Počet záznamů: 1

Separation of Azeotropic Mixture Acetone + Hexane by Using Polydimethylsiloxane Membrane.

SYSNO ASEP	0460855
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Separation of Azeotropic Mixture Acetone + Hexane by Using Polydimethylsiloxane Membrane.
Tvůrce(i)	Randová, A. (CZ) Bartovská, L. (CZ) Kačírková, Marie (UCHP-M)_RID Ledesma, Oscar Iván Hernández (UCHP-M) Červenková Šťastná, Lucie (UCHP-M)_{RID, ORCID, SAI} Izák, Pavel (UCHP-M)_{RID, ORCID, SAI} Žitková, Andrea (UCHP-M)_{RID, ORCID, SAI} Friess, K. (CZ)
Zdroj.dok.	Separation and Purification Technology. - : Elsevier - ISSN 1383-5866 Roč. 170, OCT 1 (2016), s. 256-263
Poč.str.	8 s.
Jazyk dok.	eng - angličtina
Země vyd.	GB - Velká Británie
Klíč. slova	azeotropic mixture ; PDMS membrane ; pervaporation
Vědní obor RIV	CI - Průmyslová chemie a chemické inženýrství
CEP	LD14094 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
Institucionální podpora	UCHP-M - RVO:67985858
UT WOS	000381950300029
EID SCOPUS	84977268510
DOI	10.1016/j.seppur.2016.06.061
Anotace	We report on possibilities of separation of the azeotropic mixture of acetone + hexane via sorption and pervaporation techniques using polydimethylsiloxane (PDMS) membrane. Acetone + hexane mixtures were studied at the temperature of 25 °C over the whole concentration range. The equilibrium and preferential sorption experiment were performed. Furthermore, the original physicochemical properties of acetone + hexane mixtures such as the excess surface tensions were determined and correlated using the Redlich-Kister equation. Determined differences in hexane and acetone sorption in PDMS, as well as in Flory-Huggins interaction parameters, are consistent with the differences in Hildebrand solubility parameters of pure liquids compared to PDMS, i.e. hexane and PDMS have identical value (14.9) which corresponds to higher sorption and higher rate of interaction with PDMS exhibited by hexane compared to acetone with 19.6. The pervaporation experiments confirmed that PDMS is able to separate this liquid mixture at the azeotropic point composition.
Pracoviště	Ústav chemických procesů
Kontakt	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Rok sběru	2017

Počet záznamů: 1