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PRAXAIR SHOWCASES VPSA TECHNOLOGY ADVANCEMENTS AT FLORIDA STEEL

 DANBURY, Conn., Sept. 28 /PRNewswire/ -- A new, 80-ton-per-day (72 metric tons per day) OxyGEN(TM) Vacuum Pressure Swing Adsorption (VPSA) system, featuring Praxair's latest developments in non-cryogenic oxygen production, is under construction at Florida Steel Corporation's mini-mill in Jackson, Tenn.
 Florida Steel, a manufacturer of steel products, is wholly owned by Kyoei Steel based in Osaka, Japan.
 The new facility is expected to yield significant product and power cost savings over alternative oxygen supply methods through the use of a new generation of Praxair's ultra-efficient synthetic zeolites (adsorbent material), to separate oxygen from air. Synthetic zeolites were first developed by Praxair (formerly Union Carbide Industrial Gases Inc.) in 1950. On a worldwide basis, Praxair is the only industrial gases company to use the ultra-efficient synthetic zeolites, which were commercialized in 1989.
 "Our commitment to adsorbent and process technology, coupled with our long range research and development program, has enabled us to successfully develop a new generation of our synthetic zeolites this year," said Leonard M. Baker, vice president, Technology.
 "This new advancement will result in making our VPSA process 15 to 20 percent more efficient than other types of non-cryogenic oxygen production cycles, and will bring a great deal of added value to our oxygen customers worldwide," said Baker.
 The VPSA oxygen, produced on-site, will be used by Florida Steel in its electric arc furnace which melts scrap metal for the production of rebar and wire rod.
 Pioneered by Praxair, OxyGEN VPSA systems produce oxygen using a simple two-bed adsorption cycle, and a vacuum/pressure process that relies on swings in pressure. Each bed contains ultra-efficient synthetic zeolites. Operating in a staggered sequence, one bed is always adsorbing nitrogen to produce oxygen from air, while the other bed regenerates by desorbing nitrogen.
 In the last 18 months, Praxair has added more than 1,800 tons per day (1,620 metric tons per day), of non-cryogenic contracted capacity (oxygen and nitrogen) around the world.
 Praxair (NYSE: PX) is the largest industrial gases supplier in North and South America and one of the largest in the world with 1992 sales of $2.6 billion. The company also is a leading supplier of metallic and ceramic coatings and powders. Praxair was previously Union Carbide Industrial Gases Inc. and known as Linde in North America.
 -0- 9/28/93
 /CONTACT: Mary Jane Hammerstedt of Praxair, 203-794-5601/
 (PX)


CO: Praxair, Inc.; Florida Steel Corporation; Kyoei Steel ST: Connecticut, Tennessee IN: MNG SU:

LG -- NY045 -- 6333 09/28/93 11:16 EDT
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Publication:PR Newswire
Date:Sep 28, 1993
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