Effect of ozone bleaching on the fibre properties of pine and birch kraft pulp

Seisto, Anu; Poppius-Levlin, Kristiina; Fuhrmann, Agneta

doi:10.1533/9781845698546.137

Cited by 5 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Dos perácidos utilizados destacam-se os ácidos peracético, pernítrico, permonofosfórico e perfórmico, este último já tendo sido testado em escala piloto 118 .…”

Section: Figura 15 Oxidação De áCidos Hexenurônicos Por Paunclassified

A utilização de perácidos na deslignificação e no branqueamento de polpas celulósicas

Brasileiro¹,

Colodette²,

Piló‐Veloso³

2001

Quím. Nova

View full text Add to dashboard Cite

Recebido em 18/8/00; aceito em 4/4/01 THE USE OF PERACIDS IN DELIGNIFICATION AND CELLULOSE PULP BLEACHING . Peracids are strong oxidant species and their use is being largely studied in the delignification and cellulose pulp bleaching. Some of them has already an industrial application, specially in non-conventional bleaching sequences like ECF (Elemental chlorine free) and TCF (Totally chlorine free). This review presents the main aspects of the structure, properties, preparation and reaction of peracids (peracetic acid, peroxymonosulfuric acid and their mixture) with lignin, specially for peracetic acid. Information about bleaching and delignification of wood pulps with peracids and the factors affecting its efficiency are also presented.

show abstract

“…Dos perácidos utilizados destacam-se os ácidos peracético, pernítrico, permonofosfórico e perfórmico, este último já tendo sido testado em escala piloto 118 .…”

Section: Figura 15 Oxidação De áCidos Hexenurônicos Por Paunclassified

A utilização de perácidos na deslignificação e no branqueamento de polpas celulósicas

Brasileiro¹,

Colodette²,

Piló‐Veloso³

2001

Quím. Nova

View full text Add to dashboard Cite

show abstract

“…This indicated accelerated delignification and degradation of the cellulose. Ozonation is recognized as a complex mass-transfer process including stages of both solid chemical absorption and gasliquid mass transfer [23,24]. Because ozone is nearly insoluble in water, the resistance of mass transfer was supposed to be generally dependent on the water film between the ozone and the surface of the BKP.…”

Section: Effect Of Pulp Consistencymentioning

confidence: 99%

Ozone Oxidation of Kraft Bamboo Pulp for Preparation of Nanofibrillated Cellulose

Liu

Chen

Tian

2018

International Journal of Polymer Science

View full text Add to dashboard Cite

The influence of ozonation on the homogenization of Kraft bamboo pulp (KBP) for the production of nanofibrillated cellulose (NFC) was studied. Using optimized conditions for ozonation, that is, pulp consistency 35%, ozone dosage 0.87% (v/w), and pH = 2 5, the kappa number and viscosity of KBP decreased from 10.8 to 2.8 and from 1024 mL•g −1 to 258 mL•g −1 , respectively, while the crystallinity and carboxylate content increased from 36.2% to 48% and 0.93 mmol/g to 1.26 mmol/g, respectively. The ozonation-treated KPB was used as the substrate for NFC preparation through homogenization. With a width of 10-20 nm and length ≥ 250 nm, the prepared NFC had a high aspect ratio of length versus width. Ozonation can be used as an alternative approach to promote the efficient production of NFC from KBP.

show abstract

Application of enzyme technology in biopulping and biobleaching

Wei

Liu

et al. 2021

Cellulose

View full text Add to dashboard Cite

Effect of ozone bleaching on the fibre properties of pine and birch kraft pulp

Cited by 5 publications

References 3 publications

A utilização de perácidos na deslignificação e no branqueamento de polpas celulósicas

A utilização de perácidos na deslignificação e no branqueamento de polpas celulósicas

Ozone Oxidation of Kraft Bamboo Pulp for Preparation of Nanofibrillated Cellulose

Application of enzyme technology in biopulping and biobleaching

Contact Info

Product

Resources

About