THE EFFECT OF USING ANTHRAQUINONE ON HORNBEAM NEUTRAL SULFITE PULP PROPERTIES

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ROOSTAEE M.; BEHROOZ R.; MAHDAVI S.

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Journal: Journal of Wood and Forest Science and Technology Year:2015 | Volume:22 | Issue:2 Page(s): 189-205

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Title

THE EFFECT OF USING ANTHRAQUINONE ON HORNBEAM NEUTRAL SULFITE PULP PROPERTIES

Author(s)

ROOSTAEE M. | BEHROOZ R. | MAHDAVI S. | Issue Writer Certificate

Keywords

HORNBEAMQ2

NSSCQ2

ANTHRAQUINONEQ1

YIELDQ2

STRENGTH PROPERTIESQ2

OPTICAL PROPERTIESQ2

Abstract

Background and objectives: This research was performed with the aim of using ANTHRAQUINONE (AQ) as catalyst in order to improve the properties of the pulp from HORNBEAM, neutral sulfite semi chemical (NSSC) pulping. Various studies about the effect of AQ on the chemical pulps such as soda and kraft has been approved an improving of delignification and YIELD, and reducing of kappa no. and reject content.Materials and methods: The NSSC pulping of HORNBEAM was carried out to approach three screen YIELD levels of 55, 60 and 65%. The cooking conditions were chosen as: temperature (175˚C), time (variable), total chemicals 14% and ANTHRAQUINONE 0.1% (based on o.d. wood chips) to achieve the mentioned screen YIELDs. In all cooking trials, sodium sulfite to sodium bicarbonate weight ratio was constant equal to 4.5:1, and cooking liquor to wood ratio was 4 to1, respectively.Results: The results indicated that ANTHRAQUINONE decreased the cooking time (5 to 10 min.), pulp reject (1.8 to 0.3%), and kappa number (3 to 4 units) due to its better selectivity. NSSC- AQ pulps showed less energy needed for refining compared to the control pulp. Also, all the strength indices average of the hand sheets including burst: 22.4%, tear: 7.1%, and tensile: 20.4%; ring crush test (RCT): 16.2%, and corrugated medium test (CMT): 8.3% were increased significantly (P£0.05) by using ANTHRAQUINONE in pulping. Regarding OPTICAL PROPERTIES, the brightness of hand sheets with screen YIELD of 65, 60, and 55% were increased significantly 76.5, 47.5, and 16.4%, respectively by adding AQ in the cooking stage. Also, average of paper opacity increased slightly at 0.4%, but the change was not significant.Conclusion: It could be said that the utilization of 0.1% AQ brought to improvement of delignification, less refining energy consumption, and strength and OPTICAL PROPERTIES of NSSC pulp made from HORNBEAM. In addition, AQ could be able to maintain its selectivity in weak alkaline conditions (lower pH) of NSSC process. These positive results are very important for the production of corrugated board which is used frequently in npackaging idustry.

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APA: Copy

ROOSTAEE, M., BEHROOZ, R., & MAHDAVI, S.. (2015). THE EFFECT OF USING ANTHRAQUINONE ON HORNBEAM NEUTRAL SULFITE PULP PROPERTIES. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, 22(2), 189-205. SID. https://sid.ir/paper/156875/en

Vancouver: Copy

ROOSTAEE M., BEHROOZ R., MAHDAVI S.. THE EFFECT OF USING ANTHRAQUINONE ON HORNBEAM NEUTRAL SULFITE PULP PROPERTIES. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY[Internet]. 2015;22(2):189-205. Available from: https://sid.ir/paper/156875/en

IEEE: Copy

M. ROOSTAEE, R. BEHROOZ, and S. MAHDAVI, “THE EFFECT OF USING ANTHRAQUINONE ON HORNBEAM NEUTRAL SULFITE PULP PROPERTIES,” JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, vol. 22, no. 2, pp. 189–205, 2015, [Online]. Available: https://sid.ir/paper/156875/en

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