Pulp Bleaching Today

by Hans Ulrich Suess

Overview

Pulp bleaching has gone through dramatic changes in the last two decades. The process has moved from a discharge of toxic and poorly biodegradable effluent to a general acceptance of environmentally sound technology. This book describes the production of high quality pulp with high brightness and good yield making the best use of resources. It reviews basics and explains the potential of different chemicals in bleaching, their ideal reaction conditions and their limitations. This reference work should educate students in the art of bleaching, assist mill personnel in their continuous effort for process optimization and help research and technology managers to select successful targets. Overview of bleaching agents and processes Comprehensive economic and environmental solutions

Product Details

ISBN-13:	9783110218244
Publisher:	De Gruyter
Publication date:	04/23/2010
Sold by:	Barnes & Noble
Format:	eBook
Pages:	310
File size:	12 MB
Note:	This product may take a few minutes to download.

About the Author

Ulrich Suess , Evonik Degussa GmbH, Hanau-Wolfgang, Germany.

Table of Contents

Introduction
Bleaching agents, properties and generation
Oxidizing agents; Reducing agents; Enzymes; Supporting chemicals; Risk and safety phrases
Bleaching of Chemical Pulp
Bleaching stages and sequences; Oxygen delignification; Chlorine dioxide; Alkaline extraction; Hydrogen peroxide bleaching; Ozone in pulp delignification; Exotic bleaching chemicals; TCF bleaching of pulp; Yield in bleaching; Effluent "free" processes
Stability of Brightness
Final bleaching with chlorine dioxide or peroxide; Final bleaching with peracetic acid or ozone; Brightness stability in TCF and ECF "light" bleaching
Bleaching of Mechanical Pulp
Reductive bleaching; Metals management; Bleaching with hydrogen peroxide; Conventional activation and stabilization; Modified peroxide activation; Control strategy in bleaching; Trouble shooting
Brightening of secondary fiber
Recycling of paper and board; Recycling for printing paper; Recycling for production of tissue; Recycling for production of board; Trouble shooting in deinking plants
General aspects of Pulp Production
Pulp strength; Wood resources; Emissions; Solid waste
Bleaching of Other Material
Outlook