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Method of reducing the energy consumption at the refining of cellulose-containing material WO 1987006280 A1
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences, Engineering and Mathematics. (FSCN - High Yield Pulping Research Profile)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering. (High Yield Pulping Research Profile)
Innventia (STFI).
STFI.
1987 (English)Patent (Other (popular science, discussion, etc.))
Abstract [en]

Method of reducing the energy consumption at the refining/beating of cellulose-containing material by the addition of alkali to the material for neutralizing acid groups bonded to the fibre wall. According to the invention, the pH-value in the pulp suspension is measured at the refiner outlet, the alkali is added in an amount depending on the measured pH value for neutralization without excess in the beating zone or immediately before the material enters the same, in an amount of 0.05-9 kg/ton, preferably 0.5-5 kg /ton, suitably 1-4 kg/ton, calculated as NaOH.

Place, publisher, year, edition, pages
1987.
Keyword [en]
mechanical pulp, energy
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:miun:diva-29407OAI: oai:DiVA.org:miun-29407DiVA: diva2:1051874
Patent
SE WO 1987006280 A1 (1987-10-22)
Available from: 2016-12-04 Created: 2016-12-04 Last updated: 2016-12-13Bibliographically approved

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