"a process that uses heat to separate a substance into its components"@en-us . . . . . . . . . . . . . . "109678684"@en-us . . . . . . . . . "fractionation"^^ . . . "112721402"@en-us . "0"^^ . . . "13484082-n"^^ . . . . . . . "fractional process"@en-us . . . . . . . . "0"^^ . . . . . "113484082"^^ . "fractionation"@en-us .