Process for separating hf from its mixtures with...

Details Process for separating hf from its mixtures with... Process for separating hf from its mixtures with...

C - Chemistry, Metallurgy

01

B

C01B 7/19 (2006.01) C07C 17/38 (2006.01) C07C 19/08 (2006.01)

Patent

CA 2110869

The invention relates to a process for separating HF contained in liquid mixtures comprising HCFC 123 and/or 124. The mixtures, enriched in C2C14 up to a content of such compound of 20-75% by weight, is subjected to a treatment for separating liquid phases, thereby obtaining an acid phase very rich in Hf and an organic phase impoverished in HF, which is subjected to a flash, so obtaining a liquid phase containing 123, 124 and C2Cl4, having a very low HF content, and a gas phase enriched in HF. As an alternative to flash, a separation in a distillation column can be carried out.

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