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Praxair signs new contract with Vale in Canada  

By Gerald Ondrey |

Praxair Canada Inc., a subsidiary of Praxair, Inc. (Danbury, Conn.; www.praxair.com), has signed a new contract with Vale, a leading international mining company, to supply oxygen to a new nickel processing facility being built in Long Harbor, Newfoundland. Praxair will build, own and operate an energy efficient cryogenic air separation unit with a capacity of 390 ton/d, which is expected to start up in mid 2013. Vale has developed a new hydrometallurgical process that will utilize 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 directly into finished metals without having to smelt it first, avoiding sulfur dioxide and dust emissions. Nickel is used to produce stainless steel and other alloys, used in various industries, including aircraft. “We are building a world class nickel refinery that will employ state-of-the-art technology. The operation is intended to be efficient, cost effective, and a key part of Vale Base Metals production plan for years to come. We use oxygen as one of our primary inputs in the pressure leaching process to react with the contained sulfur and dissolve the nickel into…
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The Big 6 level measurement technologies, where to use them and why

ON-DEMAND WEBINAR The Big 6 level measurement technologies, where to use them and why In this session, MS Sreekeanth, a Global Product Manager in ABB’s Measurement & Analytics business, will discuss the typical advantages and applications for…

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