Research on Synthesis of Hexafluoropropylene

Qin, Jian; Shan, Fang Fang; Chen, Yao-Qing

doi:10.4028/www.scientific.net/amr.773.445

AMR

2013

DOI: 10.4028/www.scientific.net/amr.773.445

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Research on Synthesis of Hexafluoropropylene

Jian Qin¹,

Fang Fang Shan²,

Yao-Qing Chen³

Abstract: The synthesis of hexafluoropropylene oxide in fixed-bed reactor using HFP as raw materials and molecular oxygen as oxidant is studied in the present paper. The selectivity of HFPO on the Ag/γ-Al2O3 catalyst prepared by impregnation can get 41.8%. The influence of the Ag/γ-Al2O3 catalyst modified by impregnation-sedimentation method and first group metal salts on synthesis reaction was investigated, as well as process conditions.

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2024

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Direct Epoxidation of Hexafluoropropene Using Molecular Oxygen over Cu-Impregnated HZSM-5 Zeolites

Huang,

Guo,

et al. 2024

Processes

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This study explores a novel method of directly epoxidizing hexafluoropropene with molecular oxygen under gaseous conditions using a Cu/HZSM-5 catalytic system (Cu/HZ). An in-depth investigation was conducted on the catalytic performance of Cu-based catalysts on various supports and Cu/HZ catalysts prepared under different conditions. Cu/HZ catalysts exhibited better catalytic performance than other porous medium-supported Cu catalysts for the epoxidation of hexafluoropropene by molecular oxygen. The highest propylene oxide yield of 35.6% was achieved over the Cu/HZ catalyst prepared under conditions of 350 °C with a Cu loading of 1 wt%. By applying characterization techniques including XRD, BET, NH3-TPD, and XPS to different catalyst samples, the relationship between the interaction of Cu2+ and HZSM-5 and the reactivity of the catalyst was studied, thereby elucidating the influence of calcination temperature and loading on the reactivity. Finally, we further proposed the possible mechanism of how isolated Cu2+ and acid sites improve catalytic performance.

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Direct Epoxidation of Hexafluoropropene Using Molecular Oxygen over Cu-Impregnated HZSM-5 Zeolites

Huang,

Guo,

et al. 2024

Processes

View full text Add to dashboard Cite

show abstract

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Research on Synthesis of Hexafluoropropylene

Cited by 1 publication

References 5 publications

Direct Epoxidation of Hexafluoropropene Using Molecular Oxygen over Cu-Impregnated HZSM-5 Zeolites

Direct Epoxidation of Hexafluoropropene Using Molecular Oxygen over Cu-Impregnated HZSM-5 Zeolites

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