A method of producing cellulosic pulp EP 0500674 A1
1992 (English)Patent (Other (popular science, discussion, etc.))
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
ion exchange, complexing agent, mechanical pulping, chemimechanical pulping, low consistency refining, high consistency refiningchanical pulping, chemimechanical pulping, low consistency refining, high consistency refining
Paper, Pulp and Fiber Technology
IdentifiersURN: urn:nbn:se:miun:diva-29427OAI: oai:DiVA.org:miun-29427DiVA: diva2:1051900
DE EP 0500674 A1 (1992-09-02)