Purifications of flourinated dimethyl ethers

Details Purifications of flourinated dimethyl ethers Purifications of flourinated dimethyl ethers

1995-06-06

1996-08-06

Spear, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210661, 210690, B01D 1500

Patent

active

055430554

ABSTRACT:
A process for the purification of bis(difluoromethyl)ether. Bis(difluoromethyl)ether is exposed to molecular sieves in order to reduce or completely remove impurities. In a further embodiment, the present invention optionally includes means for preferentially inhibiting the formation of CF.sub.2 HOCCl.sub.3 in the formation of bis(difluoromethyl)ether prior to exposing the bis(difluoromethyl)ether to the molecular sieves.

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