DMD Pretreated H2O2 Bleaching Technologyof Massion Pine Dissolving Pulp

Min Du; Xin Ping Li; Cai Xia Ma

doi:10.4028/www.scientific.net/AMR.332-334.399

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 332-334DMD Pretreated H2O2 Bleaching Technologyof Massion...

DMD Pretreated H₂O₂ Bleaching Technologyof Massion Pine Dissolving Pulp

Abstract:

Dimethyldioxirane (DMD) pre-treatment of Massion Pine dissolving pulp has been studied in order to improve the effect of hydrogen peroxide bleaching. The influence of the dosage of acetone and peroxymonosulfate (PMS), the ratio of acetone to PMS, temperature and time of reaction were studied. The optimum parameters of DMD pre-bleaching process were at the 0.7% dosage of acetone and PMS while the ratio of the two was 3:4, and pretreated at 60°C for 100 minute. Pretreated with DMD at this condition, the brightness of final pulp increased 11.14% and the content of α-cellulose increased 9.62% compared with the pulp which bleached by hydrogen peroxide without DMD pretreatment.

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Periodical:

Advanced Materials Research (Volumes 332-334)

Pages:

399-402

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.332-334.399

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Online since:

September 2011

Authors:

Min Du, Xin Ping Li, Cai Xia Ma

Keywords:

Brightness, Dimethyldioxirane (DMD), Hydrogen Peroxide Bleaching, Massion Pine Dissolving Pulp, α-cellulose

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