Characterization of three non-product materials from a bleached eucalyptus kraft pulp mill, in view of valorising them as a source of cellulose fibres

Silva, M.C.; Lopes, O. R.; Colodette, Jorge Luiz; Porto, A.O.; Rieumont, Jacques; Chaussy, Didier; Belgacem, Mohamed Naceur; Silva, G.G.

doi:10.1016/j.indcrop.2007.11.005

Cited by 69 publications

(28 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Absence of the peak at 1735 cm -1 leads to the hypothesis that RTF has undergone to alkaline scouring so most of the hemicelluloe were removed. The three fibers show a peak at about 1640 cm -1 related to absorbed water 21,[31][32][33] The bands at the region from 1000 to 1500 cm -1 are assigned to the aromatic region related to the lignin: the bands at 1460, 1425 and 1220 cm -1 are characteristic of C-H and C-O deformation, bending or stretching vibrations of many groups in lignin and other carbohydrates 28,29,34 . Cellulose show bands characteristics at 1055 and 1162 cm -1 attributed to C-OR stretching and antisymetric bridge C-OR-C stretching of cellulose, respectively 28 .…”

Section: Fourier-transform Infrared Spectroscopy (Ftir)mentioning

confidence: 99%

Characterization of Fibers from Pineapple's Crown, Rice Husks and Cotton Textile Residues

Prado

Spinace

2015

Mat. Res.

View full text Add to dashboard Cite

Fibers from pineapple's crown (PCF), rice husks (RH) and cotton textile residues (RTF) were characterized by SEM, X-ray diffraction, FTIR and thermogravimetric analysis. Moisture content, water absorption, density and the distribution of the diameter of the fibers were also evaluated. RTF showed cylindrical microstructure with smooth surface, PCF showed cellular structure and the microstructure of RH is globular, showing cell pattern of the outer surface epidermis which is well organized and has a corrugate structure. PCF and RH showed crystallographic planes of cellulose I and RTF showed a mixture of cellulose I and cellulose II. RTF showed the highest degree of crystallinity and the lower moisture content and water absorption. These results occur because the RTF has no hemicellulose, as verified by FTIR. Comparing the three fibers, the RTF presented the lowest density and diameter. Furthermore, the onset degradation temperature of RTF was 40 °C higher than the PCF and the RH.

show abstract

Section: Fourier-transform Infrared Spectroscopy (Ftir)mentioning

confidence: 99%

Characterization of Fibers from Pineapple's Crown, Rice Husks and Cotton Textile Residues

Prado

Spinace

2015

Mat. Res.

View full text Add to dashboard Cite

show abstract

“…could also promote furfural production during organosolv pulping of sugar maple bark, as it has been shown that it contained important concentration of calcium oxalate, which could be a source of oxalic acid. It is also important to note that hydrolysis of other hardwood barks, such as eucalyptus, yielded little xylose, while glucose was identified as the most important product [29]. …”

Section: Cellulosic Pulp From Sugar Maple Barkmentioning

confidence: 99%

Transformation of Sugar Maple Bark through Catalytic Organosolv Pulping

Koumba-Yoya

Stevanović

2017

Catalysts

View full text Add to dashboard Cite

Abstract:The catalytic organosolv pulping of sugar maple bark was performed adopting the concept of forest biorefinery in order to transform bark into several valuable products. Our organosolv process, consisting of pre-extracting the lignocellulosic material followed by pulping with ferric chloride as a catalyst, was applied to sugar maple bark. The pre-extraction step has yielded a mixture of phenolic extractives, applicable as antioxidants. The organosolv pulping of extractives-free sugar maple bark yielded a solid cellulosic pulp (42.3%) and a black liquor containing solubilized bark lignin (24.1%) and products of sugars transformation (22.9% of hemicelluloses), mainly represented by furfural (0.35%) and 5-hydroxymethyl furfural (HMF, 0.74%). The bark cellulosic pulp was determined to be mainly constituted of glucose, with a high residual lignin content, probably related to the protein content of the original bark (containing cambium tissue). The biorefinery approach to the transformation of a solid bark residue into valuable biopolymers (lignin and cellulose) along with phenolic antioxidants from pre-extraction and the HMF derivatives from black liquor (applicable for 2,5-diformylfuran production) is an example of a catalytic process reposing on sustainable engineering and green chemistry concepts.

show abstract

“…The intensity peak at 1,155-1,158 cm À1 region was due to the antisymmetrical deformation of the C-O-C bond [53]. The vibration peak at 898 cm À1 in the alkali-treated fiber and whiskers was assigned to C-H out of plane ring stretching in cellulose due to b-linkage or the glycoside bonds, which are symmetric in polysaccharides [47,54].…”

Section: Structural Analysis Ftir Analysismentioning

confidence: 99%

Preparation of Nanocellulose from Kenaf (Hibiscus cannabinus L.) via Chemical and Chemo-mechanical Processes

Tahir

Zaini

Jonoobi

et al. 2014

Handbook of Polymer Nanocomposites. Processing, Performance and Application

View full text Add to dashboard Cite

Characterization of three non-product materials from a bleached eucalyptus kraft pulp mill, in view of valorising them as a source of cellulose fibres

Cited by 69 publications

References 23 publications

Characterization of Fibers from Pineapple's Crown, Rice Husks and Cotton Textile Residues

Characterization of Fibers from Pineapple's Crown, Rice Husks and Cotton Textile Residues

Transformation of Sugar Maple Bark through Catalytic Organosolv Pulping

Preparation of Nanocellulose from Kenaf (Hibiscus cannabinus L.) via Chemical and Chemo-mechanical Processes

Contact Info

Product

Resources

About