The Improvement of the Bleaching of Peroxyformic Sugar Cane Bagasse Pulp by Photocatalysis and Photosensitization

The Improvement of the Bleaching of Peroxyformic Sugar Cane Bagasse Pulp by Photocatalysis and Photosensitization

Presented here is a new process in two stages for bleaching peroxyformic sugar cane bagasse pulp combining photosensitization and photocatalysis. The first stage consists of an irradiation (1h), with tungsten or mercury lamps, of the pulp under alkaline pH in aqueous suspension at a consistency of 5...

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Bibliographic Details
Main Authors: Castellan A., Perez D. da Silva, Nourmamode A., Grelier S., Terrones M.G.H., Machado A.E.H., Ruggiero R.
Format: Article
Language:English
Published: Sociedade Brasileira de Química 1999-01-01
Series:Journal of the Brazilian Chemical Society
Subjects:
cellulosic pulp
bleaching
photocatalysis
titanium dioxide
lignin
photobleaching
oxygen
hydrogen peroxide
photosensitization
singlet oxygen
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531999000300007

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http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531999000300007

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