C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 7/04 (2006.01) B01D 3/32 (2006.01) C07D 301/32 (2006.01) B01D 3/14 (2006.01) B01D 3/42 (2006.01)
Patent
CA 2493714
The invention relates to a method for the continuous distillation of the solvent used in oxirane synthesis by reaction of a hydroperoxide with an organic compound, characterised in that the mixture arising after the synthesis and subsequent working up, which comprises the solvent, is separated in a partition-wall column into a low-, middle- and high-boiling fraction and the solvent drawn off as middle-boiling fraction from the side tap of the column.
L'invention concerne un procédé de distillation guidé en continu du solvant employé lors de la synthèse d'oxirane, par réaction d'un hydropéroxyde et d'un composé organique. Le procédé selon l'invention est caractérisé en ce que le mélange produit lors de la synthèse et du traitement consécutif, contenant le solvant, est séparé dans une colonne à membrane, en une fraction à point d'ébullition bas, une fraction à point d'ébullition moyen, et une fraction à point d'ébullition élevé, et le solvant est prélevé en tant que fraction à point d'ébullition moyen sur la zone d'extraction latérale de la colonne.
Bassler Peter
Goebbel Hans-Georg
Rudolf Peter
Teles Joaquim Henrique
Basf Aktiengesellschaft
Borden Ladner Gervais Llp
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