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Synthesis of TS-1 from an inorganic reactant system and its catalytic properties for allyl chloride epoxidation / Meng Wang in Industrial & engineering chemistry research, Vol. 51 N° 39 (Octobre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 39 (Octobre 2012) . - pp. 12730–12738 Titre : Synthesis of TS-1 from an inorganic reactant system and its catalytic properties for allyl chloride epoxidation Type de document : texte imprimé Auteurs : Meng Wang, Auteur ; Jicheng Zhou, Auteur ; Guiyue Mao, Auteur Année de publication : 2012 Article en page(s) : pp. 12730–12738 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Inorganic  reactant Résumé : TS-1 has been synthesized from an inorganic reactant system using Ti(SO4)2 as the titanium source, TPABr as the templating agent, and ammonia as the base to provide the alkalinity needed for crystallization. The effects of preparation parameters, such as titanium sources, crystallization temperature and time, SiO2/TiO2, TPABr/SiO2, ammonia/SiO2 and seed crystals on the physicochemical and catalytic properties of TS-1 were investigated in detail. The TS-1 samples were characterized by XRD, FT-IR, UV–vis, SEM, and ICP-AES, and the catalytic performance of TS-1 was evaluated in the epoxidation of allyl chloride. The results show that the catalytic performance of TS-1 synthesized using Ti(SO4)2 was excellent, and the crystal size of the catalyst was small. The synthesis conditions had a great influence on the properties of TS-1. The optimum synthesis conditions for the present system should employ a gel composition of SiO2/TiO2/NH3/TPABr/H2O = 1:0.022:2.5:0.15:35 and carry out the crystallization at 443 K for 3 days; the addition of seed in the synthesis gel played an important role in the crystallization of TS-1. Moreover, the stability and reusability of TS-1 prepared from this system was fine. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202524t [article] Synthesis of TS-1 from an inorganic reactant system and its catalytic properties for allyl chloride epoxidation [texte imprimé] / Meng Wang, Auteur ; Jicheng Zhou, Auteur ; Guiyue Mao, Auteur . - 2012 . - pp. 12730–12738. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 39 (Octobre 2012) . - pp. 12730–12738 Mots-clés : Inorganic  reactant Résumé : TS-1 has been synthesized from an inorganic reactant system using Ti(SO4)2 as the titanium source, TPABr as the templating agent, and ammonia as the base to provide the alkalinity needed for crystallization. The effects of preparation parameters, such as titanium sources, crystallization temperature and time, SiO2/TiO2, TPABr/SiO2, ammonia/SiO2 and seed crystals on the physicochemical and catalytic properties of TS-1 were investigated in detail. The TS-1 samples were characterized by XRD, FT-IR, UV–vis, SEM, and ICP-AES, and the catalytic performance of TS-1 was evaluated in the epoxidation of allyl chloride. The results show that the catalytic performance of TS-1 synthesized using Ti(SO4)2 was excellent, and the crystal size of the catalyst was small. The synthesis conditions had a great influence on the properties of TS-1. The optimum synthesis conditions for the present system should employ a gel composition of SiO2/TiO2/NH3/TPABr/H2O = 1:0.022:2.5:0.15:35 and carry out the crystallization at 443 K for 3 days; the addition of seed in the synthesis gel played an important role in the crystallization of TS-1. Moreover, the stability and reusability of TS-1 prepared from this system was fine. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202524t