Proceedings of the 2015 2nd International Workshop on Materials Engineering and Computer Sciences 2015
DOI: 10.2991/iwmecs-15.2015.97
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Evaluation of Pretreatments for Removing Metal Ions from Industrial Grade Magnesium and Its Application during the Alkaline H2O2 Bleaching Process of Poplar Chemi-thermomechanical Pulp (CTMP)

Abstract: The objective of this work is to evaluate the effect of applying industrial grade MgO with different grades of metal impurity partially substituting NaOH as the alkali source on the hydrogen peroxide bleaching process. In this study, the effects of pretreatments, such as washing in deionized water, washing in deionized water combined with chelating by EDTA, grinding by grinding machine, and grinding by grinding machine combined with chelating by EDTA pretreatments, on the removing of metal impurity from the in… Show more

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