flash smelting

noun

1. 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

Example Sentences

It requires capital-intensive processes to produce it, involving roasting, flash smelting and the consumption of poisonous gases3.

From Nature