Selective peroxidation of isobutane with molecular oxygen over molybdenum oxide catalyst for direct synthesis of di-tert-butyl peroxide

Li, Ning; Yuan, Mengzhen; Cui, Guoju; Xu, Jiale; Li, Xiuyi; Wang, Guowei; Zhu, Xiaolin; Li, Chunyi

doi:10.1016/j.cej.2023.143406

Chemical Engineering Journal

2023

DOI: 10.1016/j.cej.2023.143406

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Selective peroxidation of isobutane with molecular oxygen over molybdenum oxide catalyst for direct synthesis of di-tert-butyl peroxide

Ning Li,

Mengzhen Yuan,

Guoju Cui

et al.

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2024

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Cited by 3 publications

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Continuous flow synthesis of di‐tert‐butyl peroxide in microreactors and kinetic study

Xu,

Zhao,

Yang

et al. 2024

AIChE Journal

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Di‐tert‐butyl peroxide (DTBP) is a widely used organic peroxide. Its synthesis using tert‐butyl alcohol (TBA) and H2O2 via traditional batch processes has suffered from low space–time yield, uncontrollable product distribution, and safety issues. An efficient continuous‐flow microreaction system was proposed to enhance DTBP synthesis. Optimal reaction conditions were determined: a molar ratio of 1.5 (H2SO4/TBA) and 0.5 (H2O2/TBA), a reaction temperature of 50°C, and concentrations of 75 wt% H2SO4, 85 wt% TBA, and 50 wt% H2O2. A kinetic model was established, indicating that reducing local H2O2 concentration is key to increasing space‐time yield. Consequently, a novel two‐stage H2O2 feeding strategy was proposed, which improved the DTBP selectivity from 94.7% to 97.6% compared to the single‐stage feeding process. The maximum TBA conversion reached upto 98.7% within only 410 s, with a DTBP yield of 96.3%. With proper design and optimization, this microreaction system could be further applied to continuously synthesize other dialkyl peroxides.

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Continuous flow synthesis of di‐tert‐butyl peroxide in microreactors and kinetic study

Xu,

Zhao,

Yang

et al. 2024

AIChE Journal

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Efficient synthesis of the di‑tert‑butyl peroxide by isobutane selective peroxidation with molecular oxygen over sulfated titanium oxide

Li,

Yuan,

et al. 2024

Molecular Catalysis

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La_1–xSr_xFeO_3−δ Perovskite Oxide Nanoparticles for Low-Temperature Aerobic Oxidation of Isobutane to tert-Butyl Alcohol

Yamamoto,

Aihara,

Wachi

et al. 2024

ACS Appl. Mater. Interfaces

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The development of reusable solid catalysts based on naturally abundant metal elements for the liquid-phase selective oxidation of light alkanes under mild conditions to obtain desired oxygenated products, such as alcohols and carbonyl compounds, remains a challenge. In this study, various perovskite oxide nanoparticles were synthesized by a sol−gel method using aspartic acid, and the effects of A-and B-site metal cations on the liquid-phase oxidation of isobutane to tert-butyl alcohol with molecular oxygen as the sole oxidant were investigated. Iron-based perovskite oxides containing Fe 4+ such as BaFeO 3−δ , SrFeO 3−δ , and La 1−x Sr x FeO 3−δ exhibited catalytic performance superior to those of other Fe 3+ -and Fe 2+based iron oxides and Mn-, Ni-, and Co-based perovskite oxides. The partial substitution of Sr for La in LaFeO 3 significantly enhanced the catalytic performance and durability. In particular, the La 0.8 Sr 0.2 FeO 3−δ catalyst could be recovered by simple filtration and reused several times without an obvious loss of its high catalytic performance, whereas the recovered BaFeO 3−δ and SrFeO 3−δ catalysts were almost inactive. La 0.8 Sr 0.2 FeO 3−δ promoted the selective oxidation of isobutane even under mild conditions (60 °C), and the catalytic activity was comparable to that of homogeneous systems, including halogenated metalloporphyrin complexes. On the basis of mechanistic studies, including the effect of Sr substitution in La 1−x Sr x FeO 3−δ on surface redox reactions, the present oxidation proceeds via a radical-mediated oxidation mechanism, and the surface-mixed Fe 3+ /Fe 4+ valence states of La 1−x Sr x FeO 3−δ nanoparticles likely play an important role in promoting C−H activation of isobutane as well as decomposition of tert-butyl hydroperoxide.

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Selective peroxidation of isobutane with molecular oxygen over molybdenum oxide catalyst for direct synthesis of di-tert-butyl peroxide

Cited by 3 publications

References 33 publications

Continuous flow synthesis of di‐tert‐butyl peroxide in microreactors and kinetic study

Continuous flow synthesis of di‐tert‐butyl peroxide in microreactors and kinetic study

Efficient synthesis of the di‑tert‑butyl peroxide by isobutane selective peroxidation with molecular oxygen over sulfated titanium oxide

La_1–xSr_xFeO_3−δ Perovskite Oxide Nanoparticles for Low-Temperature Aerobic Oxidation of Isobutane to tert-Butyl Alcohol

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Selective peroxidation of isobutane with molecular oxygen over molybdenum oxide catalyst for direct synthesis of di-tert-butyl peroxide

Cited by 3 publications

References 33 publications

Continuous flow synthesis of di‐tert‐butyl peroxide in microreactors and kinetic study

Continuous flow synthesis of di‐tert‐butyl peroxide in microreactors and kinetic study

Efficient synthesis of the di‑tert‑butyl peroxide by isobutane selective peroxidation with molecular oxygen over sulfated titanium oxide

La1–xSrxFeO3−δ Perovskite Oxide Nanoparticles for Low-Temperature Aerobic Oxidation of Isobutane to tert-Butyl Alcohol

Contact Info

Product

Resources

About

La_1–xSr_xFeO_3−δ Perovskite Oxide Nanoparticles for Low-Temperature Aerobic Oxidation of Isobutane to tert-Butyl Alcohol