Process for separating tetrafluoroethylene from nitrogen and carbon monoxide

摘要

Tetrafluoroethylene, often obtained in industrial processes in admixture with nitrogen and/or carbon monoxide can be separated practically quantitatively by absorption in aliphatic hydrocarbons or aliphatic ketones boiling at a temperature in the range of from +50 to +130 DEG C at atmospheric pressure with subsequent desorption. A separation from three component mixtures is also possible. Components boiling at a temperature below the boiling point of tetrafluoroethylene, which are absorbed together with the tetrafluoroethylene, can be separated by known methods.