Haber process


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Haber process

(hä`bər), commercial process for the synthesis of ammoniaammonia,
chemical compound, NH3, colorless gas that is about one half as dense as air at ordinary temperatures and pressures. It has a characteristic pungent, penetrating odor.
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, NH3. Pure hydrogen and nitrogen gases are mixed in the appropriate proportion, heated to between 450°C; and 600°C;, compressed to about 1,000 atmospheres pressure, and passed over a catalyst. The reaction is 3H2+N2⇋ 2NH3+heat. The ammonia gas is liquefied by rapid cooling; unreacted nitrogen and hydrogen are returned to the reaction chamber. This process, developed by Fritz HaberHaber, Fritz
, 1868–1934, German chemist. He was a professor of physical chemistry at Karlsruhe and became director of the Kaiser Wilhelm Institute at Dahlem in 1911.
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 in 1909, was the first commercially important high-pressure chemical process.

Haber process

[′hä·bər ‚prä·səs]
(chemical engineering)

Haber process

an industrial process for producing ammonia by reacting atmospheric nitrogen with hydrogen at about 200 atmospheres (2 × 107 pascals) and 500°C in the presence of a catalyst, usually iron
References in periodicals archive ?
We think the simplest way to explain the signal in both objects is the Haber process.
She continued saying, " Ammonia is synthesized through Haber process as pure H2 and N2 react with each other at very high temperature (500AC) and pressure (351 kPa), whereas, in our research, all experiments were done in a somewhat briefly designed system at the presence of N2 and H2 by the bacteria which are easily separable from soil.
The 99% extraction efficiency demonstrated that the Haber process can more than double the current extraction efficiencies generally obtained in Suriname with the use of mercury.