Results 21 to 30 of about 186,578 (276)

Manufacturing of high brightness dissolving pulp from sansevieria-trifasciata fiber by effective sequences processes

open access: yesCommunications in Science and Technology, 2022
The need of dissolving pulp (DP) for rayon fiber production is increasing rapidly in recent years. Sustainable sources of DP raw materials and an effective manufacturing process are urgently required.
Yusnimar   +5 more
doaj   +1 more source

Characterization of dissolving pulp by multivariate data analysis of FT-IR and NMR spectra

open access: yes, 2011
Several grades of dissolving pulps have been analyzed using FT-IR, solid state13C NMR and two dimensional1H-13C HSQC NMR spectroscopy to obtain an extensive data set for further characterization.
Hedenström, Mattias,   +4 more
core   +2 more sources

Enhancing Kraft based dissolving pulp production by integrating green liquor neutralization

open access: yesCarbohydrate Polymer Technologies and Applications, 2021
A pre-hydrolysis Kraft pulping (PHK) process that was used to make dissolving pulp was enhanced by replacing conventional white liquor (WL) neutralization with green liquor (GL) neutralization prior to Kraft pulping.
Ran Bi   +8 more
doaj   +1 more source

Enlarging the Product Portfolio of a Kraft Pulp Mill via Hemicellulose and Lignin Separation – Process Integration Studies in a Case Mill

open access: yesChemical Engineering Transactions, 2013
Increased energy and raw material prices along with contracting markets for kraft pulp, have highlighted the need for the pulp industry to enlarge their traditional product portfolio with new value-added products via the implementation of biorefinery ...
V. Lundberg   +5 more
doaj   +1 more source

Hemicelluloses in Dissolving Pulps

open access: yesThe Journal of the Society of Chemical Industry, Japan, 1960
溶解用パルプ中の非グルコース成分,ウロン酸などを定量し,原木および蒸解法との関係を明らかにしようと試みた。マンノース基は広葉樹パルプに少なく,針葉樹パルプ,特にアメリカ産パルプに多い。ウロン酸と原木,蒸解法との関係は認められなかった。適当なマンノース基/グルコース基を仮定して,マンノース基量よりグルコマンナン量を計算し,キシラン量と合わせて全ヘミセルロース量を求めたが,これはγ-セルロースと比例関係がある。溶解用パルプ中のヘミセルロースも,フェーリング液によりグルコマンナンとキシランにほぼわけることができる。亜硫酸法および硫酸塩法パルプのα-,β-,γ-セルロースの組成を比較検討した。
Kei Matsuzaki   +2 more
openaire   +2 more sources

Upgrading Paper-Grade Pulp as Dissolving Pulp for Lyocell Fiber Preparation

open access: yes, 2022
Lyocell fiber has emerged as a new generation of green fiber due to its preparation process and unique properties in comparison with viscose fiber. The raw material for the preparation of Lyocell fiber has a great impact on the quality of the finished ...
Chen Gong   +5 more
core   +1 more source

Biological Potential of the Main Component, Thymoquinone, of Nigella sativa in Pulp Therapy—In Vitro Study

open access: yesLife, 2022
This work is designed to assess the antimicrobial efficacy, chelating efficacy, and dissolving capability of the bioactive agent of the Nigella sativa plant (thymoquinone). Four freeze-dried microorganisms were studied.
Rana A. Alamoudi   +2 more
doaj   +1 more source

Produksi bio-oil dan bio-arang dari mata kayu industri pulp melalui pirolisis [Production of bio-oil and bio-char from knot in pulp mill through pyrolysis] [PDF]

open access: yes, 2019
Acacia mangium knotis one of the biomass reject produced from the wood chemical pulping processes. This raw material is suitable for the production of bio-oil and bio-char in competitive costs.
Syamsudin, Syamsudin; Balai Besar Pulp dan Kertas
core   +2 more sources

Process modifications to obtain a prehydrolysis kraft dissolving pulp with low limiting pulp viscosity

open access: yes, 2020
Cellulose can be directly dissolved in cold alkali without derivatization. However, this requires low cellulose molecular weight, i. e. low pulp viscosity, preferably below 300 mL g−1.
Walter, Karin,, Brännvall, Elisabet,
core   +1 more source

Improved Cellulose Yield in the Production of Dissolving Pulp from Bamboo Using Acetic Acid in Prehydrolysis

open access: yesBioResources, 2014
Despite increasing demand for dissolving pulps from raw material, production costs remain quite high compared to regular paper pulp. Research literature to date has focused on improving performance and quality but has not simultaneously explored how to ...
Guang Li   +3 more
doaj   +1 more source

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