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Technology of Oxygen Delignification Boosted by a Complex Additive

Zhu Pang-li

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Abstract

The optimization of oxygen delignification boosted by a complex additive was discussed in this paper.As the delignification rate and reduction rate of viscosity after oxygen bleaching were considered,the optimal conditions were as follow: additive OB 0.05%,alkali charge 3%,MgSO4 charge 0.6%,temperature 80～90℃,reaction time 40min,oxygen pressure 0.5MPa.The bamboo pulp with high delignification and low reduction rate of viscosity was obtained at the optimal condition.

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What this paper is about

The optimization of oxygen delignification boosted by a complex additive was discussed in this paper.As the delignification rate and reduction rate of viscosity after oxygen bleaching were considered,the optimal conditions were as follow: additive OB 0.05%,alkali charge 3%,MgSO4 charge 0.6%,temperature 80～90℃,reaction time 40min,oxygen pressure 0.5MPa.The bamboo pulp with high delignification and low reduction rate of viscosity was obtained at the optimal condition.

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Available abstract

The optimization of oxygen delignification boosted by a complex additive was discussed in this paper.As the delignification rate and reduction rate of viscosity after oxygen bleaching were considered,the optimal conditions were as follow: additive OB 0.05%,alkali charge 3%,MgSO4 charge 0.6%,temperature 80～90℃,reaction time 40min,oxygen pressure 0.5MPa.The bamboo pulp with high delignification and low reduction rate of viscosity was obtained at the optimal condition.

Key concepts: Oxygen, Viscosity, Bamboo, Chemistry, Oxygen pressure, Alkali metal, Pulp (tooth), Mineralogy

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