#fractional_process__fractionation  a process that uses heat to separate a substance into its components
  supertype:  #natural_process__naturalproces__natural_action__naturalaction__action__activity  a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"
  subtype:  #destructive_distillation__destructivedistillation  heating a solid substance in a closed container and collecting the volatile products
     subtype:  #carbonization__carbonisation  the destructive distillation of coal (as in coke ovens)
  subtype:  #fractional_distillation  fractionation of a liquid by distillation

No statement uses or specializes #fractional_process; click here to add one.