Method for the fractional condensation of a hot gas mixture...

Details Method for the fractional condensation of a hot gas mixture... Method for the fractional condensation of a hot gas mixture...

C - Chemistry, Metallurgy

07

C

C07C 57/07 (2006.01) B01D 5/00 (2006.01) C07C 51/44 (2006.01)

Patent

CA 2303373

The invention relates to a method for the fractional condensation of a gas mixture which contains at least one other condensable constituent in addition to acrylic acid or methacrylic acid and which also has a high proportion of one or several non-condensable constituents. According to said method, the gas mixture is passed through a column with separation-efficient baffles and the condensable constituents are condensed out by cooling.

L'invention concerne un procédé pour la condensation fractionnée d'un mélange gazeux contenant, outre de l'acide acrylique ou de l'acide méthacrylique, encore au moins un autre constituant condensable et de plus une proportion élevée d'un ou de plusieurs constituants non condensables. Dans ce procédé, on fait passer le mélange gazeux par une colonne possédant des chicanes séparatrices, et on condense par refroidissement les constituants condensables.

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