Isomerization of cis-2-butene and trans-2-butene catalyzed by acid- and ion-exchanged smectite-type clays
Source abstract
Abstract
Abstract Two commercial acid-activated montmorillonites (F24 and F124) were exchanged with different cations (Al3+, Cr3+, Fe3+, and Ni2+). The catalytic activity of the acid- and the ion-exchanged clays was measured using the isomerization of cis- and trans-2-butene at 300 °C to yield the corresponding isomers. The order of activity for the acid- and the different cation-exchanged forms was: acid clays >Al3+≈Ni2+>Cr3+>Fe3+, which slightly correlated with the acidity values determined by cyclohexylamine desorption and the d001 spacing obtained from integral series of reflections. The maximum conversion for the isomerization of cis-2-butene was ≈75% for F24 and F124, while the maximum conversion for the isomerization of trans-2-butene was ≈53% for F24 and F124. Cracking produced propylene and methane and their amounts increased with the acidity.
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Research context
OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Mesoporous Materials and Catalysis · Zeolite Catalysis and Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. Shape selectivity in low-temperature reactions of C6-alkenes catalyzed by a Cu2+-exchanged montmorillonite10.1180/claymin.1981.016.4.02 ↗
2. Conversion of 1-hexene to di-hexyl ether using a Cu2+-smectite catalyst10.1016/0021-9517(82)90135-X ↗
3. Chemical conversions using sheet silicates: novel intermolecular dehydration of alcohols to ethers and polymers10.1039/c39810000427 ↗
4. Chemical conversions using sheet silicates: facile ester synthesis by direct addition of acids to alkenes10.1039/c39810000008 ↗
5. Organic reactions in a clay microenvironment10.1180/claymin.1983.018.4.02 ↗
6. Thermogravimetric and infrared study of the desorption of butylamine, cyclohexylamine and pyridine from Ni- and Co-exchanged montmorillonite10.1180/claymin.1991.026.4.04 ↗
7. Influence of the exchange cation and layer charge on the isomerization of α-pinene over SWy-2, SAz-1 and Sap-Ca10.1180/0009855013640001 ↗
8. Thermal desorption-degradation of cyclohexylamine over Ni2+- and Al3+-exchanged bentonite studied using evolved gas analysis (TG-EGA) and diffuse reflectance spectroscopy (DRIFTS)10.1039/b003587o ↗
9. Brønsted and Lewis acid catalysis with ion-exchanged clays10.1023/A:1019038806333 ↗
10. Condensation of olefins on clays. Gas–solid systems: Part I. Gravimetric methods10.1346/CCMN.1997.0450209 ↗
11. Reaction products of organic dye molecules with acid-treated montmorillonite10.1180/claymin.1983.018.4.10 ↗
12. The production of ethyl acetate from ethylene and acetic acid using clay catalysts10.1180/claymin.1983.018.4.08 ↗
13. Gas-phase catalytic alkylation of aromatic hydrocarbons10.1002/jctb.5020210307 ↗
14. In situ FT-IR study on the reaction path of skeletal isomerization of n-butane over different zeolites10.1016/S0169-4332(01)00285-9 ↗
15. Structural studies of Na-montmorillonite exchanged with Fe2+, Cr3+ and Ti4+ by N2 adsorption and EXAFS10.1016/j.jcis.2004.02.006 ↗
16. Kaplan, H., 1966. One step process of acid activating mineral clays and alkylating phenolic compounds with an alkene hydrocarbon. U.S. Patent 3,287, 422: 4 pp.
17. Tracer study of ethylene dimerization over nickel oxide–silica catalyst10.1016/0021-9517(70)90322-2 ↗
18. Catalysis of organic reactions by inorganic solids10.1021/ar00124a004 ↗
19. Acid character of sauconite. Increase in cation exchange capacity on aging in water and the role of Zn2+ and Al3+ ions10.1346/CCMN.1971.0190607 ↗
20. Pillared clays and pillared acid-activated clays: a comparative study of physical, acidity, and catalytic properties10.1006/jcat.1995.1109 ↗
21. The function of bleaching earths on the processing of palm, palm kernel and coconut oils10.1007/BF02541394 ↗
22. Adsorption of olefins on aluminum- and aluminum/tetramethylammonium-exchanged bentonites10.1346/000986002760832865 ↗
23. Influence of preparation method on the catalytic properties of acid-activated tetramethylammonium-exchanged clays10.1016/S0926-860X(01)01001-8 ↗
24. Surface acidity of smectites in relation to hydration, exchangeable cation and structure10.1346/CCMN.1968.0160508 ↗
25. Applied clay mineralogy today and tomorrow10.1180/000985599546055 ↗
26. A contribution to the study of the catalytic action of clays on the polymerization of styrene: I. Characterization of polystyrenes10.1180/claymin.1987.022.2.03 ↗
27. Alumina: catalyst and support: I. Alumina, its intrinsic acidity and catalytic activity10.1021/ja01495a021 ↗
28. On the pillaring and delamination of smectite clay catalysts by polyoxo cations of aluminum10.1016/0304-5102(84)85080-4 ↗
29. Charge reduction and regeneration in K+, Na+, Mg2+, Ni2+ and Co2+-exchanged wyoming bentonite10.1007/BF00764737 ↗
30. Acidity and 1-butene isomerization of synthesized smectite-type catalysts containing different divalent cations10.1016/S0926-860X(99)00198-2 ↗
31. The characterization of clay–organic systems10.1180/claymin.1983.018.4.03 ↗
32. Preparation and catalytic properties of cationic and anionic clays10.1016/S0920-5861(98)00038-8 ↗