STUDY OF 3 TCF BLEACHING PROCESSES APPLIED TO SODA-AQ HESPERALOE FUNIFERA PULP

Three experimental designs with hydrogen peroxide (with temperature, time and hydrogen peroxide concentration as operating conditions), peracetic acid (temperature, time and concentration of peracetic acid) and sodium perborate (perborate concentration, time and concentration of peroxide) have been carried out. Each experimental design followed the influence of the operational variables on the properties of the bleached pulps obtained. The polynomial model used allows obtaining of equations that relate the dependent variables with the independent ones, and reproduce the experimental results with errors below 9, 4 and 8% for bleaching with hydrogen peroxide, peracetic acid and sodium perborate, respectively.