Fig. 8

Reactive extraction yields of glutarate from fermentation broth at T = 25 °C and p = 1 bar using either T-C6 (a) or T-C8 (b) as amine extractant. The pH of the fermentation broth was adjusted to 2.5 using highly concentrated sulfuric acid before reactive extraction. a T-C6 was used as amine extractant in the organic solvent ethyl oleate at molar ratios of T-C6/glutarate ranging from 1/1 to 10/1. 10 wt% of 1-dodecanol were added to the organic phase as modifier. b T-C8 was used as amine extractant in the organic solvent ethyl oleate at molar ratios of T-C8/glutarate ranging from 1/1 to 10/1. Systems with a molar ratio of T-C8/glutarate = 6/1 or higher contained 10 wt% 1-dodecanol as modifier in the organic solvent (+Mod.)