Selection of a recyclable in situ liquid–liquid extraction solvent for foam-free synthesis of rhamnolipids in a two-phase fermentation

2020 ◽  
Vol 22 (23) ◽  
pp. 8495-8510 ◽  
Author(s):  
Philipp Demling ◽  
Maximilian von Campenhausen ◽  
Carolin Grütering ◽  
Till Tiso ◽  
Andreas Jupke ◽  
...  
Keyword(s):  
Liquid Extraction ◽  
Stirred Tank ◽  
Biotechnological Production ◽  
Two Phase ◽  
Stirred Tank Reactors ◽  
Extraction Solvent ◽  
Liquid Liquid Extraction ◽  
Extraction Solvents ◽  
Selection Of

A multi-step reductive approach for the selection of in situ extraction solvents for bioprocesses was developed enabling a foam-free biotechnological production of rhamnolipids in stirred-tank reactors.

scholarly journals Recovery and Elimination of Phenolic Pollutants from Water Using [NTf2] and [Nf2]-Based Ionic Liquids

2019 ◽  
Vol 9 (20) ◽  
pp. 4321
Author(s):  
Sas ◽  
Domínguez ◽  
González
Keyword(s):  
Ionic Liquids ◽  
Phenolic Compounds ◽  
Extraction Yield ◽  
Liquid Extraction ◽  
Industrial Growth ◽  
Extraction Solvent ◽  
Phenolic Pollutants ◽  
Liquid Liquid Extraction ◽  
Volatile Organic ◽  
Extraction Solvents

At present, pollution is one of the most important problems worldwide. Industrial growth makes it necessary to develop techniques to remove pollutant substances from water, since water is an important natural source for life. One of these techniques is liquid–liquid extraction, which is used to remove phenolic compounds from wastewaters. Volatile organic compounds are used as common extraction solvents in liquid–liquid extractions; nevertheless, some of their properties, such as toxicity and volatility, make it necessary to replace them with other less toxic solvents. In this work, the capability of four ionic liquids, based on bis(trifluoromethylsulfonyl)imide [NTf2] and bis(fluorosulfonyl)imide [Nf2] anions and different cations to remove phenolic compounds from water was studied. The phenolic compounds used in this study were phenol, o-cresol, and 2-chlorophenol, and the effects of the extraction solvent and phenol structures were analyzed. For that, a liquid–liquid extraction was carried out, and the extraction yield was determined. In general, high extraction efficiencies were obtained for all studied systems, obtaining the highest extraction efficiencies using the pyrrolidinium cation-based ionic liquids.

Online in situ viscosity determination in stirred tank reactors by measurement of the heat transfer capacity

2016 ◽  
Vol 152 ◽  
pp. 116-126 ◽  
Author(s):  
Martin Wunderlich ◽  
Patrick P. Trampnau ◽  
Emanuel F. Lopes ◽  
Jochen Büchs ◽  
Lars Regestein
Keyword(s):  
Heat Transfer ◽  
Stirred Tank ◽  
Stirred Tank Reactors ◽  
Heat Transfer Capacity ◽  
Viscosity Determination

scholarly journals Countercurrent liquid–liquid extraction on paper

Lab on a Chip ◽  
2017 ◽  
Vol 17 (20) ◽  
pp. 3401-3404 ◽  
Author(s):  
Gert IJ. Salentijn ◽  
Maciej Grajewski ◽  
Elisabeth Verpoorte
Keyword(s):  
Liquid Extraction ◽  
Countercurrent Flow ◽  
Proof Of Concept ◽  
Two Phase ◽  
Liquid Liquid Extraction

We demonstrate the realization of two-phase countercurrent flow on paper and its use in a proof-of-concept liquid–liquid extraction.

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