Influence of Adding KH2PO4 on WO3/γ-Al2O3 Solid Acid Catalyst for the Synthesis of Acrylic Acid from Lactic Acid

Chang Yuan Wang; Gui Ying Liu; Chang Hai Du

doi:10.4028/www.scientific.net/AMR.912-914.178

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 912-914Influence of Adding KH2PO4 on WO3/γ-Al2O3 Solid...

Influence of Adding KH₂PO₄ on WO₃/γ-Al₂O₃ Solid Acid Catalyst for the Synthesis of Acrylic Acid from Lactic Acid

Abstract:

KH₂PO₄-WO₃/γ-Al₂O₃ solid acid catalyst was prepared by the method of impregnation. According to the lactic acid dehydration production of acrylic acid reaction, some parameters including the load of WO₃ on γ-Al₂O₃, the calcination temperature, the reaction temperature and lactic acid concentration were investigated. The results show that the conversion of lactic acid was 92%, and the selectivity of acrylic acid was 29% under the optimized preparation conditions.