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contact process

noun, Chemistry
a catalytic method for producing sulfuric acid from sulfur dioxide and oxygen.
Origin of contact process
1900-05 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for contact process
Historical Examples
  • Pure concentrated acid can be made best by the contact process, while the chamber process is cheaper for the dilute impure acid.

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