EFFLUENT CHARACTERISTICS AND PULP PROPERTIES IN THE HIGH-CONSISTENCY RETENTION STAGE OF TRIPLOID POPLAR P-RC APMP BY PARTIALLY SUBSTITUTING MgO FOR NaOH

摘要：

Magnesium-based alkali is another attractive alkali source in the peroxide bleaching process of high-yield pulps. This work investigated the effluent characteristics in the high-consistency retention stage and pulp properties of triploid poplar P-RC APMP by partially substituting MgO for NaOH. The results showed that the pH, CODCr, cationic demand and conductivity of the effluent in the high-consistency retention stage decreased with the substitution ratio of MgO for NaOH increasing. Meanwhile, both the light scattering coefficient and bulk of the pulps increased, but the tensile index, internal bond decreased. The tensile index and internal bond had good linear relationships with bulk.

关键词： P-RC APMP Magnesium Alkalinity Effluent load

作者: Liu Wei Hou Qingxi Zhang Hongjie Wei Weiqi

作者单位: Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin， 300457,China

会议类型: 国际会议

会议名称: 4th ISETPP(第四届制浆造纸新技术国际研讨会)

会议地点: 广州

会议语种:英文

页码: 721-724

在线出版日期: 2010-11-08（万方平台首次上网日期，不代表论文的发表时间）