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- W2358643478 abstract "Using H2O2 as primary oxidant and quaternary ammonium salt as the phase transfer agent, a new sort of reaction-controlled phase transfer catalysts were synthesized by different methods, and their catalytic performances were investigated. The reaction-controlled phase transfer catalysts were characterized by powder X-ray diffraction(XRD) and infrared spectroscopic analysis(IR). The results show that the new sort of reaction-controlled phase transfer catalyst can be successfully obtained by direct reaction of H3PW12O40 /H2O2 /R4N+Br- or the catalytic system of H2WO4 / H3PO4 / R4N+Br- / H2O2.The catalysts obtained by two methods have obvious catalytic activity in epoxidation." @default.
- W2358643478 created "2016-06-24" @default.
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- W2358643478 date "2014-01-01" @default.
- W2358643478 modified "2023-09-26" @default.
- W2358643478 title "Preparation, Characterization and Catalytic Properties of New Heteropoly Tungstophosphoric Quaternary Ammonium Salt Catalyst" @default.
- W2358643478 hasPublicationYear "2014" @default.
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