Oppau, near Ludwigshafen, Germany

On September 9,1913 the first ammonia synthesis plant was opened at Oppau, Germany, near Ludwigshafen, with a production of 10,000 kg of NH3 per day. The plant was designed for the production of ammonium sulfate, a fertilizer. 

The German company BASF had been following Haber s work through their two employees, Carl Bosch and Alvin Mittasch and eventually bought Haber s patents. Development work was continued on catalyst, process, and equipment design, and in 1913 the first commercial plant with a capacity of 30 tons/day was commissioned at Oppau/Ludwigshafen near Mannheim in Germany. 

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