C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 33/046 (2006.01) C07C 29/76 (2006.01) C07C 29/86 (2006.01)
Patent
CA 2230118
The invention concerns a process for separating solids from aqueous 1,4-butyne diol solutions by trickling a solids-containing aqueous butyne diol solution through a column and so bringing it into contact with a solvent which has lower density than the solids-containing butyne diol solution and forms a second phase therewith. The solvent rises in counter-flow to the aqueous butyne diol solution, the solids accumulate at the interface between the aqueous butyne diol and the solvent, and the solids are removed from the column by removing a mixture of aqueous butyne diol and solvent.
L'invention concerne un procédé de séparation de solides contenus dans des solutions aqueuses de butynediol. Une solution aqueuse de butynediol contenant des solides est guidée de façon à s'écouler à travers une colonne et est mise en contact avec un solvant dont la densité est inférieure à celle de la solution de butynediol contenant les solides et qui forme une seconde phase avec ladite solution de butynediol. Le solvant monte à contre-courant de la solution aqueuse de butynediol. Le solide s'enrichit au niveau de l'interface entre le butynediol et le solvant. Le solide est extrait de la colonne par élimination d'un mélange de diol aqueux de butynediol et de solvant.
Flood Gerald
Klausmann Edmund
Klossek Gerald
Vondung Wernfried
Basf Aktiengesellschaft
Robic
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