Hydrogenation of 2-ethylanthraquinone over Pd/poly(4-vinylpyridyne) catalysts

• Autorzy: Drelinkiewicz A.
• Języki publikacji: EN

Abstrakty

EN

Polymer, namely poly(4-vinylpyridyne) (PVP) was used as a support for palladium catalysts acting in liquid phase hydrogenation of 2-ethylanthraquinone (eAQ), a key step in industrial production of hydrogen peroxide. The catalytic hydrogenation was carried out in a slurry reactor at atmospheric pressure of Hj and temperature 43 °C. The progress of eAQ hydrogenation over Pd/PVP catalyst was the same as observed earlier in the presence of Pd/SiO(2)- In initial stage of reaction eAQ was reduced with high selectivity to eAQH(2) (2-ethylanthrahydroquinone). In the further process termed "deep hydrogenation" hydrogenation of aromatic rings (formation of tetrahydroanthrahydroquinone H(4)eAQH(2)) and hydrogenolysis of carbon-oxygen bonds (formation of degradation products) in eAQH(2) proceeded. It was stated that in the presence of mass transport limitations the progress of reactions leading to the formation of "degradation products" was intensive.

Słowa kluczowe

EN

quinone; pyridine; palladium; catalyst; hydrogenation

PL

chinon; pirydyna; pallad; katalizator; uwodornienie

• Wydawca: Centrum Upowszechniania Nauki PAN
• Czasopismo: Bulletin of the Polish Academy of Sciences. Chemistry
• Rocznik: 2002
• Tom: Vol. 50, No. 1
• Strony: 109--119
• Opis fizyczny: Bibliogr. 10 poz.

Twórcy

autor

Drelinkiewicz A.

• Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland (Wydział Chemii, Uniwersytet Jagieloński)