ODED Bleaching of Kenaf Soda Pulp
Tang Jie-bin
Abstract
Tang Jie-bin
Abstract
The bleaching ability of kenaf soda pulp,following bleaching sequences of oxygen delignification,first stage of chlorine dioxide bleaching,alkaline extraction and second stage of chlorine dioxide bleaching(i.e.OD0ED1),were studied in this paper.The more attentions were paid to analyze the effect of the NaOH dosage in O-stage,the ClO2 dosage in D0 and alkaline extraction with or without pressure on pulp properties,separately.The results showed that the brightness of bleached soda pulp could reach 80.0%ISO,and the pulp had great physical properties.
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The bleaching ability of kenaf soda pulp,following bleaching sequences of oxygen delignification,first stage of chlorine dioxide bleaching,alkaline extraction and second stage of chlorine dioxide bleaching(i.e.OD0ED1),were studied in this paper.The more attentions were paid to analyze the effect of the NaOH dosage in O-stage,the ClO2 dosage in D0 and alkaline extraction with or without pressure on pulp properties,separately.The results showed that the brightness of bleached soda pulp could reach 80.0%ISO,and the pulp had great physical properties.
Key concepts: Chlorine dioxide, Kenaf, Pulp (tooth), Chemistry, Pulp and paper industry, Chlorine, Kappa number, Kraft process