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- W2378821812 abstract "Delignification of kraft pulp with acidic hydrogen peroxide catalyzed by four heteropoly acids--Na4PMo11VO40],Na5PMo10V2O40],Na717VO62] and Na8P2Mo16V2O was investigated,and effects of temperature on hydrogen peroxide delignification catalyzed by Na5PMo10V2O40] were studied.Results indicated that all four heteropoly acids have catalytic activity for delignification of kraft pulp,but they also accelerate carbohydrate degradation.Decreases of Kappa number and viscosity of pulp decreased as electric charge number of heteropoly acids increased.The temperature response of hydrogen peroxide delignification catalyzed by Na5PMo10V2O40] was seemingly abnormal,because decrease of Kappa number at about 60 ℃ was maximal.Viscosity of pulp decreased almost linearly with increase of reaction temperature.Optimum temperature is 60 ℃ for hydrogen peroxide delignification catalyzed by Na5PMo10V2O." @default.
- W2378821812 created "2016-06-24" @default.
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- W2378821812 date "2003-01-01" @default.
- W2378821812 modified "2023-09-25" @default.
- W2378821812 title "CATALYTIC EFFECT OF HETEROPOLY ACIDS ON DELIGNIFICATIONOF KRAFT PULP WITH HYDROGEN PEROXIDE" @default.
- W2378821812 hasPublicationYear "2003" @default.
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