scholarly journals Application of carbonized ion exchange resin beads as catalyst support for gas phase hydrogenation processes

2019 ◽  
Vol 129 (1) ◽  
pp. 85-94 ◽  
Author(s):  
Ádám Prekob ◽  
Viktória Hajdu ◽  
Gábor Muránszky ◽  
István Kocserha ◽  
Béla Fiser ◽  
...  

Abstract Carbonized ion exchange resin beads were prepared as catalyst for gas phase hydrogenation processes. Amberlite IR 120 polystyrene based sulfonated ion exchange beads were carbonized at 900 °C. The process of carbonization was monitored by FTIR combined thermogravimetric analysis. During the carbonization formed sulfur dioxide, carbon dioxide and organic compounds. The carbon pearls were used as catalyst support for Pd nanoparticles. The catalyst was characterized by scanning electron microscopy and X-ray diffractometry. The diameters of the palladium nanoparticles on the catalyst surface were between 15 and 50 nm, but bigger aggregates were also detected. The catalyst was tested during the gas phased heterogeneous catalytic hydrogenation of 1-butene. The hydrogenation process was followed by FTIR measurements, 93% conversion was reached after 10 min.

1969 ◽  
Vol 47 (9) ◽  
pp. 1505-1506 ◽  
Author(s):  
H. Gee ◽  
R. I. Greyson

Dowex-1 ion exchange resin beads bind indoleacetate, naphthaleneacetate, and indoleproprionate ions and release them to plant tissue. We suggest this tool shows considerable potential in assessing the role of growth substances in morphogenesis. Some properties of IAA loaded beads are described.


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