Oxidative acetoxylation of propylene in the presence of palladium catalysts

Author(s):  
S. F. Politanskii ◽  
A. M. Shkitov ◽  
E. S. Shpiro ◽  
G. V. Antoshin ◽  
Kh. M. Minachev ◽  
...  
1976 ◽  
Vol 7 (6) ◽  
pp. no-no
Author(s):  
E. N. FRANKEL ◽  
W. K. ROHWEDDER ◽  
W. E. NEFF ◽  
D. WEISLEDER

Author(s):  
S. F. Politanskii ◽  
A. M. Shkitov ◽  
V. V. Kharlamov ◽  
Kh. M. Minachev ◽  
I. I. Moiseev ◽  
...  

1993 ◽  
Vol 36 (3) ◽  
pp. 235-238
Author(s):  
Masahiko MATSUKATA ◽  
Korekazu UEYAMA ◽  
Kimikazu KITAKADO ◽  
Toshinori KOJIMA

1975 ◽  
Vol 40 (22) ◽  
pp. 3247-3253 ◽  
Author(s):  
Edwin N. Frankel ◽  
William K. Rohwedder ◽  
William E. Neff ◽  
David Weisleder

1987 ◽  
Vol 52 (8) ◽  
pp. 2019-2027 ◽  
Author(s):  
Libor Červený ◽  
Nguyen Thi Du ◽  
Ivo Paseka

Palladium catalysts have been used to study the hydrogenation of 1-phenyl-2-butene-1-ol which is accompanied by several side reactions considered to be acid-catalysed. Another model reaction studied was dehydration and subsequent hydrogenation or hydrogenolysis of 1-phenyl-1,3-propanediol to 3-phenyl-1-propanol, accompanied by formation of propylbenzene. The dehydration and propylbenzene formation can be again classified as acid-catalysed reactions. Another one is methanolysis of styrene oxide taking place under conditions of liquid phase hydrogenation due to the acid properties of Pd-H systems. Hydrogenation activity of Pd catalysts was tested by hydrogenation of cyclohexene. Sixteen Pd catalysts on different supports and with different content of active component were used, their activity and selectivity was determined and the effect of variable parameters in the synthesis of these catalysts on the activity and selectivity is discussed.


2021 ◽  
pp. 116298
Author(s):  
Paul Cowling ◽  
Mark Bradley ◽  
Annamaria Lilienkampf
Keyword(s):  

2020 ◽  
pp. 100287
Author(s):  
Nating Yang ◽  
Yonghui Zhao ◽  
Hao Zhang ◽  
Weikai Xiang ◽  
Yuhan Sun ◽  
...  

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1172
Author(s):  
Ádám Prekob ◽  
Mahitha Udayakumar ◽  
Gábor Karacs ◽  
Ferenc Kristály ◽  
Gábor Muránszky ◽  
...  

Glassy carbon foam (GCF) catalyst supports were synthesized from waste polyurethane elastomers by impregnating them in sucrose solution followed by pyrolysis and activation (AC) using N2 and CO2 gas. The palladium nanoparticles were formed from Pd(NO3)2. The formed palladium nanoparticles are highly dispersive because the mean diameters are 8.0 ± 4.3 (Pd/GCF), 7.6 ± 4.2 (Pd/GCF-AC1) and 4.4 ± 1.6 nm (Pd/GCF-AC2). Oxidative post-treatment by CO2 of the supports resulted in the formation of hydroxyl groups on the GCF surfaces, leading to a decrease in zeta potential. The decreased zeta potential increased the wettability of the GCF supports. This, and the interactions between –OH groups and Pd ions, decreased the particle size of palladium. The catalysts were tested in the hydrogenation of nitrobenzene. The non-treated, glassy-carbon-supported catalyst (Pd/GCF) resulted in a 99.2% aniline yield at 293 K and 50 bar hydrogen pressure, but the reaction was slightly slower than other catalysts. The catalysts on the post-treated (activated) supports showed higher catalytic activity and the rate of hydrogenation was higher. The maximum attained aniline selectivities were 99.0% (Pd/GCF-AC1) at 293 K and 98.0% (Pd/GCF-AC2) at 323 K.


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