Evaluation the effect pressure on oxygen pulp with hydrogen peroxide

• Grant number: 12/19133-8
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: May 01, 2013
• End date: April 30, 2015
• Field of knowledge: Agronomical Sciences - Forestry Resources and Forestry Engineering
• Principal Investigator: Gustavo Ventorim
• Grantee: Camila Juliane Marcondes
• Host Institution: Universidade Estadual Paulista (UNESP). Campus Experimental de Itapeva. Itapeva , SP, Brazil

Abstract

With the justification reducer reaction time of hydrogen peroxide, we can pressurize the bleaching stage. Then, the objective of this study is to evaluate the effect of temperature and oxygen pressure in bleachability pressurized peroxide stage and final pulp quality. It will be used a Kraft pulp delignified with oxygen industrially. There will be a sequence of ECF-Light bleaching OD(E+P)D(P+O). The results will be discussed in paper are: brightness, brightness reversion, bleaching chemical consumption and pulp viscosity. It will also study the quality of final pulp. (AU)