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A Preliminary Note on Alkaline - Anthraquinone Pulping of Eucalyptus grandis


     

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Soda, Soda-anthraquinone (AQ) (both at 16% active alkali, approx. 1115, H factor) and Kraft (l4% active alkali, approx. 810, H factor, 25% sulphidity) pulpings were carried out to compare the yield, degree of delignification and physical strength properties of unbleached pulps, It was observed that soda. AQ pulp was slightly better than the controlled soda pulp but was inferior to the kraft pulp in respect to its quality and yield.
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K. S. Bhandari

Anita Srivastava

S. P. Singh

Y. K. Sharma


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  • A Preliminary Note on Alkaline - Anthraquinone Pulping of Eucalyptus grandis

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Abstract


Soda, Soda-anthraquinone (AQ) (both at 16% active alkali, approx. 1115, H factor) and Kraft (l4% active alkali, approx. 810, H factor, 25% sulphidity) pulpings were carried out to compare the yield, degree of delignification and physical strength properties of unbleached pulps, It was observed that soda. AQ pulp was slightly better than the controlled soda pulp but was inferior to the kraft pulp in respect to its quality and yield.