Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1995-02-02
1996-04-09
Fortuna, Ana M.
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
210651, 210774, 585818, 208290, B01D 6100
Patent
active
055058558
ABSTRACT:
A process for purification of a substantially non-aqueous, viscous, contaminated organic liquid, in particular tri-ethylene glycol, comprising heating the contaminated organic liquid to a temperature in the range of about 70.degree. C. to about 100.degree. C. and passing the contaminated organic liquid through a reverse osmosis membrane at a pressure in the range of about 400 psig to 650 psig. As a result of passing through the reverse osmosis membrane, a purified organic liquid is formed on one side of the membrane and a retentate with contaminants removed from the contaminated organic liquid is formed on the other side of the reverse osmosis membrane.
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Fortuna Ana M.
Gas Research Institute
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