Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7704142 | Ultrasonics Sonochemistry | 2015 | 7 Pages |
Abstract
The best bleaching efficiency of pulp was obtained using H2O2 with ultrasonication (at 20 kHz) of the pulp mixture at 45 °C for 30 min. The ISO brightness of the bleached pulp increased up to 1.9%, although the bleached pulp yield was slightly reduced to 1.5%. Magnesium sulfate was used as a bleaching stabilizer to increase the bleached pulp yield and viscosity. As a result, the bleached pulp yield and viscosity increased by 2.1% and 10%, compared with fully bleached pulp at the end of the process, respectively, despite a decrease in ISO brightness.
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Authors
Jin-Ho Seo, Hyoung-Jin Kim,