The Influence of Potassium Borohydride (KBH4) On Kraft Pulp Properties of Maritime Pine

Yıl 2016, Cilt: 18 Sayı: 2, 103 - 106, 15.12.2016

Sezgin Koray Gülsoy Sezgin Oğuz Saffet Uysal Serhat Şimşir Muhsin Tas

https://doi.org/10.24011/barofd.267296

Cited By: 2

Öz

In
this study, the effects of potassium borohydride (KBH₄) on maritime
pine (Pinus pinaster Ait.)
kraft
pulp and paper properties were investigated. 0.5%, 1%, 1.5%, and 2% (based on
oven-dried wood) KBH₄ added kraft cookings were carried out under
the fixed cooking conditions. KBH₄-free kraft cooking was also done
as control cooking. The results revealed that pulp yield, kappa number, and
beating time increased with addition of KBH₄ to cooking liquor. The
screened yield increased 7.69 point (from 46,21% to 53.90%) with 2% KBH₄
addition to control cooking. The brightness values of handsheets were increased
with KBH₄ addition. Strength properties of handsheets significantly
decreased with addition of KBH₄.

Anahtar Kelimeler

Kraft, Potassium borohydride, Pulp yield, Paper strength, Maritime pine

Sahil Çamı Kraft Hamuru Ve Kâğıdının Özellikleri Üzerine Potasyum Bor hidrürün (KBH4) Etkisi

Öz

Bu
çalışmada, sahil çamından (Pinus pinaster Ait.) elde edilen kraft kağıt
hamuru ve kağıtlarının özellikleri üzerine potasyum borhidrürün (KBH₄)
etkileri araştırılmıştır. %0,5, %1, %1,5, ve %2 (fırın kurusu oduna göre) oranında
KBH₄ pişirme çözeltisine ilave edilerek sabit pişirme koşulları
altında Kraft pişirmeleri yapılmıştır. Ayrıca, KBH₄ ilavesiz kraft
pişirmesi kontrol pişirmesi olarak yapılmıştır. Pişirme çözeltisine KBH₄
ilavesinin kağıt hamurunun verimi ve kappa numarası ile hamurların dövme
sürelerini artırdığı sonucuna varılmıştır. Kontrol pişirmesine %2 KBH₄
ilave edildiğinde elenmiş verim 7,69 puan (%46,21’den %53,90’a) artmıştır. KBH₄
ilavesi ile kağıtların parlaklık değerleri artmıştır. Kağıtların sağlamlık
özellikleri KBH₄ ilavesi ile önemli ölçüde azalmıştır.

Anahtar Kelimeler

Kraft, Potasyum borhidrür, Kağıt hamuru verimi, Kağıt sağlamlığı, Sahil çamı

Kaynakça

• Akgül, M. and Temiz, S. 2006. Determination of Kraft-NaBH4 Pulping Conditions of Uludag Fir (Abies bornmulleriana Mattf.). Pak. J. Biol. Sci. 9(13), 2493-2497.
• Akgül, M.; Çöpur, Y. and Temiz, S. 2007. A Comparison of Kraft and Kraft-Sodium Borohydrate Brutia Pine Pulps. Build. Environ. 42(7), 2586-2590.
• Annergren, G.; Rydholm, S. A; Vardheim, S. 1963. Influence of raw material and pulping process on the chemical composition and physical properties of paper pulps. Sven. Papper. 66(6), 196-210.
• Baptista, C., Belgacem, N., Duarte, A. P. 2006. The Effect of Wood Extractives on Pulp Properties of Maritime Pine Kraft Pulp. Appita J. 59(4), 311-316.
• Bujanovic, B, Cameron, J. H. and Yılgor, N. 2003. Comparative Studies of Kraft and Kraft-Borate Pulping of Black Spruce. J. Pulp Pap. Sci. 29(6), 190-196.
• Bujanovic, B., Cameron, J. H. and Yılgor, N. 2004. Some Properties of Kraft and Kraft-Borate Pulps of Different Wood Species. Tappi J. 3(6), 3-6.
• Çöpur, Y. and Tozluoğlu, A. 2008. A Comparison of Kraft, PS, Kraft-AQ and Kraft-NaBH4 Pulps of Brutia Pine. Bioresource Technol. 99(5), 909-913.
• Diaconescu, V.; Petrovan, S. 1976. Kinetics of sulfate pulping with addition of sodium borohydride. Cellulose Chem. Technol. 10(3), 357-378.
• Erişir, E., Gümüşkaya, E., Kırcı, H. and Mısır, N. 2015. Alkaline Sulphite Anthraquinone Pulping of Caucasian Spruce (Picea orientalis L.) Chips with Added Sodium Borohydride and Ethanol. Drewno, 59(194), 89-102.
• Esteves, B., Gominho, J., Rodrigues, J. C., Miranda, I., Pereira, H. 2005. Pulping Yield and Delignification Kinetics of Heartwood and Sapwood of Maritime Pine. J. Wood Chem. Technol. 25, 217-230.
• Gabir, S.; Khristov, T. 1973. Kraft cooks of papyrus (Cyperus papyrus L.) stalks in the presence of sodium borohydride. Tseluloza Khartiya. 4(6), 12-18.
• Gülsoy, S.K. and Eroğlu, H. 2011. Influence of Sodium Borohydride on Kraft Pulping of European Black Pine as a Digester Additive. Ind. Eng. Chem. Res. 50(4), 2441-2444.
• Gümüşkaya, E., Erişir, E., Kırcı, H. and Mısır, N. 2011. The Effect of Sodium Borohydride on Alkaline Sulfite-Anthraquinone Pulping of Pine (Pinus pinea) Wood. Ind. Eng. Chem. Res. 50(13), 8340-8343.
• Hartler, N. 1959. Sulphate Cooking with the Addition of Reducing Agents. Part 1. Preliminary Report on the Addition of Sodium Borohydride. Sven. Papper. 62(13), 467-470.
• İstek, A. and Özkan, İ. 2008. Effect of Sodium Borohydride on Populus tremula L. Kraft Pulping. Turk. J. Agric. For. 32(2), 131-136.
• İstek, A. and Gönteki, E. 2009. Utilization of Sodium Borohydride (NaBH4) in Kraft Pulping Process. J. Environ. Biol. 30(6), 5-6.
• Knapic, S. and Pereira, H. 2005. Within-tree Variation of Heartwood and Ring Width in Maritime Pine (Pinus pinaster Ait.). Forest Ecol. Manag. 210(1-3), 81-89.
• Koch, P. 1972. Utilization of the Southern Pines. Volume 2. Agriculture Handbook No. 420, U.S. Department of Agriculture Forest Service, Asheville, NC, 735-1663.
• Meller A.; Ritman B. L. 1964. Retention of polysaccharides in kraft pulping. Part II. The effect of borohydride addition to kraft liquor on pulp yield, chemical characteristics and papermaking properties of Pinus radiata pulps. Tappi. 47(1), 55-64.
• Tutus, A. Ates, S. and Deniz, İ. 2010a. Pulp and Paper Production from Spruce Wood with Kraft and Modified Kraft Methods. Afr. J. Biotechnol. 9(11), 1648-1654.