Reactive extraction for downstream separation of 1,3-propanediol.
The downstream separation of 1,3-propanediol from dilute aqueous solution was studied. A process combining reversible reaction of 1, 3-propanediol with acetaldehyde to 2-methyl-1,3-dioxane and a simultaneous extraction of the product by organic solvent appears to be technically feasible and attractive. The dioxane yield was 91-92%, the overall conversion of 1,3-propanediol was ca. 98%, and recovery of dioxane into the organic extractant was 75%.
Malinowski
J J
JJ
Polish Academy of Sciences, Institute of Chemical Engineering, ul. Baltycka 5, 44-100 Gliwice, Poland. j.mal@iich.gliwice.pl
D000079:Acetaldehyde; D001709:Biotechnology; D004146:Dioxanes; D005285:Fermentation; D011409:Propylene Glycols / Q000302:isolation & purification* / Q000378:metabolism; D012996:Solutions; D014867:Water
D004146:Dioxanes; D011409:Propylene Glycols; D012996:Solutions; D014867:Water; C041787:1,3-propanediol; D000079:Acetaldehyde; C025223:1,4-dioxane