On the catalytic activity of Mo(VI)-grafted poly(thioether-amido-acid) crosslinked resins in liquid-phase cyclohexene epoxidation with t-butyl hydroperoxide

We have successfully prepared a novel passivation Ni/HY catalyst by the technologies of macerate-precipitatio.The catalysts are comprised of two contents: HY as carrier, Ni as active component，and we put it into the process of preparating aromatic amines.The nature of the catalysts was discussed based on the characterization results of BET , IR , SEM , XRD , TEM ,TPD , XPS and TPR . The catalytic hydrogenation technology for 2,4-dinitrobenzene in liquid phase can be an attractive and elegant routine for production of 2,4-tolylenediamine. The catalytic activity is evaluated at 2.2 MPa, 90 °C, 750r/min, solvent with reaction materials mass ratio of 60, catalyst with reaction materials mass ratio of 0.1. In the catalytic test, The experimental results over the catalyst showed that 2,4-dinitrobenzene and 2,4-tolylenediamine conversion and selective of 99.88% and 99.16% were obtained respectively.It is found that the catalyst is highly dispersion, stable, and reusable. No obvious deactivation of the catalyst was observed after repeated using twelve times.

Download Full-text

Mesoporous Polymeric Support Retaining High Catalytic Activity of Polyoxotungstate for Liquid-Phase Olefin Epoxidation using H2O2

ChemCatChem ◽

10.1002/cctc.201100045 ◽

2011 ◽

Vol 3 (9) ◽

pp. 1435-1438 ◽

Cited By ~ 28

Author(s):

Sanjeev P. Maradur ◽

Changbum Jo ◽

Dae-Heung Choi ◽

Kyeongyeon Kim ◽

Ryong Ryoo

Keyword(s):

Catalytic Activity ◽

Liquid Phase ◽

High Catalytic Activity ◽

Olefin Epoxidation ◽

Polymeric Support

Download Full-text

The concentration effect of adsorption nanocomplexes on the catalytic activity of skeletal nickel in liquid-phase hydrogenation of sodium maleate in aqueous organic environments

Protection of Metals and Physical Chemistry of Surfaces ◽

10.1134/s2070205113040102 ◽

2013 ◽

Vol 49 (4) ◽

pp. 451-454 ◽

Cited By ~ 4

Author(s):

M. V. Lukin ◽

A. V. Afineevskii

Keyword(s):

Catalytic Activity ◽

Liquid Phase ◽

Concentration Effect ◽

Skeletal Nickel ◽

Liquid Phase Hydrogenation ◽

Sodium Maleate

Download Full-text

Catalytic activity and selectivity of potassium-promoted Ultrafine particles of iron for liquid phase Fischer-Tropsch synthesis.

Journal of The Japan Petroleum Institute ◽

10.1627/jpi1958.32.319 ◽

1989 ◽

Vol 32 (6) ◽

pp. 319-322 ◽

Cited By ~ 3

Author(s):

Hiroyuki ITOH ◽

Tomoyuki ONO ◽

Shin-ichi NAGANO ◽

Eiichi KIKUCHI

Keyword(s):

Catalytic Activity ◽

Liquid Phase ◽

Ultrafine Particles ◽

Tropsch Synthesis ◽

Fischer Tropsch ◽

Fischer Tropsch Synthesis

Download Full-text

Synergy between Ionic Liquids and CuCl2 in Gas–Liquid Phase Reactions of Acetylene Hydrochlorination

Catalysts ◽

10.3390/catal9060504 ◽

2019 ◽

Vol 9 (6) ◽

pp. 504 ◽

Cited By ~ 4

Author(s):

Yi Yu ◽

Yuxue Yue ◽

Bolin Wang ◽

Haihua He ◽

Zhong-Ting Hu ◽

...

Keyword(s):

Catalytic Activity ◽

Ionic Liquids ◽

Activated Carbon ◽

Liquid Phase ◽

Dft Calculations ◽

Synergetic Effect ◽

Good Explanation ◽

Experimental Results ◽

Acetylene Hydrochlorination ◽

Reaction Media

We studied the acetylene hydrochlorination in gas–liquid phase reactions using ionic liquids (IL) as the reaction media and CuCl2 as the catalyst. The Cu-IL catalyst showed strong synergy between the IL and the Cu(II) active catalytic species. For [PrMIm]Cl, the Cu-IL catalyst exhibited significant enhancement of the catalytic activity in comparison with the CuCl2 catalyst supported on activated carbon and the IL alone as the catalyst. We have also performed DFT calculations of the reaction process, which provides a good explanation of our experimental results and for the synergetic effect. Our result suggests that ILs may be used to improve the activity of other metallic catalysts for the hydrochlorination reaction of acetylene.

Download Full-text

Pd/SiO2–AlPO4 systems. Influence of the preparation variables on their catalytic activity

Canadian Journal of Chemistry ◽

10.1139/v85-569 ◽

1985 ◽

Vol 63 (12) ◽

pp. 3471-3477 ◽

Cited By ~ 7

Author(s):

A. Alba ◽

M. A. Aramendia ◽

V. Borau ◽

C. Jimenez ◽

J. M. Marinas

Keyword(s):

Catalytic Activity ◽

Liquid Phase ◽

Reaction Temperature ◽

Hydrogen Pressure ◽

Pd Catalysts ◽

Metal Precursor ◽

Preparation Conditions ◽

Liquid Phase Hydrogenation ◽

Initial Hydrogen Pressure ◽

Catalyst Reduction

A study on the liquid phase hydrogenation of cyclohexene over a series of Pd catalysts supported on various SiO2–AlPO4 systems (using a concentration of 2.47 M, with methanol as solvent, the initial hydrogen pressure is 5 bar and reaction temperature 300 K) is reported in this paper. The reaction has been studied as a standard in order to determine the most suitable preparation conditions for these catalystsWe have also studied the influence of other factors such as the kind of support, the nature of the metal precursor, the previous calcination of the precursor, the addition of alkaline hydroxides, and the catalyst reduction with various agents, on the catalytic activity of different Pd-supported systems

Download Full-text

An Ni–P/C electro-catalyst with improved activity for the carbohydrazide oxidation reaction

RSC Advances ◽

10.1039/c6ra22925e ◽

2016 ◽

Vol 6 (94) ◽

pp. 91956-91959 ◽

Cited By ~ 6

Author(s):

Xinyue Cao ◽

Haining Wang ◽

Shanfu Lu ◽

Sian Chen ◽

Yan Xiang

Keyword(s):

Catalytic Activity ◽

Liquid Phase ◽

Oxidation Reaction ◽

Reduction Method ◽

Significant Enhancement ◽

Phase Reduction ◽

Electro Catalytic Activity

Ni–P/C NPs were prepared through a two-step liquid phase reduction method, which exhibited a significant enhancement for the electro-catalytic activity towards the carbohydrazide oxidation reaction compared with Ni/C NPs.

Download Full-text