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flash smelting

noun

a smelting process for sulphur-containing ores in which the dried and powdered ore, mixed with oxygen, is ignited on discharge from a nozzle, melts, and drops to the bottom of a settling chamber. Sulphur is released mainly in its solid form, thus reducing atmospheric pollution

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Nearby words

  1. flash photography,
  2. flash photolysis,
  3. flash picture,
  4. flash point,
  5. flash set,
  6. flash spectrum,
  7. flash unit,
  8. flash welding,
  9. flash-forward,
  10. flash-freeze
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012