Erratum to “The catalytic performance of sulphonated cross-linked polystyrene beads in the formation of isobornyl acetate” [Appl. Catal. A: Gen. 241 (2003) 185–203]

Dijs, Ivo J.; Ochten, Huibert L.F. van; Heijden, Alwies J.M. van der; Geus, J.W.; Jenneskens, Leonardus W.

doi:10.1016/s0926-860x(03)00202-3

Cited by 7 publications

(11 citation statements)

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“…Hence, MN500 exposed more sulfonic groups to reactants, which led to a much higher reaction rate. A similar behavior of MN500 compared with flexible resins was found in the liquid-phase hydro-acyloxy-addition of acetic acid to camphene [18].…”

Section: Calculationssupporting

confidence: 64%

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Liquid-Phase Oligomerization of 1-Hexene Catalyzed by Macroporous Ion-Exchange Resins

et al. 2011

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Oligomerization of pure 1-hexene catalyzed by macroporous ion-exchange resins was performed in batch experiments at 350-390 K and 2 MPa. At 373 K, after 6 h, 1-hexene conversion was practically complete and the selectivity to dimers was 56%, that to trimers 0.8 and 43.2% to double-bond isomerization. By assuming an homogeneous kinetic model for olefin dimerization of second order reaction, a value of 64-68 kJ mol -1 for apparent activation energy was obtained.

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Section: Calculationssupporting

confidence: 64%

“…The boiling point of each alkene is very similar to that of the alkane with the same number of carbon atoms. So, boiling points of trimers are around 588 K and those for tetramers around 663 K, because for n-parafines C 18 and C 24 are 589 K and 664 K, respectively.…”

Section: Calculationsmentioning

confidence: 99%

Liquid-Phase Oligomerization of 1-Hexene Catalyzed by Macroporous Ion-Exchange Resins

et al. 2011

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“…The determination of the surface acidity by acid-base titration followed the procedures described by Dijs et al 15 The procedure consisted of the suspension of 0.5 g of solid material in 50 mL of 0.1 mol L -1 KCl solution. The solution was agitated for 20 min and titrated with 0.2 mol L -1 KOH in the presence of phenolphthalein.…”

Section: Characterizationmentioning

confidence: 99%

Functionalization of Bentonite and Vermiculite after the Creation of Structural Defects through an Acid Leaching Process

Moraes

Miranda

Angélica

et al. 2017

J. Braz. Chem. Soc.

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The synthesis and use of functionalized materials is growing every year. Thus, this work presents a methodology for the functionalization of bentonite and vermiculite after the acid leaching of the raw materials. Leaching was performed with sulfuric acid (H 2 SO 4 ), and the functionalization was performed with (3-mercaptopropyl)trimethoxysilane (MPTS), which was oxidized after being anchored to the support. Compared to the results in the literature for directly functionalized raw bentonite, the materials had a greater number of anchored propyl sulfonic acid groups, and the greatest number of these groups led to an increase in the acidity of the raw materials. The raw and functionalized bentonite and vermiculite were characterized by X-ray diffraction (XRD), energy dispersive X-ray (EDX), thermogravimetric analysis (TGA), N 2 adsorption and the surface acidity was determined by acid-base titration.

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“…Chemical state of the catalyst was examined by 13 C CP-MAS NMR analysis (Bruker, AVANCE 400 WB) to ensure the successful grafting of -SO 3 H group on the surface of MCF silica [17][18][19]. Acid-base titration [27,28] was carried out to measure the acid amount of catalyst. In a typical measurement, 0.1 g of catalyst was dispersed in 30 ml of 0.1 M KCl solution.…”

Section: Catalyst Characterizationmentioning

confidence: 99%

Direct synthesis of hydrogen peroxide from hydrogen and oxygen over palladium catalyst supported on SO3H-functionalized MCF silica: Effect of calcination temperature of mesostructured cellular foam silica

Park

Kim

Chung

et al. 2011

Korean J. Chem. Eng.

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Palladium catalysts supported on SO 3 H-functionalized MCF silica (Pd/SO 3 H-MCF-T (T=450, 550, 650, 750, 850, and 950)) were prepared with a variation of calcination temperature (T, o C) of MCF silica. They were then applied to the direct synthesis of hydrogen peroxide from hydrogen and oxygen. Conversion of hydrogen, selectivity for hydrogen peroxide, and yield for hydrogen peroxide showed volcano-shaped curves with respect to calcination temperature of MCF silica. Yield for hydrogen peroxide increased with increasing acid density of Pd/SO 3 H-MCF-T catalysts. Thus, acid density of Pd/SO 3 H-MCF-T catalysts played an important role in determining the catalytic performance in the direct synthesis of hydrogen peroxide. Pd/SO 3 H-MCF-T catalysts efficiently served as an acid source and as an active metal catalyst in the direct synthesis of hydrogen peroxide.

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Erratum to “The catalytic performance of sulphonated cross-linked polystyrene beads in the formation of isobornyl acetate” [Appl. Catal. A: Gen. 241 (2003) 185–203]

Cited by 7 publications

References 0 publications

Liquid-Phase Oligomerization of 1-Hexene Catalyzed by Macroporous Ion-Exchange Resins

Liquid-Phase Oligomerization of 1-Hexene Catalyzed by Macroporous Ion-Exchange Resins

Functionalization of Bentonite and Vermiculite after the Creation of Structural Defects through an Acid Leaching Process

Direct synthesis of hydrogen peroxide from hydrogen and oxygen over palladium catalyst supported on SO3H-functionalized MCF silica: Effect of calcination temperature of mesostructured cellular foam silica

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