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World’s largest onsite high-purity ammonia plant comes onstream in China  

By Gerald Ondrey |

Air Products (Lehigh Valley, Pa.; www.airproducts.com) says it has brought a large-scale, onsite ammonia plant onstream in China’s Anhui Province to supply ultra-high-purity NH3 to Anhui Sanan OptoElectronics Co., a subsidiary of Sanan OptoElectronics (Sanan). The plant, located at Sanan’s new high brightness LED (light emitting diode) manufacturing facility in the Wuhu Economic and Technological Development Area, is the largest onsite high-purity NH3 facility in the world with a supply capacity of 2,000 metrics tons per year. Sanan is the largest high quality LED manufacturer in China. To support Sanan’s expansion plan, Air Products is also building a second high-purity NH3 plant with the same capacity, which is expected to be onstream in the middle of 2012. Large volumes of NH3 are needed to provide the nitrogen source for the gallium nitride layers used in the manufacture of LEDs. A pdf file is not available for this short news release.  
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