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JSIR Vol.63(06) [June 2004] >


Title: Studies on total chlorine free bleaching to get +90 brightness of mixed kraft pulp of E. tereticornis, B. aurandacea and P. roxumbergi
Authors: Dutt, Dharm
Tyagi, C H
Kumar, Dinesh
Keywords: TCF bleaching
Hardwoods
Brightness
Viscosity
Kappa number
BOD
COD
P C number
Issue Date: Jun-2004
Publisher: CSIR
IPC CodeInt.Cl7:C 01 B 21/00
Abstract: Mixed kraft pulp of E. tereticornis, B. aurandacea and P. roxumberghi in the ratio of 80: 15:05 was bleached by total chlorine free bleaching sequences (TCF). Various bleaching sequences like OZ, OQP, OQPP, OZQP, OQPZ and OZQPP were used to produce pulp of brightness of + 90 per cent. The effect of bleach chemicals on polysaccharide was also studied by determining the viscosity of finally bleached pulp. The bleaching sequences were also interchanged in order to observe the effect on brightness and pulp viscosity.
Page(s): 536-539
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Source:JSIR Vol.63(06) [June 2004]

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