Abstract Hydrogen peroxide (H< sub> 2</sub> O< sub> 2</sub>) bleaching in ethanol-water
media was used to improve the bleaching efficiency of the chemi-thermomechanical pulp …

The kappa number test is a control parameter commonly used in pulp mills and bleach
plants for estimating the residual lignin content in brownstocks and partially bleached pulps …

Caustic extractions performed with> 50% ethanol solutions severely hindered lignin removal
from chlorine dioxide (D0) treated pulps. In this study, we show that the alkali solubility of an …

Chlorine dioxide delignification (D0) stages performed in 90% ethanol resulted in post-D0
kappa numbers that were 2 to 2.5 units lower than those performed in water. In spite of the …

Kraft pulps delignified with ethanol-based chlorine dioxide (D0) stages yielded pulps with
higher brightness levels than aqueous D0 stages. However, when these pulps were …

ABSTRACT A generalized, steady-state model has been developed for estimating bleaching
delignification and/or chlorine dioxide consumption for sequences that employ oxidant …

Acid peroxide delignification of softwood kraft pulps catalyzed by molybdenum-and tungsten-
based polyoxometalates (POMs) resulted in pulps with reduced kappa numbers but little …

Caustic extractions performed with> 50% ethanol solutions severely hindered lignin removal
from chlorine dioxide (Do) treated pulps. In this study, we show that the alkali solubility of an …

In an earlier investigation, a generalized model was developed to simulate the first chlorine
dioxide brightening stage (D1). This stoichiometric model accurately predicts pulp …

The alkaline extraction stage plays a pivotal role in the removal of residual lignin during
bleaching. Previous investigations have shown that lignin extraction efficiency decreases …