Synthesis of 2,6-Xylenol by Alkylation of Phenol with Methanol
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Cited by (54)
A novel vapor-phase catalytic synthetic approach for industrial production of 1,1,1,3,3,3-hexafluoroisopropyl methylether
2020, Applied Catalysis A: GeneralCitation Excerpt :Our study not only paves the way for industrial production of HFE-356mmz, but also expands the application of metal fluorides. Metal fluorides (AlF3, MgF2, CaF2, SrF2, and BaF2) were prepared by fluorination of the corresponding metal oxides (Al2O3, MgO, CaO, SrO, and BaO) [21,22], in which MgO and Al2O3 were obtained by a precipitation method. The typical process for synthesizing MgF2 was as follows: Mg(NO3)2 (148 g, 1.0 mol) was dissolved in distilled water (400 ml) and stirred for 1 h, then ammonium hydroxide (5 %) was slowly added to the solution at room temperature until pH = 8.5 was reached.
The constructing of Si-Fe-Sn co-solution surface of composite iron oxide catalyst via vapor methanol pretreatment and application in gaseous phenolic alkylation
2019, Solid State SciencesCitation Excerpt :Many processes adopt hematite materials as the main phase of their catalysts, such as water-gas shifting (WGS) [12], methanol decomposition [14–16], and phenols alkylation [17–28]. For the gaseous phenolic alkylation, H. Grabowska et al. [21] used Cr, Si, and K as additives to modify the iron oxide catalysts, and finally developed a Fe-Si-Cr-K catalyst with excellent activity (93.8% of yield) for the synthesis of 2,6-dimethylphenol by alkylation of phenol with methanol. These catalysts were also successfully applied to the gaseous alkylation of naphthols with C1-C3 alcohol and exhibited excellent activity with an ortho-alkylation selectivity of more than 98% [19].
Effect of calcination temperature on the structure and hydroxylation activity of Ni <inf>0.5</inf> Cu <inf>0.5</inf> Fe <inf>2</inf> O <inf>4</inf> nanoparticles
2011, Applied Surface ScienceCitation Excerpt :It indicated that the hydroxylation activity of spinels depends on the distribution of cations among the octahedral and tetrahedral sites. On the other hand, the octahedral sites are exclusively exposed at the surface of the spinel crystallites and thus the catalytic activity is mainly related to the octahedral cations [47,48]. It has been reported that the octahedral ions presented in the spinel crystal lattice were responsible for the activity towards oxidation reactions [43,49].
Effect of synthesis method of LSCF perovskite on its catalytic properties for phenol methylation
2010, Solid State IonicsCitation Excerpt :The synthesis of phenol methyl derivatives has been the subject of numerous investigations. A wide spectrum of catalysts for the gas phase phenol methylation have been reported in the literature, including single metal oxides [16–20], mixed metal oxides [21–24], especially these ones containing iron oxide [25,26], zeolites [27–29], spinels, ferrites and others [30–34]. Previous studies on alkylation of phenol by methanol showed the role of acid–base properties of catalyst on its activity and selectivity towards desirable reaction products [35,36].
Effect of preparation method on the surface properties and activity of Ni<inf>0.7</inf>Cu<inf>0.3</inf>Fe<inf>2</inf>O<inf>4</inf> nanoparticles
2010, Journal of Alloys and CompoundsCatalytic methylation of phenol on MgO - Surface chemistry and mechanism
2010, Journal of Catalysis