Sudanese Liquid Air Company Ltd.

Industrial oxygen (gas/liquid)

Oxygen Gas
Oxygen is predominantly produced industrially by the fractional distillation of liquefied air or the use of Zeolites to remove carbon dioxide and nitrogen from air (CO2), or the electrolysis of water.

Uses of oxygen include the production of steel, plastics and textiles, rocket propellan,; oxygen therapy, and life support in aircraft, submarines, spaceflight and diving.

Industrial - the smelting of iron ore into steel consumes 55% of all commercially produced oxygen in the world.

Oxy-fuel welding (commonly called oxyacetylene welding, oxy welding, or gas welding in the U.S.) and oxy-fuel cutting are processes that use fuel gases and oxygen to weld and cut metals respectively. French engineers Edmond Fouche and Charles Picard became the first to develop an oxygen-acetylene welding machine in 1903.

Whilst Oxy-fuel is one of the oldest methods of welding, in recent years it has become less popular in industrial applications, although it is still widely used for welding pipes and tubes as well as repair work. It is also frequently favored for fabricating some types of metal-based artwork.

Liquid oxygen

  • In 1877, Louis Paul Cailletet (1832–1913) in France and Raoul Pictet (1846–1929) in Switzerland succeeded in producing the first droplets of liquid air.
  • Liquid air is one of the physical forms of elemental oxygen. It has a pale blue colour and is strongly paramagnetic and can be suspended between the poles of a powerful horseshoe magnet.
  • Liquid air is given the acronym LOX by the aerospace, submarine and gas industries.
  • Liquid air is used in hospitals and space rockets and stored in ISO tanks. It is a mixture of liquid oxygen with up to 25% liquid ozone and several additives to stabilize this liquid oxidator.


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