Argon is extensively used in filling
incandescent and fluorescent lamps and electronic tubes;
as an inert gas shield for arc welding and cutting; as a
blanket in the production of titanium, zirconium and
other reactive metals; to flush molten metals to
eliminate porosity in castings; and to provide a
protective shield for growing silicon and germanium
crystals.
Argon is recovered from plants producing
oxygen and nitrogen. These plants liquefy air which goes
under a distillation process to remove oxygen, nitrogen,
argon, and some of the other rare gases.
Gaseous argon is commonly stored in high
pressure cylinders, tubes, or tube trailers. Liquid argon
is commonly stored at the consumer site in cryogenic
liquid cylinders and specially designed vacuum insulated
storage vessels.
