Process for separating tetrafluoroethylene from nitrogen and car

Details Process for separating tetrafluoroethylene from nitrogen and car Process for separating tetrafluoroethylene from nitrogen and car

1977-08-23

1979-01-30

Nozick, Bernard

Gas separation

Means within gas stream for conducting concentrate to collector

2606533, B01D 1900

Patent

active

041370554

ABSTRACT:
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.degree. 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.

REFERENCES:
patent: 3221070 (1965-11-01), Okamura et al.
patent: 3347021 (1967-10-01), Hutton
patent: 3680289 (1972-08-01), Werner et al.

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