Frasch process

American  

[frahsh] / frɑʃ /

noun

1. a method of mining sulfur by pumping superheated water down into the deposit, thereby melting it so that it can be pumped to the surface.

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Etymology

Origin of Frasch process

First recorded in 1900–05; named after Hermann Frasch (1851–1914), German-born U.S. chemical engineer, who developed it

Example Sentences

What makes Mexico's sulphur doubly attractive is the fact that the deposits are located in gigantic salt domes, which can be mined by the Frasch process, the cheapest method known.

From Time Magazine Archive