oxide can be used in place of iron, because it will be rapidly reduced by the hydrogen gas to water and pure iron.
Apparently Tungsten can also be used as a catalyst at about 600°C and atmospheric pressure.[1]
Hazards
- At the extremely high temperatures and pressures involved, rupture and explosion of the reaction vessel is a serious concern.
See Also
References
- ↑ Fromm, F. (1942) "Lecture experiment on the synthesis and combustion of ammonia"; pp230.
DOI:https://doi.org/10.1021/ed019p230