Acheson process - an industrial process for making graphite by heating a mixture of coke and clay

Bessemer process - an industrial process for making steel using a Bessemer converter to blast air through through molten iron and thus burning the excess carbon and impurities; the first successful method of making steel in quantity at low cost

cyanide process - an idustrial process for extracting gold and silver by treating ore with a sodium cyanide solution

fractional process, fractionation - a process that uses heat to separate a substance into its components

Haber process, Haber-Bosch process - an industrial process for producing ammonia from nitrogen and hydrogen by combining them under high pressure in the present of an iron catalyst

process - a sustained phenomenon or one marked by gradual changes through a series of states; "events now in process"; "the process of calcification begins later for boys than for girls"

Solvay process - an industrial process for producing sodium carbonate from sodium chloride and ammonia and carbon dioxide