The Physicochemical and Catalytic Properties of Clay Extrudates in Cyclization of Citronellal | Sciact - CRIS-system of Boreskov Institute of Catalysis

The Physicochemical and Catalytic Properties of Clay Extrudates in Cyclization of Citronellal Full article

Journal

Applied Catalysis A: General
ISSN: 0926-860X , E-ISSN: 1873-3875

Output data

Year: 2022, Volume: 629, Article number : 118426, Pages count : 11 DOI: 10.1016/j.apcata.2021.118426

Tags

Clay; Extrudates; Citronellal cyclization; Bentonite; Attapulgite; Sepiolite; Palygorskite

Authors

Vajglová Zuzana ¹ , Simakova Irina L. ² , Eränen Kari ¹ , Mäki-Arvela Päivi ¹ , Kumar Narendra ¹ , Peurla Markus ³ , Tolvanen Stiina ¹ , Efimov Alexander ⁴ , Hupa Leena ¹ , Peltonen Jouko ¹ , Murzin Dmitry Yu. ¹

Affiliations

1	Åbo Akademi University, Johan Gadolin Process Chemistry Centre, Henriksgatan 2, Turku/Åbo 20500, Finland
2	Boreskov Institute of Catalysis, Novosibirsk 630090, Russia
3	Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, FI-20520 Turku, Finland
4	Tampere University, Korkeakoulunkatu 8, 33720 Tampere, Finland

Funding (2)

1	Ministry of Science and Higher Education of the Russian Federation	0239-2021-0008
2	Academy of Finland

Four clay materials, namely, bentonite, bleaching earth, attapulgite and sepiolite, were shaped into the cylindrical body by extrusion. Clays were characterized in depth by TEM, SEM-EDX, N2 physisorption, pyridine FTIR, pH measurements, contact angle measurements, 27Al MAS NMR, and the crush test. Catalytic properties were investigated in the citronellal cyclization as a model reaction. The reaction was performed in the trickle-bed reactor at 70 °C, 10 bar of Ar with 0.086 M initial citronellal concentration in cyclohexane. The best results were obtained over attapulgite with isopulegols yield of 24% and stereoselectivity to the desired isopulegol isomer of 61%. Attapulgite had the highest meso-to-micropore volume ratio, the highest basicity, a low Brønsted-to-Lewis acid sites ratio, and the lowest amount of Brønsted acid sites compared to other extrudates. In addition, same clay exhibited the highest mechanical strength of extrudates.

Vajglová Z. , Simakova I.L. , Eränen K. , Mäki-Arvela P. , Kumar N. , Peurla M. , Tolvanen S. , Efimov A. , Hupa L. , Peltonen J. , Murzin D.Y.
The Physicochemical and Catalytic Properties of Clay Extrudates in Cyclization of Citronellal
Applied Catalysis A: General. 2022. V.629. 118426 :1-11. DOI: 10.1016/j.apcata.2021.118426 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Aug 26, 2021
Accepted:	Nov 2, 2021
Published online:	Nov 9, 2021
Published print:	Jan 5, 2022

Web of science:	WOS:000724337100001
Scopus:	2-s2.0-85118892091
Elibrary:	47754130
Chemical Abstracts:	2021:2512462
Chemical Abstracts (print):	177:45049
OpenAlex:	W3211693236

DB	Citing
Scopus	14
Web of science	14
OpenAlex	13