1. Home
  2. top of the aat hierarchies
  3. Activities Facet
  4. Processes and Techniques (hierarchy name)
  5. [processes and techniques by specific type]
  6. [subtractive processes and techniques]
  7. cleaning
  8. purification (cleaning process)
  9. refining
Scope note
The act of purification, clarification, or distillation of a substance or product, by a series of industrial processes. Examples may include the processing of sugar, crude oil, or metals.
Accepted term: 20-May-2024