IN254666: A process for the recovery of polyethylene glycol from spent aqueous two-phase system
Abstract
This invention relates to a process for the recovery of polyethylene glycol from spent aqueous two-phase systems. The aqueous two-phase system becomes a costly process because of the high cost of the polymers. Therefore, the polymer used has to be recovered once the extraction is complete. An attempt was made to recover the Polyethylene glycol using a simple thermal and organic solvent extraction method. The recovered polyethylene glycol shows all the physical properties similar to that of fresh polyethylene glycol. This a new method to recover polyethylene glycol in a powder form and can be carried out on a large scale.
Filing Date:
03-02-2006
Issue Date:
04-12-2012
Applicant:
CSIR-Central Food Technological Research Institute (CSIR-CFTRI), Mysuru
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