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A method of producing cellulosic pulp EP 0500674 A1
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering. (FSCN - High Yield Pulping Research Profile)
Innventia (STFI).
Innventia (STFI).
Innventia (STFI).
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1992 (English)Patent (Other (popular science, discussion, etc.))
Abstract [en]

Is produced from mechanical pulp and chemi-mechanical, in particular paper pulp, with a low energy input, by disintegrating and timber trituration in one or several steps. According to the invention, is added a substance capable of forming complexes with polyvalent metal ions, particularly calcium ions, called complexing agent, to the timber, before the crushing process, to replace said calcium ions or Another singular versatile metal with sodium ions, which further reduces the energy input.

Place, publisher, year, edition, pages
1992.
Keyword [en]
ion exchange, complexing agent, mechanical pulping, chemimechanical pulping, low consistency refining, high consistency refiningchanical pulping, chemimechanical pulping, low consistency refining, high consistency refining
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:miun:diva-29427OAI: oai:DiVA.org:miun-29427DiVA: diva2:1051900
Patent
DE EP 0500674 A1 (1992-09-02)
Available from: 2016-12-05 Created: 2016-12-05 Last updated: 2016-12-13Bibliographically approved

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