Results 131 to 140 of about 284 (165)

Evaluation of fines separation from unbleached softwood kraft pulp using microperforated hole screens

Nordic Pulp & Paper Research Journal, 2021
AbstractThe application of a bench scale and an industrial scale pressure screen to separate cellulosic fines from an unbleached softwood kraft pulp containing 5 % (w/w) primary fines was investigated and the results were compared. In the bench scale trials different microperforated screens with hole diameters of 150 µm, 250 µm, 400 µm and 600 µm were ...
D. Mandlez, R. Eckhart, W. Bauer
openaire   +1 more source

Characterization of Unbleached Kraft Pulps by Enzymatic Treatment, Potentiometric Titration and Polyelectrolyte Adsorption

hfsg, 1996
The surface properties of unbleached softwood (Pinus sylvestris) and hardwood (Betula verrucosa) kraft pulps were modified by treating the fibre surfaces with specific xylanase and mannanase (Trichoderma reesei). The amounts and accessibilities of surface carboxyl groups in untreated and enzyme-treated fibres were analyzed using adsorption of cationic ...
Buchert, Johanna, Viikari, Liisa, Stenius, Per, Laine, Janne   +4 more
openaire   +1 more source

Characterization of Residual Lignins Isolated from Unbleached and Semibleached Softwood Kraft Pulps

Journal of Wood Chemistry and Technology, 1987
Abstract Residual lignins in an unbleached and a semibleached softwood (Pinus taeda L.) kraft pulp were isolated by enzymatic hydrolysis of polysaccharides in the pulps. After purification, the residual lignins were characterized. A dissolved lignin was also isolated from the alkaline extraction spent liquor by acidification and characterized.
Jian-Er Jiang, Hou-Min Chang, Shyam S. Bhattacharjee, David L. W. Kwoh   +3 more
openaire   +1 more source

Characterisation of fines from unbleached kraft pulps and their impact on sheet properties

hfsg, 2008
Abstract Fines are an essential component in the papermaking process because they have a profound influence on the behaviour of the wet web and on the mechanical properties of the final sheet. Primary fines are present in the pulp prior to refining, and secondary fines are produced during refining.
Marie Bäckström, Marie-Claude Kolar, Myat Htun   +2 more
openaire   +1 more source

Cellulose nanofiber extraction from unbleached kraft pulp for paper strengthening

Cellulose, 2023
Yali Liu, Sufeng Zhang, Lei Li, Sergiu Coseri   +3 more
openaire   +1 more source

Performance studies of the unbleached kraft pulp mill effluent treatment plant in Ostrołȩka

Water Research, 1969
Abstract Based on the analysis of almost 200 performance data of the activated sludge treatment plant for Kraft pulp mill effluent in Ostrol e ka, collected in the summer of 1967 and 1968, the evaluation of plant efficiency in both periods was carried out.
openaire   +1 more source

Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
exaly  

Comparison of Fibrillation Characteristics of Unbleached Kraft Pulp and Organosolv Pulp by Alkali Kneading Process

Journal of Korea Technical Association of The Pulp and Paper Industry, 2020
Sa Rang Choi, Jung Myoung Lee
openaire   +1 more source

Obesity and adverse breast cancer risk and outcome: Mechanistic insights and strategies for intervention

Ca-A Cancer Journal for Clinicians, 2017
Cynthia Morata-Tarifa, Joyce M Slingerland   +1 more
exaly  

Multidisciplinary standards of care and recent progress in pancreatic ductal adenocarcinoma

Ca-A Cancer Journal for Clinicians, 2020
Aaron J Grossberg, William L Hwang, Anirban Maitra   +2 more
exaly