Enhancing the selectivity of Pare-dihydroxybenzene in hollow titanium silicalite zeolite catalyzed phenol hydroxylation by introducing acid-base sites
Number of Authors: 5
2016 (English)In: Catalysis communications, ISSN 1566-7367, E-ISSN 1873-3905, Vol. 80, 49-52 p.Article in journal (Refereed) Published
A facile and effective method for enhancing the selectivity of Pare-dihydroxybenzene in phenol hydroxylation has been developed by introducing acid-base sites (MgO-Al2O3 binary oxide) to the micropores of hollow titanium silicalite (HTS, Ti/Si = 25) zeolite. For MgO-Al2O3 modified HTS zeolites, the biggest ratio of para- to ortho-dihydroxybenzene is over 2, while that is close to 1 for conventional HTS zeolite. The high paredihydroxybenzene selectivity is ascribed to the steric hindrance and the synergistic effect between acid-base sites of mixed oxide and tetrahedral framework Ti species in HTS zeolite.
Place, publisher, year, edition, pages
2016. Vol. 80, 49-52 p.
Phenol hydroxylation, HTS zeolite, Para-dihydroxybenzene, Acidic-basic sites
IdentifiersURN: urn:nbn:se:su:diva-131205DOI: 10.1016/j.catcom.2016.03.011ISI: 000375738800011OAI: oai:DiVA.org:su-131205DiVA: diva2:938820