KINETIC STUDY OF SELECTIVE GAS-PHASE OXIDATION OF ISOPROPANOL TO ACETONE USING MONOCLINIC ZRO2 AS A CATALYST

• Main Authors: Mohammad Sadiq, Muhammad Ali, Razia Aman, Haroon Ur Rashid, Muhammad Naveed Umar
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2015-08-01
• Series: Química Nova
• Subjects: zirconia; oxidation; gas phase; isopropanol
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422015000700891&lng=en&tlng=en

Zirconia was prepared by a precipitation method and calcined at 723 K, 1023 K, and 1253 K in order to obtain monoclinic zirconia. The prepared zirconia was characterized by XRD, SEM, EDX, surface area and pore size analyzer, and particle size analyzer. Monoclinic ZrO2 as a catalyst was used for the gas-phase oxidation of isopropanol to acetone in a Pyrex-glass-flow-type reactor with a temperature range of 443 K - 473 K. It was found that monoclinic ZrO2 shows remarkable catalytic activity (68%) and selectivity (100%) for the oxidation of isopropanol to acetone. This kinetic study reveals that the oxidation of isopropanol to acetone follows the L-H mechanism.