Production of dissolving pulp from populus deltoides wood utilizing alkaline pre-extraction followed by soda-AQ pulping process

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NIKKHAH DAFCHAHI M.; SARAEYAN A.R.; RESALATI H.; GHASEMIAN A.; SHAKERI A.R.

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Journal: IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES Year:2018 | Volume:9 | Issue:2 Page(s): 289-298

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Title

Production of dissolving pulp from populus deltoides wood utilizing alkaline pre-extraction followed by soda-AQ pulping process

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Keywords

dissolving pulpQ1

alkali-catalyzed pre-hydrolysisQ1

soda-AQ pulpQ1

PoplarQ2

oxygen delignificationQ1

Abstract

dissolving pulp is used as a raw material to produce numerous cellulosic derivatives like carboxymethyl cellulose, nitrocellulose, viscose, etc. The potential of dissolving pulp production from populus deltoides using alkaline preextraction followed by soda-AQ pulping process was investigated across this research. The yield loss of about 15% was achieved in pre-extraction stage through controlling the process parameters, and kappa number of the pulp has been reduced to about 40% with oxygen delignification. The results showed that the alkaline pre-hydrolysis has been affected on increasing the lignin removal rate of fibers. Using alkali catalyst in pre-hydrolysis liquor led to increasing a-cellulose and decreasing brightness level of the dissolving pulp. The acellulose and brightness level of dissolving pulp have been upgraded by utilizing higher levels of kappa factor in D0ED1 bleaching. Therefore, the produced dissolving pulp employing 0. 45 kappa factor in D0 stage due to its higher a-cellulose, brightness and purity has been more favorable in this research work.

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APA: Copy

NIKKHAH DAFCHAHI, M., SARAEYAN, A.R., RESALATI, H., GHASEMIAN, A., & SHAKERI, A.R.. (2018). Production of dissolving pulp from populus deltoides wood utilizing alkaline pre-extraction followed by soda-AQ pulping process. IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES, 9(2 ), 289-298. SID. https://sid.ir/paper/184368/en

Vancouver: Copy

NIKKHAH DAFCHAHI M., SARAEYAN A.R., RESALATI H., GHASEMIAN A., SHAKERI A.R.. Production of dissolving pulp from populus deltoides wood utilizing alkaline pre-extraction followed by soda-AQ pulping process. IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES[Internet]. 2018;9(2 ):289-298. Available from: https://sid.ir/paper/184368/en

IEEE: Copy

M. NIKKHAH DAFCHAHI, A.R. SARAEYAN, H. RESALATI, A. GHASEMIAN, and A.R. SHAKERI, “Production of dissolving pulp from populus deltoides wood utilizing alkaline pre-extraction followed by soda-AQ pulping process,” IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES, vol. 9, no. 2 , pp. 289–298, 2018, [Online]. Available: https://sid.ir/paper/184368/en

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