Use of electron beam irradiation for improving reactivity of dissolving pulp in viscose process

Viscose staple fibres are produced by multi-stage chemical intensive unit operations. Low pulp reactivity is the main reason for higher consumption of chemicals, especially CS 2 and NaOH. Electron beam irradiation (EBI) is one potential way to reduce chemical consumption by improving the pulp reacti...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2019-10, Vol.322 (1), p.67-72
Main Authors: Gondhalekar, Sachin C., Pawar, Pravin J., Dhumal, Sunil S.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Consumption
Diagnostic Radiology
Electron beams
Electron irradiation
Filterability
Food irradiation
Hadrons
Heavy Ions
Inorganic Chemistry
Mass transfer
Nuclear Chemistry
Nuclear Physics
Organic chemistry
Physical Chemistry
Reactivity
Ripening
Sodium hydroxide
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Summary:Viscose staple fibres are produced by multi-stage chemical intensive unit operations. Low pulp reactivity is the main reason for higher consumption of chemicals, especially CS 2 and NaOH. Electron beam irradiation (EBI) is one potential way to reduce chemical consumption by improving the pulp reactivity. In the present study, pulp reactivity improves from 28.73 to 33.87 and 39.85 for pulp irradiated at 2 kGy and 5 kGy, respectively, as compared to non-irradiated pulp. The viscose dope prepared from the irradiated pulp shows improvement in filterability ( kw ) and ripening index. This indicates improved mass transfer through EBI treatment by providing pulp accessibility towards NaOH and CS 2 .
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-019-06563-0