Journals / Türkiye Ormancılık Dergisi / 2021 / Cilt: 22 Sayı: 1

A study on the effects of potassium borohydride in pulp and paper production from black locust (Robinia pseudoacacia L.) wood

Yalancı akasya (Robinia pseudoacacia L.) odunundan kağıt hamuru ve kağıt üretiminde potasyum borhidrürün etkileri üzerine bir çalışma

Pages
33–37
Publication Date
2021-03-26
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Consequently, it was concluded that adding KBH4 to the white liquor in the pulp production from R. pseudoacacia wood with soda method, positively affected the chemical properties of the pulps and did not have a significant effect on the physical and optical properties.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, the effects of potassium borohydride (KBH4) added to the cooking liquor (white liquor) in pulp and paper production from black locust (Robinia pseudoacacia L.) woods on the chemical, physical and optical properties of the pulp were investigated.
📊
Key Findings & Data:By adding 0, 0.3, 0.5 and 0.7% KBH4 to the white liquor, four different cooking experiments were carried out.
💡
Conclusion & Impact:Consequently, it was concluded that adding KBH4 to the white liquor in the pulp production from R. pseudoacacia wood with soda method, positively affected the chemical properties of the pulps and did not have a significant effect on the physical and optical properties.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Robinia pseudoacacia · Potasyum borhidrür · Kağıt hamuru

Abstract

In this study, the effects of potassium borohydride (KBH4) added to the cooking liquor (white liquor) in pulp and paper production from black locust (Robinia pseudoacacia L.) woods on the chemical, physical and optical properties of the pulp were investigated. Soda (NaOH) method, which is one of the environmentally friendly cooking methods, was used in the pulp production from R. pseudoacacia woods. By adding 0, 0.3, 0.5 and 0.7% KBH4 to the white liquor, four different cooking experiments were carried out. The yields, kappa numbers and viscosity values of the pulps were measured with the relevant standards. Test papers were produced from each pulp and their physical and optical properties were determined. With 0.7% KBH4 added to the cooking solution, the total yield and viscosity increased by 9.54% and 10.4%, respectively compared to KBH4-free pulp, while the kappa number decreased by 9.48%. As a result of statistical analysis, it has been observed that there is no significant difference between the physical and optical properties of the papers produced from KBH4-free and KBH4-added pulps. Consequently, it was concluded that adding KBH4 to the white liquor in the pulp production from R. pseudoacacia wood with soda method, positively affected the chemical properties of the pulps and did not have a significant effect on the physical and optical properties.

Özet

Bu çalışmada, yalancı akasya (Robinia pseudoacacia L.) odunlarından kağıt hamuru ve kağıt üretiminde pişirme çözeltisine (beyaz çözelti) eklenen potasyum borhidrürün (KBH4) kağıt hamurunun kimyasal, fiziksel ve optik özellikleri üzerindeki etkileri araştırılmıştır. R. pseudoacacia odunlarından kağıt hamuru üretiminde çevre dostu pişirme yöntemlerinden biri olan Soda (NaOH) yöntemi kullanılmıştır. Beyaz çözeltiye %0, 0.3, 0.5 ve 0.7 KBH4 ilave edilerek dört farklı pişirme deneyi gerçekleştirilmiştir. Kağıt hamurlarının verimleri, kappa sayıları ve viskozite değerleri ilgili standartlara bağlı kalınarak ölçülmüştür. Her bir deneyden elde edilen kağıt hamurlarından test kağıtları üretilerek fiziksel ve optik özellikleri belirlenmiştir. Beyaz çözeltiye eklenen %0.7 KBH4 ile toplam verim ve viskozite, KBH4 içermeyen kağıt hamurlarına göre sırasıyla %9.54 ve %10.4 artarken, kappa sayısı %9,48 azalmıştır. İstatistiksel analizler sonucunda KBH4 içermeyen ve KBH4 katkılı kağıt hamurlarından üretilen kağıtların fiziksel ve optik özellikleri arasında önemli bir fark olmadığı görülmüştür. Sonuç olarak, yalancı akasya odunlarından soda yöntemi ile kağıt hamuru üretiminde pişirme çözeltisine KBH4 ilave edilmesinin kimyasal özellikleri olumlu yönde etkilediği, fiziksel ve optik özellikler üzerinde belirgin bir etki göstermediği sonucuna varılmıştır

🔖

Cite This Article

ÇİÇEKLER, M., ERKAN, S., TUTUŞ, A. (2021). A study on the effects of potassium borohydride in pulp and paper production from black locust (Robinia pseudoacacia L.) wood. Türkiye Ormancılık Dergisi, Cilt: 22 Sayı: 1, 33–37. https://ajindex.com/articles/964914

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (10)

  1. Akgul, M., Erdonmez, I., Cicekler, M., Tutus, A., 2018. The investigations on pulp and paper production with modified kraft pulping method from Canola (Brassica napus L.) stalks. Kastamonu University Journal of Forestry Faculty, 18(3): 357-365
  2. Akgul, M., Temiz, S., 2006. Determination of Kraft-NaBH4 pulping conditions of Uludag fir (Abies bornmulleriana Mattf.). Pakistan Journal of Biological Science, 9(13): 2493-2497. ASTM E313, 2020. Standard practice for calculating yellowness and whiteness indices from instrumentally measured color coordinates. American Society for Testing and Materials, PA, USA. Birinci, E., Tutus, A., Cicekler, M., 2020. Evaluation of Rhododendron luteum and Rhododendron ponticum in pulp and paper production. Drvna industrija, 71(4): 365-370. Brännvall, E., 2018. Increasing pulp yield in kraft cooking of softwoods by high initial effective alkali concentration (HIEAC) during impregnation leading to decreasing secondary peeling of cellulose. Holzforschung, 72(10): 819-827.
  3. Cicekler, M., Tutus, A., 2019. Effects of potassium borohydride on the Pinus brutia pulp properties. Kahramanmaras Sutcu Imam University Journal of Engineering Sciences, 22(2): 38-47.
  4. Copur, Y., Tozluoglu, A., 2008.
  5. A comparison of kraft, PS, kraft-AQ and kraft-NaBH4 pulps of Brutia pine. Bioresource Technology, 99(5): 909-913.
  6. Correia, F.M., d'Angelo, J.V.H., Almeida, G.M., Mingoti, S.A., 2018. Predicting Kappa number in a Kraft pulp continuous digester: A comparison of forecasting methods. Brazilian Journal of Chemical Engineering, 35(3): 1081-1094.
  7. Erkan, S., Cicekler, M., Tutus, A., 2020. Comparison of Pinus pinea heartwood and sapwood pulps obtained by soda-potassium borohydride method. Düzce University Journal of Science & Technology, 8(3): 1894-1902.
  8. Eroglu, H., 1981. Cooking wood chips with oxygen alkali method and bleaching pulp. Journal of Karadeniz Technical University Faculty of Forestry, 2: 314-315.
  9. Gulsoy, S.K., Eroglu, H., 2011. Influence of sodium borohydride on kraft pulping of European black pine as a digester additive. Industrial & Engineering Chemistry Research, 50(4): 2441-2444.
  10. Gulsoy, S.K., Oguz, S., Uysal, S, Simsir, S., Tas, M., 2016. The influence of potassium borohydride (KBH4) on kraft pulp properties of Maritime pine. Journal of Bartin Faculty of Forestry, 18(2): 103-106. ISO 11476, 2010. Paper and board-Determination of CIE whiteness, C/2 degrees (indoor illumination conditions). International Organization for Standardization, Geneva, S