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A Novel application of methanesulfonic acid as catalyst for the alkylation of olefins with aromatics / Ying Tian in Industrial & engineering chemistry research, Vol. 51 N° 42 (Octobre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 42 (Octobre 2012) . - pp. 13627-13631 Titre : A Novel application of methanesulfonic acid as catalyst for the alkylation of olefins with aromatics Type de document : texte imprimé Auteurs : Ying Tian, Auteur ; Xuan Meng, Auteur ; Ji-yun Duan, Auteur Année de publication : 2012 Article en page(s) : pp. 13627-13631 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Alkylation  Catalyst Résumé : Methanesulfonic acid (MSA) was used as the catalyst to remove trace olefins from aromatics (referred to as oil). The reactions were conducted in a round-bottom flask equipped with a reflux condenser and oil-bath under atmospheric pressure. The influences of the reaction temperature, the mass ratio of MSA to oil, and the reaction time were investigated. The experimental results showed that after a 40 min reaction time at 413 K, the olefins conversion of 89.45% was obtained with a mass ratio of MSA to oil of 6%. The catalyst was reused five times without a reactivation treatment, and the olefins conversion reached 66.02% the fifth time. More importantly, the catalytic mechanism was also proposed in this work. In addition, as MSA is biodegradable, this method represents an environmentally benign route to remove trace olefins from aromatics. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26508186 [article] A Novel application of methanesulfonic acid as catalyst for the alkylation of olefins with aromatics [texte imprimé] / Ying Tian, Auteur ; Xuan Meng, Auteur ; Ji-yun Duan, Auteur . - 2012 . - pp. 13627-13631. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 42 (Octobre 2012) . - pp. 13627-13631 Mots-clés : Alkylation  Catalyst Résumé : Methanesulfonic acid (MSA) was used as the catalyst to remove trace olefins from aromatics (referred to as oil). The reactions were conducted in a round-bottom flask equipped with a reflux condenser and oil-bath under atmospheric pressure. The influences of the reaction temperature, the mass ratio of MSA to oil, and the reaction time were investigated. The experimental results showed that after a 40 min reaction time at 413 K, the olefins conversion of 89.45% was obtained with a mass ratio of MSA to oil of 6%. The catalyst was reused five times without a reactivation treatment, and the olefins conversion reached 66.02% the fifth time. More importantly, the catalytic mechanism was also proposed in this work. In addition, as MSA is biodegradable, this method represents an environmentally benign route to remove trace olefins from aromatics. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26508186

Synthesis of Cd hydroxide particles with hollow structures by a one - step process / Ying Tian in Industrial & engineering chemistry research, Vol. 50 N° 23 (Décembre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 23 (Décembre 2011) . - pp. 13585–13588 Titre : Synthesis of Cd hydroxide particles with hollow structures by a one - step process Type de document : texte imprimé Auteurs : Ying Tian, Auteur ; Xin Cui, Auteur ; Fangming Jin, Auteur Année de publication : 2012 Article en page(s) : pp. 13585–13588 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Hydroxide Résumé : Cd4Cl3(OH)5 particles, for use as a CdS photocatalyst precursor with hollow morphology, were successfully synthesized at room temperature via a one-step process, using boric acid or sodium borate as a buffer. The identification of the morphology and characterization of synthesized particles by high-resolution transmission electron microscopy coupled with energy-dispersive X-ray analysis (HR-TEM/EDX) and X-ray diffraction (XRD) revealed that Cd4Cl3(OH)5 was the main compound. with a size of 40–100 nm, and boron was mostly concentrated on the shell covering nanosized Cd4Cl3(OH)5 particles. Compared with the traditional synthetic methods, this approach has benefits of direct, easy synthesis without the need for additional treatment. It is suggested that boron should play an important role in the synthesis of hollow morphology. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie201518t [article] Synthesis of Cd hydroxide particles with hollow structures by a one - step process [texte imprimé] / Ying Tian, Auteur ; Xin Cui, Auteur ; Fangming Jin, Auteur . - 2012 . - pp. 13585–13588. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 23 (Décembre 2011) . - pp. 13585–13588 Mots-clés : Hydroxide Résumé : Cd4Cl3(OH)5 particles, for use as a CdS photocatalyst precursor with hollow morphology, were successfully synthesized at room temperature via a one-step process, using boric acid or sodium borate as a buffer. The identification of the morphology and characterization of synthesized particles by high-resolution transmission electron microscopy coupled with energy-dispersive X-ray analysis (HR-TEM/EDX) and X-ray diffraction (XRD) revealed that Cd4Cl3(OH)5 was the main compound. with a size of 40–100 nm, and boron was mostly concentrated on the shell covering nanosized Cd4Cl3(OH)5 particles. Compared with the traditional synthetic methods, this approach has benefits of direct, easy synthesis without the need for additional treatment. It is suggested that boron should play an important role in the synthesis of hollow morphology. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie201518t