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Frasch process

[frahsh]
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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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Origin of Frasch process

after Hermann Frasch, German-born U.S. chemical engineer, who developed it
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018