Tag Archives: bleaching of pulp

Chlorine dioxide bleaching

Chlorine dioxide is an oxidizing agent for pulp bleaching. The chemical formula of this chlorine dioxide bleach is ClO2. It is a yellowish-green gas, bad odor and liquefied in 11⁰C which is red in color. It is an ECF (elemental chlorine-free) bleaching process which is currently most Read more

Posted in pulp bleaching, Pulp Mill | Tagged , , , , , | Leave a comment

Pulp Bleaching Sequences

Globally, there are several bleaching sequences are shown in different pulp mills to achieve the bleaching action. Different chemicals are used in each stage usually with washing between two stages to removes products. The preference of bleaching sequences depends on many things such Read more

Posted in pulp bleaching, Pulp Mill | Tagged , , , , | Leave a comment

What is bleaching of pulp

The objective of pulp bleaching is to produce white pulp. Unbleached pulps are not suitable for manufacturing of high grade of white paper. Since all the processing pulp brightness is very low, especially Kraft pulp. The sulfite pulping process produces comparatively bright chemical pulps, while Read more

Posted in pulp bleaching, Pulp Mill | Tagged , , | Leave a comment