Preparation and Application of P-Mo-W Heteropoly Acid Catalyst

Jun Deng; Xue Jun Zhu; Shuai Xie

doi:10.4028/www.scientific.net/AMR.838-841.2374

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 838-841Preparation and Application of P-Mo-W Heteropoly...

Preparation and Application of P-Mo-W Heteropoly Acid Catalyst

Abstract:

the phosphorus-molybdenum-tungsten heteropoly acid catalyst is prepared from such raw materials as phosphoric acid, sodium molybdate, sodium tungstate and characterized by infrared spectrum. Glyoxylic acid is prepared by catalytic oxidation of glyoxal in the presence of the self-prepared heteropoly acid catalyst and oxidizing agent hydrogen peroxide. The impact of catalytic reaction temperature, added catalyst, and use level of the hydrogen peroxide on the reaction for synthesizing the glyoxylic acid is investigated. The results show under such conditions as 4°C temperature, 0.15g catalyst, and 1.2:1 molar ratio of the hydrogen peroxide to the glyoxal, the phosphorus-molybdenum-tungsten heteropoly acid catalyst has higher catalytic activity and the mass fraction of the glyoxylic acid is 30%.

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Periodical:

Advanced Materials Research (Volumes 838-841)

Pages:

2374-2378

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.838-841.2374

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Online since:

November 2013

Authors:

Jun Deng, Xue Jun Zhu, Shuai Xie

Keywords:

Catalytic Oxidation, Glyoxylic Acid, Phosphorus-Molybdenum-Tungsten Heteropoly Acid

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References

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