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Study and modeling of the desintegration kinetics of coated paper

Bioresources, 2011 [Peer Reviewed Journal]

Tots els drets reservats info:eu-repo/semantics/openAccess ;ISSN: 1930-2126 ;EISSN: 1930-2126

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  • Title:
    Study and modeling of the desintegration kinetics of coated paper
  • Author: Vilaseca Morera, Fabiola ; Puig Serramitja, Josep ; Pèlach Serra, Maria Àngels ; El Mansouri, Nour-Eddine ; Alcalà Vilavella, Manel ; Roux, Jean-Claude ; Mutjé Pujol, Pere
  • Subjects: Chemical kinetics ; Cinètica química ; Deterioració ; Deterioration ; Estucament del paper ; Paper coating ; Paper vell ; Pasta de paper ; Reciclatge ; Recycling ; Waste paper ; Wood-pulp
  • Is Part Of: Bioresources, 2011
  • Description: The disintegration of recovered paper is the first operation in the preparation of recycled pulp. It is known that the defibering process follows a first order kinetics from which it is possible to obtain the disintegration kinetic constant (KD) by means of different ways. The disintegration constant can be obtained from the Somerville index results (%lsv and from the dissipated energy per volume unit (Ss). The %slv is related to the quantity of non-defibrated paper, as a measure of the non-disintegrated fiber residual (percentage of flakes), which is expressed in disintegration time units. In this work, disintegration kinetics from recycled coated paper has been evaluated, working at 20 revise rotor speed and for different fiber consistency (6, 8, 10, 12 and 14%). The results showed that the values of experimental disintegration kinetic constant, Ko, through the analysis of Somerville index, as function of time. Increased, the disintegration time was drastically reduced. The calculation of the disintegration kinetic constant (modelled Ko), extracted from the Rayleigh’s dissipation function, showed a good correlation with the experimental values using the evolution of the Somerville index or with the dissipated energy
  • Publisher: North Carolina State University. Department of Wood and Paper Science, College of Natural Resources
  • Language: English
  • Identifier: ISSN: 1930-2126
    EISSN: 1930-2126
  • Source: Recercat
    Geneva Foundation Free Medical Journals at publisher websites
    Directory of Open Access Journals
    ROAD: Directory of Open Access Scholarly Resources
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