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Journal of Plant Sciences
  Year: 2007 | Volume: 2 | Issue: 6 | Page No.: 600-606
DOI: 10.3923/jps.2007.600.606
 
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Influence of Sulfidity and Active Alkali Charge on the Properties of Pulp Produced from Eucalyptus camaldulensis

Hayedeh Rahmati, Shahram Navaee-Ardeh and Hedayatallah Aminian

Abstract:
The influence of cooking liquor parameters as independent variables, i.e., active alkali and sulfidity was investigated on the properties of pulp produced from Eucalyptus camaldulensis. The pulp properties were cooking yield, kappa number, rejects rate, brightness and viscosity. The multiple nonlinear regression of independent and dependent variables were conducted with MATLAB software using least square method. According to the results, by increasing sulfidity from 20 to 40% and decreasing active alkali from 25 to 19% on o.d. wood it was possible to improve the pulping yield significantly but simultaneously reject rate increased. However, the effect of decreasing active alkali charge was more influential than increasing sulfidity in all cases. By using D0ED1 bleaching sequence averagely 262% improvement in brightness and only 6.5% reduction in viscosity were observed.
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How to cite this article:

Hayedeh Rahmati, Shahram Navaee-Ardeh and Hedayatallah Aminian, 2007. Influence of Sulfidity and Active Alkali Charge on the Properties of Pulp Produced from Eucalyptus camaldulensis . Journal of Plant Sciences, 2: 600-606.

DOI: 10.3923/jps.2007.600.606

URL: https://scialert.net/abstract/?doi=jps.2007.600.606

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