Low environmental impact bleaching sequences for attaining high brightness level with eucalyptus SPP pulp
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Low Environmental Impact Bleaching Sequences for Attaining High Brightness Level with Eucalyptus Spp Pulp
The alternatives used for minimizing the usage of chlorine dioxide in bleaching sequences included a hot acid hydrolysis (Ahot) stage, the use of hot chlorine dioxide (Dhot) and ozone stages at medium consistency and high consistency (Zmc and Zhc), in addition to stages with atmospheric hydrogen peroxide (P) and pressurized hydrogen peroxide (PO). The results were interpreted based on the cost ...
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Bleaching of soda-anthraquinone jute pulp by chlorine dioxide (ClO2) was studied to reach a target brightness of above 88% for the purpose of using less bleaching chemicals. The performance of either chlorine dioxide or peroxide in the final bleaching to boost brightness was also studied. The experimental results revealed that the final brightness depended on ClO2 charge in the Do and D1 stages...
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ژورنال
عنوان ژورنال: Brazilian Journal of Chemical Engineering
سال: 2009
ISSN: 0104-6632
DOI: 10.1590/s0104-66322009000100002