noun
fractional distillation
Technical term in chemistry and chemical engineering. Synonymous with 分留 (ぶんりゅう).
See also: 分留
原油は分別蒸留によってガソリンや軽油などに分けられる。
Crude oil is separated into gasoline, diesel, etc., by fractional distillation.
Synonym; 分留 is a shorter form commonly used in the same technical contexts.
Compound of 分別 (fractionation, separation) and 蒸留 (distillation).