Acidic prehydrolysis role in dissolving pulp production from OCC

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Ghahrani N.; RAMEZANI O.; KERMANIAN H.; VATANKHAH E.; KOOSHA M.

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Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES Year:2018 | Volume:9 | Issue:3 Page(s): 441-457

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Information Journal Paper

Title

Acidic prehydrolysis role in dissolving pulp production from OCC

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Keywords

dissolving pulpQ1

old corrugated containerQ1

acid prehydrolysiusQ1

reactivityQ1

accessibilityQ1

alpha celluloseQ1

Abstract

Acid prehydrolysis aiming to remove hemicelluloses is one of the key steps in producing dissolving pulp from wood resources. The objective of the present research was to resolve the necessity of using this treatment in dissolving pulp production from old corrugated container. Therefore, temperature of 130° C, acid concentration of 1%, time of 30 min and liquor to paper ratio of 7: 1 were selected as acid pretreatment and the properties of samples with and without prehydrolysis were compared after cooking. The results showed that except reactivity, other required properties of dissolving pulp including accessibility, degree of polymerization and the alpha cellulose content were diminished. Also, the results of yield and chemical composition indicated the destructive effect of this step on samples. Finally, regarding the superior properties of samples with no prehydrolysis and their acceptable value of reactivity, not only the acid prehydrolysis necessity was not acknowledged but also its application is not recommended.

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APA: Copy

Ghahrani, N., RAMEZANI, O., KERMANIAN, H., VATANKHAH, E., & KOOSHA, M.. (2018). Acidic prehydrolysis role in dissolving pulp production from OCC. IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES, 9(3 ), 441-457. SID. https://sid.ir/paper/184255/en

Vancouver: Copy

Ghahrani N., RAMEZANI O., KERMANIAN H., VATANKHAH E., KOOSHA M.. Acidic prehydrolysis role in dissolving pulp production from OCC. IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES[Internet]. 2018;9(3 ):441-457. Available from: https://sid.ir/paper/184255/en

IEEE: Copy

N. Ghahrani, O. RAMEZANI, H. KERMANIAN, E. VATANKHAH, and M. KOOSHA, “Acidic prehydrolysis role in dissolving pulp production from OCC,” IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES, vol. 9, no. 3 , pp. 441–457, 2018, [Online]. Available: https://sid.ir/paper/184255/en

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