INVESTIGADORES
AREA Maria Cristina
congresos y reuniones científicas
Título:
Purification of the cellulosic fraction from the fractionation of Eucalyptus sp. sawdust by oxidative treatments
Autor/es:
RODRÍGUEZ, G.; EHMAN, N.; AREA, M.C.; FELISSIA, F.E.
Lugar:
Colonia del Sacramento
Reunión:
Congreso; 6th International Colloquium on Eucalyptus Pulp (6th ICEP); 2013
Institución organizadora:
ICEP
Resumen:
Global demand for dissolving pulp in 2012 was 5.8 million tones and is estimated to reach a value of 6.9 million tons by 2014. Of the total, 4.3 million tones are used for viscous pulp and the rest for high grade alpha cellulose, for the production of acetates, ethers and other specialties. This work applies the concept of biorefinery to the purification of the cellulosic fraction of sawdust which has been subjected to a hydrothermal-alkaline treatment of Eucalyptus sp., by using oxidative treatments in order to obtain dissolving pulp. The pulp was treated subsequently with oxygen, ozone and an alkaline extraction. The properties of the obtained pulps were evaluated and compared with a pulp of sugarcane bagasse subjected to the same treatment and with commercial dissolving pulps. The obtained pulps after applying an oxidizing treatment with ozone meet the requirements of dissolving pulps.