Auteur Pedram Fatehi
Documents disponibles écrits par cet auteur (7)
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Xin Liu, Auteur ; Pedram Fatehi, Auteur ; Yonghao Ni, Auteur |The prehydrolysis stage is essential in producing high-purity cellulose from the kraft-based process and is effective in removing hemicelluloses from wood chips. To convert hemicelluloses and other dissolved materials of the prehydrolysis liquor[...]
Article : texte imprimé
Pedram Fatehi, Auteur ; Kevin C. Outhouse, Auteur ; Huining Xiao, Auteur |Today, there is a steadily increasing demand for the application of surfactants as debonding agents in tissue manufacturing. The work presented herein focused on evaluating the debonding ability of cationic alkoxylated amine surfactant on unrefi[...]
Article : texte imprimé
Pedram Fatehi, Auteur ; Kevin C. Outhouse, Auteur ; Huining Xiao, Auteur |Debonding agents are applied in the paper industry for various purposes, for example, to increase the softness of tissue paper. In this work, the debonding capacities of three cationic aliphatic ammonium surfactants and one alkoxylated amine sur[...]
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Pedram Fatehi, Auteur ; Ahmet Tutus, Auteur ; Yonghao Ni, Auteur |In this study, the impact of soda−air−anthraquinone (AQ) pulping conditions on delignification and silica precipitation onto pulp fibers and paper sheets was studied. The results showed that the yield and silica precipitation slightly increased [...]
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Jing Shen, Auteur ; Pedram Fatehi, Auteur ; Pendar Soleimani, Auteur |In this study, the concept of using lime for the treatment of industrially produced prehydrolysis liquor (PHL) of kraft-based dissolving pulp production process was tested, and its effect on the concentrations of acetic acid, furfural, UV lignin[...]
Article : texte imprimé
Haiqiang Shi, Auteur ; Pedram Fatehi, Auteur ; Huining Xiao, Auteur |In this work, poly ethylene oxide (PEO) with various molecular weights (MW)s was employed to separate the lignin ot prehydrolysis liquor (PHL) ot a kraft-based dissolving pulp process. The results revealed that, the higher the MW and concentrati[...]
Article : texte imprimé
Pedram Fatehi, Auteur ; Jeffery E. Ward, Auteur ; Huining Xiao, Auteur |In this work, the effects of various high molecular weight cationic poly(vinyl alcohols), CPVAs, on the fiber morphology and the properties of papers made from fractionated refined fibers were investigated. At first, bleached sulfite fibers were[...]
