Investigation on the application of industrial grade MgO in the alkaline peroxide bleaching of poplar CTMP

Song Han; Wei Liu; Shaoshuai Wu; Zhaoxia Long; Qingxi Hou

Journal of Industrial and Engineering Chemistry, Vol.21, 121-125, January, 2015

DOI10.1016/j.jiec.2014.02.013 Export Citation

Investigation on the application of industrial grade MgO in the alkaline peroxide bleaching of poplar CTMP

Song Han, Wei Liu, Shaoshuai Wu, Zhaoxia Long, and Qingxi Hou^†

Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, China

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Effects of four different kinds of industrial grade MgO as one alkali source in the alkaline peroxide bleaching of poplar chemi-thermomechanical pulp (CTMP) were investigated. The particle size and activity of the MgO played the most important role in the improvement of optical and strength properties of the bleached CTMP. At a 25% substitution percentage of MgO for NaOH, a 77.4%ISO brightness and the optimal tensile index of the bleached CTMP could be obtained. When industrial grade MgO was applied, appropriate increase in Na2SiO3 dosage and pulp consistency could improve the brightness and strength properties of the bleached CTMP.

Keywords:Poplar chemi-thermomechanical pulp;Peroxide bleaching;Industrial grade magnesium oxide;Particle size;Activity

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[Referenced By]

[1] Zhang YK, Sci. Technol. Inf., 424 (2013)

[2] Yuan W, Hou QX, Zhao JP, Yang B, Pulp Pap., 28, 45 (2009)

[3] Thakore A, Oei J, Ringrose B, Gibson A, Wajer M, Pulp Pap. Can., 106, 46 (2005)

[4] He ZB, Ni YH, Zhang E, J. Wood Chem. Technol., 24, 153 (2004)

[5] He ZB, Wekesa M, Ni YH, TAPPI J., 3, 27 (2004)

[6] Kunzel U, Strittmatter G, Bertolotti H, Paper, 218, 30 (1993)

[7] Li Z, Court G, Belliveau R, Crowell M, Murphy R, Gibson A, Wajer M, Branch B, Ni Y, Pulp Pap. Can., 106, 24 (2005)

[8] Wong DF, Schmidt JA, Heitner C, Pulp Pap. Can., 107, 68 (2006)

[9] He ZB, Wekesa M, Ni YH, Pulp Pap. Can., 107, 29 (2006)

[10] YH Ni, Can. J. Chem. Eng., 83, 610 (2008)

[11] Wang H, He ZB, Ni YH, J. Wood Chem. Technol., 28, 55 (2008)

[12] Liu W, Hou QX, Yang B, Yuan W, Zhao JP, Zhang RX, Liu JM, Ind. Eng. Chem. Res., 50(4), 1860 (2011)

[13] Ye LY, Hou QX, Liu W, Hong YM, Zhang JH, Zhang RX, Carbohydr. Polym., 88, 1435 (2012)

[14] Hu KT, Ni YH, Zou XJ, Zhou YJ, TAPPI J., 5, 21 (2006)

[15] Liu W, Yuan ZR, Mao CB, Hou QX, Li KC, Carbohydr. Polym., 87, 322 (2012)

[16] Qian HY, Deng M, Xu LL, Zhang SM, Ind. Miner. Process., 34, 22 (2015)

[17] Shi SL, He FW, Pulping& Papermaking Analysis and Testing, China Light Industry Press, Beijing (2009)

[18] Ma H, Zhang XH, Environ. Sci. Surv., 27, 92 (2008)

[19] Hou QX, Bai LL, Zhang HJ, Zhao JP, Liu W , Yuan W, China Pulp Pap., 28, 17 (2009)

[20] Kong FG, Ni YH, He ZB, J. Wood Chem. Technol., 29, 136 (2009)

[21] Zhang JH, Liu W, Han S, Hou QX, Li Y, Wang Y, Long ZX, Ind. Eng. Chem. Res., 52(23), 7645 (2013)

[22] Xu EC, J. Pulp Pap. Sci., 28, 379 (2002)

[23] Li BY, Zhan HY, Fu SY, Pap. Sci. Technol., 27, 11 (2008)

[24] He ZB, Ni YH, Appital J., 61, 450 (2008)