Latest Developments in Alkaline Peroxide Mechanical Pulping Part 1: Combination of chip pretreatment and refiner bleaching, 2001 Pulping Conference Proceedings
E. C. Xu--In this investigation, three different alkaline peroxide chemical treatments were investigated: all the chemicals at the
chip impregnation, all the chemicals at the primary refiner, and a combination of both. The results demonstrated that
applying some of alkali peroxide chemical at both chip impregnation and refiner eye had:
a) the best peroxide bleaching efficiency among the three;
b) the same energy efficiency as applying all the chemicals at impregnation, but more efficient than applying all
the chemicals at refiner eye;
c) the similar light scattering coefficient as applying all the chemicals at the refiner eye, and better than applying
all the chemicals at the chip impregnation.