THE POTENTIAL OF ACID PRE-HYDROLYZED SODA-AQ PROCESS TO MANUFACTURE HIGHLY PURIFIED α-CELLULOSE

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NIKKHAH DAFCHAHI M.; RESALATI H.

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Journal: Iranian Journal of Wood and Paper Science Research Year:2015 | Volume:30 | Issue:1 Page(s): 162-172

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Title

THE POTENTIAL OF ACID PRE-HYDROLYZED SODA-AQ PROCESS TO MANUFACTURE HIGHLY PURIFIED α-CELLULOSE

Author(s)

NIKKHAH DAFCHAHI M. | RESALATI H. | Issue Writer Certificate

Keywords

DISSOLVING PULPQ1

OXYGEN DELIGNIFICATIONQ1

POPULUS DELTOIDSQ2

BLEACHINGQ2

BRIGHTNESSQ2

Abstract

This research was performed to evaluate the potential of acid pre-hydrolysis soda-AQ process for the production of DISSOLVING PULP including high a-cellulose content from Populus deltoides. To achieve the aim, a pre-hydrolysis liquor containing 0.06% acid sulfuric, soda-AQ pulping, and OD0ED1 BLEACHING sequence were used. The results show that using at least 0.40 kappa factor at D0 stage was necessary to gain access a high quality DISSOLVING PULP including characteristics like having BRIGHTNESS level and a-cellulose content higher than 86% and 98%, respectively. A kappa reduction of 40.3% was achieved by performing a single stage OXYGEN DELIGNIFICATION after soda-AQ pulping to drop kappa number of pulp from 14.1 to 8.4 prior to entrancing the pulp into the final BLEACHING stage. The results illustrated that producing acid pre-hydrolyzed soda-AQ DISSOLVING PULP including high a-cellulose content and BRIGHTNESS, and even viscosity is completely feasible through controlling and optimizing the acid pre-hydrolysis, pulping, OXYGEN DELIGNIFICATION stages, and D0ED1 BLEACHING sequence.

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APA: Copy

NIKKHAH DAFCHAHI, M., & RESALATI, H.. (2015). THE POTENTIAL OF ACID PRE-HYDROLYZED SODA-AQ PROCESS TO MANUFACTURE HIGHLY PURIFIED α-CELLULOSE. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 30(1), 162-172. SID. https://sid.ir/paper/109719/en

Vancouver: Copy

NIKKHAH DAFCHAHI M., RESALATI H.. THE POTENTIAL OF ACID PRE-HYDROLYZED SODA-AQ PROCESS TO MANUFACTURE HIGHLY PURIFIED α-CELLULOSE. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2015;30(1):162-172. Available from: https://sid.ir/paper/109719/en

IEEE: Copy

M. NIKKHAH DAFCHAHI, and H. RESALATI, “THE POTENTIAL OF ACID PRE-HYDROLYZED SODA-AQ PROCESS TO MANUFACTURE HIGHLY PURIFIED α-CELLULOSE,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 30, no. 1, pp. 162–172, 2015, [Online]. Available: https://sid.ir/paper/109719/en

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