Can I read Pulp Bleaching on EtoBox?

Pulp Bleaching by Peter W. Hart is a book available to read on EtoBox.

What is Pulp Bleaching about?

## Abstract The bleaching of pulp involves the increase in brightness of chemical, mechanical, and recycled fibers. Each class of fiber requires a somewhat different bleaching treatment with recycled and mechanical fibers requiring somewhat similar bleaching methods. Elemental chlorine free kraft type chemical pulps are the most common type of chemical pulp produced even though these pulps are relatively difficult to bleach. Bleaching this type of fiber requires multiple oxidative bleaching stages often performed with a combination of chlorine dioxide, oxygen, and/or peroxide, along with caustic extraction stages which solubilize oxidized lignin fragments and neutralize organic acids. Mechanical pulp bleaching involves brightening the fiber with the removal of little to no organics (mainly lignin) from the fiber. This is typically performed with either peroxide or dithionite (hydrosulfite) in one or two stages of bleaching. Brightening of recycled fiber is also reviewed.

Author

Peter W. Hart

Publisher

Wiley-Interscience

Published

2019

Language

EN

ISBN

9780471485223

Subjects

Engineering, Mathematics, Science