A large-scale, on-site ammonia plant has gone onstream in China’s Anhui Province to supply ultra high-purity NH3to Anhui Sanan OptoElectronics Co. Ltd.

The plant, supplied by Air Products in Allentown, Pa., is located at Sanan’s new high brightness LED manufacturing facility in the Wuhu Economic and Technological Development Area. According to Air products, it is the largest on-site high-purity NH3facility in the world with a supply capacity of about 2,200 tons per year.

Air Products also is building a second high-purity NH3plant for Sanan with the same capacity, which is expected to be onstream this year. Large volumes of NH3are needed to provide the nitrogen source for the gallium nitride layers used in the manufacture of LEDs.

Go to www.airproducts.com for more information about the company's capabilities.