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Beatability and run...
Beatability and runnability studies of ion-exchanged unbleached kraft pulps on a pilot scale
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- Bäckström, Marie (författare)
- KTH,RISE,STFI-Packforsk,Fiber- och polymerteknologi,640204-6962
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- Hammar, Lars-Åke (författare)
- RISE,STFI-Packforsk
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- Htun, Myat (författare)
- Mittuniversitetet,RISE,STFI-Packforsk,Institutionen för naturvetenskap, teknik och matematik (-2012)
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(creator_code:org_t)
- Walter de Gruyter GmbH, 2009
- 2009
- Engelska.
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Ingår i: Nordic Pulp & Paper Research Journal. - : Walter de Gruyter GmbH. - 0283-2631 .- 2000-0669. ; 24:1, s. 94-100
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- It has earlier been shown that the counter-ion to the charged groups in the fibre has a significant effect on the beatability of fibres, but large-scale investigations of this effect are scarce in the literature. The objectives of the present study were therefore to develop a technique to ion-exchange large quantities of industrial pulp into the Na +-form using complexing agents and to study the effect of industrial-scale refining on pulp fibres in the Na +-form and how the fibres respond to industrial-like papermaking. The results show that ion-exchange can indeed be conducted on a pilot-scale using complexing agents such as DTPA. The study further indicates that an energy reduction of 50% at a given WRV or tensile index may be achieved if the fibres are converted to Na +-form prior to pilot-scale refining. By applying these techniques in full-scale production, it should thus be possible to save significant amount of energy, especially in the case of papers made from unbleached pulp that usually demands a higher degree of beating to achieve sufficient strength.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
Nyckelord
- Beating
- Kraft pulps
- Mechanical properties
- Refining
- Swelling
- Chemical Engineering
- Cellulose and paper engineering
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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