Praxair to Build Air Separation Unit in Newfoundland

Praxair has signed a new contract with Vale (Rio de Janeiro), a leading international mining company, to supply oxygen to a nickel processing facility being built at Long Harbour, NF. Praxair will build, own, and operate a cryogenic air separation unit with a capacity of 390 m.t./day. The unit is expected to start up in mid-2013. Vale has a new hydrometallurgical process that will use oxygen to remove the sulfur and iron from the nickel. Unlike traditional nickel refining processes, Vale’s new method makes it possible to process the nickel ore concentrate...

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