Abstract
The separation of dissolved substances from the solvent in gas extraction is a necessary operation. Any suitable separation process can be employed, but processes are pRefserred which introduce no additional substances with only small changes in conditions of state. Additional fractionation of the extract during removal of the solvent from the extract, e.g., by stepwise reducing solvent power of the solvent, is a further aspect.
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References
Gehrig M(1986) Verfahren zur Gewinnung von Coffein aus verflüssigten oder überkritischen Gasen. Offenlegungsschrift DE 3443390 A1
Hoffmann R, Künstle K, Brunner G(1984) Production of liquid fuels and electricity from oil shale by hydrogen retorting. Preprints Int Symp High Pressure Chemical Engineering, Erlangen, pp 155 – 161
Perrut M (1989) High performance extract solvent-separators. In: Perrut M (ed) Proceedings of the International Symposium on Supercritical Fluids, Vol 2 , pp 627–632
Sarrade S, Rios GM, Veyre R, Soria R (1994) Supercritical CO2-extraction coupled with nanofiltration separation, interest and preliminary studies. In: Kiran E, Levelt-Sengers JMH (eds) Supercritical Fluids — Fundamentals for Application. NATO ASI, Kluwer
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© 1994 Springer-Verlag Berlin Heidelberg
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Brunner, G. (1994). The Separation of Solvent and Dissolved Substances: Methods for Precipitation. In: Gas Extraction. Topics in Physical Chemistry, vol 4. Steinkopff, Heidelberg. https://doi.org/10.1007/978-3-662-07380-3_6
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DOI: https://doi.org/10.1007/978-3-662-07380-3_6
Publisher Name: Steinkopff, Heidelberg
Print ISBN: 978-3-662-07382-7
Online ISBN: 978-3-662-07380-3
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