H2O2 bleaching in mixed triploid poplar and acacia woodchips high-yield pulping process with substitution of 50 wt% NaOH by MgO and its kinetics study

Xin Liu,Bo Zhang,Qingxi Hou,Xiaodi Wang,Yunjing Chen,Zhengyi Tao

Industrial Crops and Products（2021）

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摘要

•Mixed triploid poplar and acacia woodchips P-RC APMP was made.•The obtained pulp with the substitution of 50 wt% NaOH by MgO had an excellent bulk.•The bleaching effluent of the obtained pulp had a low COD.•The bleaching reaction rate depended on the concentration of bleaching reagents.•The magnitude of the dependent extent is [H2O2] > [NaOH] > [MgO] > [Na2SiO3].

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Triploid poplar and acacia woodchips,High-yield pulping,P-RC APMP,Substitution of 50 wt% NaOH by MgO,Alkaline hydrogen peroxide bleaching,Kinetics

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H2O2 bleaching in mixed triploid poplar and acacia woodchips high-yield pulping process with substitution of 50 wt% NaOH by MgO and its kinetics study

H2O2 bleaching in mixed triploid poplar and acacia woodchips high-yield pulping process with substitution of 50 wt% NaOH by MgO and its kinetics study