Influence of PEG's Molecular Weight on Different Polymer/Salt ATPS Phase Diagrams

• Type: Article in International Conference Proceedings Book
• Date: 2016

Authors

Eugénia A. Macedo (Author) FEUP; Kamila Wysoczanska (Author) FEUP

Conference proceedings International

Title: Book of abstracts PPEPPD 2016 - 14th International Conference on Properties and Phase Equilibria for Product and Process Design

Pages: 1-7

Indexing

ISI Proceedings

Scientific classification

CORDIS: Technological sciences

FOS: Engineering and technology

Other information

Abstract (EN): Binodal data for systems composed by polyethylene glycol (4000, 6000 or 8000) and citrate salts (sodium, potassium) was obtained using the cloud point method, at 298.15 K. Merchuk equation was applied for the modeling of binodal curves. Tie-lines for systems of PEG 4000 – citrate (sodium, potassium) and PEG 6000 – citrate (sodium, potassium) were determined by electrical conductivity and lyophilization, and correlated using Othmer-Tobias and Bancroft equations, to verify the reliability of the measured tie-lines. Data was compared with previous studies reported in the literature, giving an indication of which system is more efficient in terms of separation, taking into account possible combinations of salt’s cations and PEGs of different molecular weight chosen for ATPS.

Language: English

Type (Professor's evaluation): Scientific

Notes: ISBN electrónico: 978-989-20-6695-0 ISBN: 978-989-20-6694-3

No. of pages: 7