Selective oxidation of 2-isopropylnaphthalene to 2-isopropylnaphthalenehydroperoxide in a gas-liquid reaction system using CuO+NaOHaq catalyst

Takac S., Boyaci F., Ozdamar T.

CHEMICAL ENGINEERING JOURNAL, cilt.71, sa.1, ss.37-48, 1998 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 71 Sayı: 1
  • Basım Tarihi: 1998
  • Doi Numarası: 10.1016/s1385-8947(98)00104-1
  • Dergi Adı: CHEMICAL ENGINEERING JOURNAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.37-48
  • Anahtar Kelimeler: 2-isopropylnaphthalenehydroperoxide, 2-isopropylnaphthalene oxidation, product distribution and selectivity, gas-liquid reaction with mass transfer imitation free-radical chain reactions, NAPHTHALENE, ALKYLATION, PROPENE
  • Ankara Üniversitesi Adresli: Evet

Özet

The catalytic activities of CuO+NaOHaq and Cu2O+NaOHaq in the liquid-phase selective oxidation of 2-isopropylnaphthalene (2-IPN) to 2-isopropylnaphthalenehydroperoxide (2-IPNHP) were compared, and the process parameters using CuO+NaOHaq catalyst were investigated. It was found that the atomic ratio of copper to sodium ions of the catalyst system affected the product distribution, a temperature 100 degrees C was favourable for the selective production of 2-IPNHP, and the degree of back-mixing and liquid-phase mass transfer limitation markedly affected the conversion and selectivity. 2-IPNHP (1.254 mol dm(-3)) was produced from 2-IPN (6.9 mol dm-3) with 76% selectivity in a bubble column reactor with molecular oxygen as the oxidizing gas. An oxidation mechanism that depends on the unique combined catalytic behaviour of CuO+NaOHaq was proposed. (C) 1998 Elsevier Science S.A. All rights reserved.