COMPARATIVE INVESTIGATION ON THE PROPERTIES OF SODA AND SODA-ETHANOL PULPS FROM THREE HARDWOODS

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VALAEI HOSSEIN; JAHAN LATIBARI A.

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Journal: Iranian Journal of Wood and Paper Science Research Year:2015 | Volume:30 | Issue:3 Page(s): 399-407

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Title

COMPARATIVE INVESTIGATION ON THE PROPERTIES OF SODA AND SODA-ETHANOL PULPS FROM THREE HARDWOODS

Author(s)

VALAEI HOSSEIN | JAHAN LATIBARI A. | Issue Writer Certificate

Keywords

DELIGNIFICATIONQ2

SODAQ2

SODA-ETHANOLQ2

KAPPA NUMBERQ2

YIELDQ3

POPLARQ2

BEECHQ3

HORNBEAMQ3

Abstract

Strength properties and the YIELD of SODA and SODA-ethanol pulps produced using HORNBEAM, BEECH and POPLAR woods were investigated. SODA pulps were produced applying 20% active alkali and the SODA-ethanol pulps were made using 10% active alkali and 50% ethanol. The pulping temperature was constant at 175oC and the SODA pulping time was selected at 120 minutes and the SODA-ethanol pulping times were 120 and 180 minutes. The highest accepted pulping YIELD at 58.54% was reached using SODA pulping on POPLAR wood and the lowest YIELD at 49.29% was related to SODA-ethanol pulp produced from BEECH wood applying 180 minutes pulping time. The accepted YIELD of SODA-ethanol pulping was low, but the KAPPA NUMBERs of these pulps were almost 20 units lower than SODA pulps. The strength properties of SODA-ethanol pulps were superior to SODA pulps and the difference was statistically significant at 99% confidence level. The results of this study indicated that the DELIGNIFICATION of SODA-ethanol pulping process is faster than SODA pulping from the selected hardwoods especially POPLAR wood.

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APA: Copy

VALAEI, HOSSEIN, & JAHAN LATIBARI, A.. (2015). COMPARATIVE INVESTIGATION ON THE PROPERTIES OF SODA AND SODA-ETHANOL PULPS FROM THREE HARDWOODS. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 30(3), 399-407. SID. https://sid.ir/paper/109492/en

Vancouver: Copy

VALAEI HOSSEIN, JAHAN LATIBARI A.. COMPARATIVE INVESTIGATION ON THE PROPERTIES OF SODA AND SODA-ETHANOL PULPS FROM THREE HARDWOODS. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2015;30(3):399-407. Available from: https://sid.ir/paper/109492/en

IEEE: Copy

HOSSEIN VALAEI, and A. JAHAN LATIBARI, “COMPARATIVE INVESTIGATION ON THE PROPERTIES OF SODA AND SODA-ETHANOL PULPS FROM THREE HARDWOODS,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 30, no. 3, pp. 399–407, 2015, [Online]. Available: https://sid.ir/paper/109492/en

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