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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/13272
Title: Hibiscus cannabinus and Hibiscus sabdariffa as an alternative pulp blend for softwood: Optimization of soda pulping process
Authors: Upadhyayaa J.S.
Dutt, Dharm
Singh B.
Tyagi C.H.
Published in: Indian Journal of Chemical Technology
Abstract: Due to dearth of forest based raw materials paper technocrats have explored the possibility of alternate cellulosic fibrous raw materials. H. cannabinus and H. sabdariffa - agro-based residues bear the characteristics of both, the softwood and hardwood fibers. The bast fibers of H. cannabinus and H. sabdariffa underneath the bark resemble with softwood and core fibers with hardwood. Morphological analysis and chemical composition of H. cannabinus and H. sabdariffa show their suitability for producing paper of various grades. This study provides optimized soda pulping conditions for better utilization of H. cannabinus and H. sabdariffa. Due to identical pulping conditions, H. cannabinus and H. sabdariffa can be delignified together. The optimum cooking conditions for H. cannabinus and H. sabdariffa were found to be as, active alkali 18% (as NaOH), temperature 165°C, time (at temperature) 180 min and wood to liquor ratio of 1:4.5. An AQ dose of 0.05% at an active alkali dose of 13% (as Na 2O) produces the screening rejects and kappa number similar to that obtained by using 15% active alkali (as Na2O).
Citation: Indian Journal of Chemical Technology (2008), 15(3): 277-286
URI: http://repository.iitr.ac.in/handle/123456789/13272
Issue Date: 2008
Keywords: Activation energy
Agriculture residues
I st order reaction constant
Kappa number
Lignin
Non-wood plants
Pulp yield
Soda pulping
ISSN: 0971457X
Author Scopus IDs: 24833745800
7005982560
57208093298
6602705260
Author Affiliations: Upadhyayaa, J.S., Department of Paper Technology, Indian Institute of Technology, Roorkee, Saharanpur Campus, Saharanpur 247 001, India
Dutt, D., Department of Paper Technology, Indian Institute of Technology, Roorkee, Saharanpur Campus, Saharanpur 247 001, India
Singh, B., Haryana Pollution Control Board, District Office, Yamuna Nagar 135 001, India
Tyagi, C.H., Department of Paper Technology, Indian Institute of Technology, Roorkee, Saharanpur Campus, Saharanpur 247 001, India
Corresponding Author: Dutt, D.; Department of Paper Technology, Indian Institute of Technology, Roorkee, Saharanpur Campus, Saharanpur 247 001, India
Appears in Collections:Journal Publications [PT]

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