Minerals in Paper Manufacturing

By Dr. Mahendra Patel

 

China clay, talc, calcium carbonate, titania and many otherfillers and pigments, used in papermaking at the stage of Stock preparation and Coating are from minerals. This book discusses in depth the structure and properties of these products and their applications in paper manufacturing.

 

It is learnt that one third of the paper produced in China is non-fibrous materials, notably the above mineral products. Cost of minerals (Fillers) is as low as one fourth of fibre. Therefore, increasing mineral content in paper and board means reduced cost of manufacturing. Enhancement in paper properties and environmental protection are other benefits on increasing use of minerals in paper.

 

However, increasing filler-loading reduces the strength of paper and causes many other problems in the manufacturing process. This book has reviewed all the problems and suggested many solutions for optimizing the filler-loading. Compatible chemicals including starch and other wet-end and dry-end chemicals have been cited in details with a view to increasing the filler-loading and improve drainage properties for better runnability. The fundamental mechanisms determining fibre-fibre and fibre-filler bonding have been thoroughly discussed. The variation in properties of coated products with different formulations has been given, based on the laboratory results. One section of this book discusses on the “High performance minerals” and finally on the related test procedures. Thus, the book can be of immense interest to the papermakers.

The first few chapters are general on History of papermaking, Indian paper industries, Economics, Basics and Modern paper manufacturing process, which are interesting and useful for all paper mills based on wood, agro-residues and recycled fibre. As the majority of recovered paper contains various mineral fillers and coating pigments, it is useful to the mills using recycled fibre also.  It contains 350 pages with 32 chapters in four different sections.

CONTENTS

              Section II   Stock Preparation and Coating
Chapter 5  Definitions and Basics
Chapter 6  Economics
Chapter 7  Mineral Fillers
Chapter 8  Minerals as Coating Pigments

              Section III   Beneficiation of Minerals
Chapter 9  Beneficiation of Kaolinite Clay
Chapter 10  Beneficiation of Talc
Chapter 11  Beneficiation of Calcium Carbonate
Chapter 12  Beneficiation of Titania
Chapter 13  Production of Alumina Hydrate

              Section IV   Structure, Properties and Applications
Chapter 14  Structure, Properties and Applications of Kaolinite
Chapter 15  Structure, Properties and Applications of Talc
Chapter 16  Structure, Properties and Applications of GCC
Chapter 17  Structure, Properties and Applications of PCC
Chapter 18  Structure, Properties and Applications of Titania
Chapter 19  Structure, Properties and Applications of Alumina Hydrate
Chapter 20  Structure, Properties and Applications of Satin White
Chapter 21  Structure, Properties and Applications of Gypsum
Chapter 22  Structure, Properties and Applications of Zeolite
Chapter 23  Structure, Properties and Applications of Silica
Chapter 24  Structure, Properties and Applications of Minor Minerals

              Section V   High Performance Mineral Products
Chapter 25  High Performance Kaolinite
Chapter 26  High Performance Products from Calcium Carbonate
Chapter 27  High Performance Products from Titania
Chapter 28  Plastic Pigments
Chapter 29  Talc for Pitch and Stickies Control
Chapter 30  Recycling and Recovery of Minerals
Chapter 31  Future Scenario on Minerals in Paper Manufacturing
Chapter 32  Testing and Quality Control