低浓亚麻浆臭氧漂白工艺的研究
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摘要
在实验室条件下采用低浓纸浆臭氧漂白自动化反应设备进行低浓亚麻浆臭氧漂白工艺研究。以高浓纸浆、低浓纸浆臭氧漂白动力学为研究基础,从传质学角度分析低浓纸浆臭氧漂白的漂白速率,探讨了低浓纸浆臭氧漂白的可行性;同时对低浓亚麻浆臭氧漂白工艺进行了研究。实验结果表明,低浓亚麻浆臭氧漂白的最优工艺条件为:浆浓3%,臭氧用量1.0%,pH值为2,在最佳实验条件下得到的纸浆再进行过氧化氢漂白,最终得到的漂白亚麻浆白度为84%,黏度668 mL/g。
Ozone bleaching of flax pulp was carried out with a new laboratory automated equipment.Based on the study of high consistency and low consistency ozone bleaching kinetics,the bleaching rate of low consistency ozone bleaching was studied from the point of mass transfer and the feasibility of low consistency ozone bleaching was discussed.The conditions for ozone bleaching of flax pulp at low consistency were researched.The optimum process condition was 3% consistency,pH value 2,ozone dosage was 1.0%,the brightness and viscosity of the bleached flax pulp were 84% and 668 mL/g,respectively.
Ozone bleaching of flax pulp was carried out with a new laboratory automated equipment.Based on the study of high consistency and low consistency ozone bleaching kinetics,the bleaching rate of low consistency ozone bleaching was studied from the point of mass transfer and the feasibility of low consistency ozone bleaching was discussed.The conditions for ozone bleaching of flax pulp at low consistency were researched.The optimum process condition was 3% consistency,pH value 2,ozone dosage was 1.0%,the brightness and viscosity of the bleached flax pulp were 84% and 668 mL/g,respectively.
引文
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[20]JIN Yan-yu.The Research on high consistency ozone bleaching technology and Mechanism for Kraft Bamboo Pulp[D].Guangzhou:South China University of Technology,2014.金艳羽.硫酸盐竹浆高浓纸浆臭氧漂白工艺与机理的研究[D].广州:华南理工大学,2014.
[21]KUANG Shi-jun.Brief Introduction to Ozone ECF-light Bleaching Process[J].China Pulp&Paper,2013,32(5):50.邝仕均.臭氧轻ECF漂白[J].中国造纸,2013,32(5):50.
[22]WANG Hai-yan,XUE Guo-xin,LI Zhong-zheng.Ozone-peroxide TCF bleaching of low-kappa number wheat straw pulp[J].China Pulp&Paper,2003,22(6):8.王海燕,薛国新,李忠正.低硬度麦草浆臭氧-过氧化氢TCF漂白[J].中国造纸,2003,22(6):8.
[23]Muguet M,Sundar M.New ozone technology provides cost-effective secondary fiber bleaching[J].Pulp&Paper,1996,70:6.
[2]Arooj F,Ahmad N,Chaudhry M N.A pilotscale application of ozone to bleach raw cotton fabric using various additives[J].Ozone:Science&Engineering,2014,37(3):203.
[3]Cates D H,Eggert C,Yang J L,et al.Comparison of Effluents from TCF and ECF Bleaching of Kraft Pulps[J].Tappi J.,1995,78(12):93.
[4]Silva,Brito,Colodette J L,et al.Aseqüência de blanqueamento ideal para um processo emcircuito fechado[J].O Papel,1997,58(3):35.
[5]HUANG De-shan,SUN Chao-yang,WANG Zhao-hua.The applying prospect of pulp ozone bleaching technology in China and main problems need to be solved[J].China Pulp&Paper Industry,2017(2):36.黄德山,孙朝阳,王朝华.纸浆臭氧漂白技术在我国的应用前景和需要解决的主要问题[J].中华纸业,2017(2):36.
[6]Meng M X,Hsieh J S.Improved Ozone Efficiency at Reduced Charges-An Electroche-mical Model and New Experimental Approach[J].Tappi J.,2000,83(9):1.
[7]Mcdonough T J.Recent Advances in Bleached Chemical Pulp Manufacturing Technology.Extended Delignification,Oxygen Delignification,Enzyme Applications,and ECF and TCF Bleaching[J].Tappi J.,1995,78(3):55.
[8]YANG Ling.Ozone Bleaching of Kraft Bamboo Pulp[J].China Pulp&Paper,2005,24(5):8.杨玲.硫酸盐竹浆臭氧漂白的研究[J].中国造纸,2005,24(5):8.
[9]Kishimoto T F,Nakatsubo.Non-chlorine Bleaching of Kraft Pulp[J].Holzforschung,1998,52(2):185.
[10]Quesada J,Rubio M,Gómez D,et al.Actuación directadel ozono molecular sobrelaligninay sus-compuestosmodelo[J].Afinidad,1998,478:413.
[11]Roncero M B,Colom J F,Vidal T.Application of Post Treatments to the Ozone Bleaching in an Eucalyptus Kraft Pulp:Increasing the Selectivity.Part A[J].Appita J.,2002,55(4):305.
[12]Roncero M B,Colom J F,Vidal T.Ozone Bleach-ing of an Eucalyptus Kraft Pulp:Increasing the Selectivity.Part B[J].Appita J.,2002,55(5):386.
[13]CHEN Jia,LIU Ming-you.Application of Ozone in Pulp Bleaching[J].Paper Sciences&Technology,2007,26(6):47.陈佳,刘明友.臭氧在纸浆漂白中的应用[J].造纸科学与技术,2007,26(6):47.
[14]FANG Hong-chun,LIU Ming-you,CHEN Jia.Preparation and Application of a Reinforcing Agent for Corrugating Medium[J].Paper Sciences&Technology,2008(4):26.方红春,刘明友,陈佳.低浓浆臭氧漂白传质模型及动力学研究[J].造纸科学与技术,2008(4):26.
[15]FANG Hong-chun,LIU Ming-you,CHEN Jia.Kinetics studies of the ozone bleaching modal of the high consistency pulp[J].Heilongjiang Pulp&Paper,2008(4):28.方红春,刘明友,陈佳.高浓浆臭氧漂白模型在动力学上的研究[J].黑龙江造纸,2008(4):28.
[16]Griffin R,Ni Y,Van Heiningen A R P.The Development of Delignification and Lignin Cellulose Selectivity During Ozone Bleaching[J].JPPS,1998(4):111.
[17]XIA Qing,JIA Shao-yi.Unit Operation of Chemical Engineering[M].Tianjin:Tianjin Science and Technology Press,2007.夏清,贾绍义.化工原理[M].天津:天津科学技术出版社,2007.
[18]Masaaki T,Seiichiro I,Naoyuki Y,et al.Kinetics of ozone self-decomposition of ozone and the ozonation of cyanidion and dyes in aqueous solutions[J].Journal of Chemical Engineering of Japan,1981,14(5):383.
[19]Kassebi A,Gratzl J S,Chen C-L,et al.Non-Conventional Kraft Pulp Bleaching-The Role of Ozone[C].Proeeedings TAPPI Pulping Conference,Toronto,Ontario,1982.
[20]JIN Yan-yu.The Research on high consistency ozone bleaching technology and Mechanism for Kraft Bamboo Pulp[D].Guangzhou:South China University of Technology,2014.金艳羽.硫酸盐竹浆高浓纸浆臭氧漂白工艺与机理的研究[D].广州:华南理工大学,2014.
[21]KUANG Shi-jun.Brief Introduction to Ozone ECF-light Bleaching Process[J].China Pulp&Paper,2013,32(5):50.邝仕均.臭氧轻ECF漂白[J].中国造纸,2013,32(5):50.
[22]WANG Hai-yan,XUE Guo-xin,LI Zhong-zheng.Ozone-peroxide TCF bleaching of low-kappa number wheat straw pulp[J].China Pulp&Paper,2003,22(6):8.王海燕,薛国新,李忠正.低硬度麦草浆臭氧-过氧化氢TCF漂白[J].中国造纸,2003,22(6):8.
[23]Muguet M,Sundar M.New ozone technology provides cost-effective secondary fiber bleaching[J].Pulp&Paper,1996,70:6.