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On-Site X-ray Fluor...
On-Site X-ray Fluorescence Spectrometry Measurement Strategy for Assessing the Sulfonation to Improve Chemimechanical Pulping Processes
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- Rahman, Hafizur, Researcher, 1978- (author)
- Mid Sweden University,Mittuniversitetet,Institutionen för kemiteknik
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- An, Siwen (author)
- Lunds universitet,Mittuniversitetet,Institutionen för elektronikkonstruktion,Lund University,MAX IV-laboratoriet,MAX IV Laboratory
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- Norlin, Börje, associate professor, 1967- (author)
- Mid Sweden University,Mittuniversitetet,Institutionen för elektronikkonstruktion
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- Persson, Erik, 1972- (author)
- Mid Sweden University,Mittuniversitetet,Institutionen för kemiteknik
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- Engstrand, Per, Professor, 1955- (author)
- Mid Sweden University,Mittuniversitetet,Institutionen för kemiteknik
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- Zeeshan, Faisal (author)
- Mid Sweden University,Mittuniversitetet,Institutionen för elektronikkonstruktion
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- Granfeldt, T. (author)
- Valmet AB
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- Slavicek, Tomas (author)
- Mittuniversitetet,Institutionen för elektronikkonstruktion,Czech Technical University in Prague
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- Pettersson, Gunilla (author)
- Mid Sweden University,Mittuniversitetet,Institutionen för kemiteknik
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(creator_code:org_t)
- 2022-12-15
- 2022
- English.
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In: ACS Omega. - : American Chemical Society (ACS). - 2470-1343. ; 7:51, s. 48555-48563
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Abstract
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- Minimizing the fiber property distribution would have the potential to improve the pulp properties and the process efficiency of chemimechanical pulp. To achieve this, it is essential to improve the level of knowledge of how evenly distributed the sulfonate concentration is between the individual chemimechanical pulp fibers. Due to the variation in quality between pulpwood and sawmill chips, as well as the on-chip screening method, it is difficult to develop an impregnation system that ensures the even distribution of sodium sulfite (Na2SO3) impregnation liquid. It is, therefore, crucial to measure the distribution of sulfonate groups within wood chips and fibers on a microscale. Typically, the degree of unevenness, i.e., the amount of fiber sulfonation and softening prior to defibration, is unknown on a microlevel due to excessively robust or complex processing methods. The degree of sulfonation at the fiber level can be determined by measuring the distribution of elemental sulfur and counterions of sulfonate groups, such as sodium or calcium. A miniaturized energy-dispersive X-ray fluorescence (ED-XRF) method has been developed to address this issue, enabling the analysis of sulfur distributions. It is effective enough to be applied to industrial laboratories for further development, i.e., improved image resolution and measurement time.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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ACS Omega
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- By the author/editor
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Rahman, Hafizur, ...
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An, Siwen
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Norlin, Börje, a ...
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Persson, Erik, 1 ...
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Engstrand, Per, ...
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Zeeshan, Faisal
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Granfeldt, T.
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Slavicek, Tomas
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Pettersson, Guni ...
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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and Paper Pulp and F ...
- Articles in the publication
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ACS Omega
- By the university
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Mid Sweden University
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Lund University