NDLI: Facile synthesis of 5A zeolite from attapulgite clay for adsorption of n-paraffins

Content Provider	Springer Nature Link
Author	Chen, Le Wang, Yue Wei He, Ming Yang Chen, Qun Zhang, Zhi Hui
Copyright Year	2016
Abstract	5A zeolites were facilely synthesized from attapulgite clay and sodium aluminate precursors. The optimum synthesis condition for 4A zeolite (Na-form) were H2O/attapulgite ratio of 40:1 volume/mass, NaOH/attapulgite mass ratio of 2.35:1, the crystallization time was 4 h at 80–85 °C. The 4A zeolite was converted to related 5A zeolite (Ca-form) through ionic exchanges using calcium chloride solution with the Si/Al mole ratio of 1.3. SEM images demonstrated that as-synthesized 5A zeolites are ordered cubic crystals, average crystals length dimension is 1–2 μm. And the zeolites product had a specific surface area of 482 m2 g−1 and total pore volume of 0.274 cm3 g−1. The static adsorption experiments showed that the equilibrium adsorption capacities of n-decane and n-pentadecane on produced 5A zeolite were 0.253 and 0.510 g g−1, respectively. And the adsorption equilibrium time of n-decane and n-pentadecane on 5A zeolite were 45 and 60 min, respectively. The experimental adsorption data of n-decane and n-pentadecane on three zeolites could be properly fitted by the Langmuir–Freundlich isotherm model.
Starting Page	309
Ending Page	314
Page Count	6
File Format	PDF
ISSN	09295607
Journal	Adsorption
Volume Number	22
Issue Number	3
e-ISSN	15728757
Language	English
Publisher	Springer US
Publisher Date	2016-02-11
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	5A Zeolite Attapulgite clay Adsorption n-Paraffin Industrial Chemistry/Chemical Engineering Surfaces and Interfaces, Thin Films Engineering Thermodynamics, Heat and Mass Transfer
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering Surfaces and Interfaces

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