Skip to main content
SpringerLink
Log in

Phenol alkylation with methanol: effect of sodium content and ammonia selective poisoning of an HY zeolite

  • Published:
Catalysis Letters Aims and scope Submit manuscript

Abstract

Sodium exchange and ammonia selective poisoning of the acid sites of an HY zeolite (Si/Al=20) were carried out and their effects on the catalytic properties for the alkylation of phenol with methanol (200‡C, 1 atm and N2/reactants molar ratio of 4) were evaluated. Results show that the reaction is highly sensitive to the number and strength of the acid sites of the catalyst. A decrease in the number of acid sites by sodium exchange of the protons or by ammonia selective poisoning produces important changes in the selectivity of the reaction. In fact, a high increase in the anisole/cresol ratio is observed as the percentage of exchanged sodium in the zeolite increases, while the ammonia selective poisoning shows that at low desorption temperatures (⩽250‡C) only anisole is formed while at higher desorption temperatures both anisole and cresols were observed. These results show that anisole formation requires sites with lower acid strength compared to those necessary for cresol formation.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. H.G. Franck and J.W. Stadelhofer, in:Industrial Aromatic Chemistry (Springer, Berlin, 1987) p. 163.

    Google Scholar 

  2. W. Höelderich, in:New Developments in Zeolite Science and Technology, eds. Y. Muramaki et al. (Kodansha/Eisevier, Tokyo/Amsterdam, 1986) p. 827.

    Google Scholar 

  3. H. van Bekkum in:Heterogeneous Catalysis and Fine Chemicals, Stud. Surf. Sci. Catal., Vol. 41, eds. M. Guisnet et al. (Elsevier, Amsterdam, 1988) p. 23.

    Google Scholar 

  4. S. Balsama, P. Beltrame, P.L. Beltrame, P. Carniti, L. Forni and G. Zuretti, Appl. Catal. 13 (1984) 161.

    Google Scholar 

  5. R.F. Parton, J.M. Jacobs, D.R. Huybrechts and P.A. Jacobs, in:Zeolites as Catalysts, Sorbents and Detergent Builders, Stud. Surf. Sci. Catal., Vol. 46 (Elsevier, Amsterdam, 1989) p. 163.

    Google Scholar 

  6. M. Renaud, P.D. Chantal and S. Kaliaguine, J. Chem. Eng. 64 (1986) 787.

    Google Scholar 

  7. M. Marczewki, G. Pérot and M. Guisnet, in:Heterogeneous Catalysis and Fine Chemicals, Stud. Surf. Sci. Catal., Vol. 41, eds. M. Guisnet et al. (Elsevier, Amsterdam, 1988) p. 273.

    Google Scholar 

  8. M. Marczewki, J.P. Bodibo, F. Bouchet, P. Magnoux, G. Pérot and M. Guisnet, AIChE Spring National Meeting, Houston, April 1989.

  9. J.P. Bodibo, Doctoral Thesis, Poitiers (1991).

  10. M.R. Goldwasser, L. Garcia, G. Giannetto, M. Guisnet and P. Magnoux, in:Catalysis of Organic Reactions, eds. M.G. Skaros and M.L. Prunier (Dekker, New York, 1994) p. 509.

    Google Scholar 

  11. Y. Ojeda, M.R. Goldwasser and M. Torrealba, in:Catalysis of Organic Reactions, eds. M.G. Skaros and M.L. Prunier (Dekker, New York, 1994) p. 535.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Escuela de Ingeniería Química, Facultad de Ingeniería, U. C. V., Apartado 47100, 1040-A, Caracas, Venezuela

    L. García & G. Giannetto

  2. Escuela de Quimica, Facultad de Ciencias, U. C. V., Apartado 47102, 1040-A, Caracas, Venezuela

    M. R. Goldwasser

  3. Catálisis en Quimica Orgánica, URA CNRS 350, Université de Poitiers, 40 Avenue du Recteur Pineau, 86022, Poitiers Cedex, France

    M. Guisnet & P. Magnoux

Authors
  1. L. García
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. G. Giannetto
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. M. R. Goldwasser
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. M. Guisnet
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. P. Magnoux
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

García, L., Giannetto, G., Goldwasser, M.R. et al. Phenol alkylation with methanol: effect of sodium content and ammonia selective poisoning of an HY zeolite. Catal Lett 37, 121–123 (1996). https://doi.org/10.1007/BF00813529

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00813529

Keywords

Search

Navigation