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Calcium Sulfate

  1. Franz Wirsching

Published Online: 15 JUN 2000

DOI: 10.1002/14356007.a04_555

Ullmann's Encyclopedia of Industrial Chemistry

Ullmann's Encyclopedia of Industrial Chemistry

How to Cite

Wirsching, F. 2000. Calcium Sulfate. Ullmann's Encyclopedia of Industrial Chemistry. .

Author Information

  1. Gebrüder Knauf Westdeutsche Gipswerke, Iphofen, Federal Republic of Germany

Publication History

  1. Published Online: 15 JUN 2000

Chemistry Terms

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Abstract

The article contains sections titled:

1.Introduction
2.The CaSO4 - H2O System
2.1.Phases
2.2.Laboratory Synthesis
2.3.Industrial Dehydration of Gypsum
2.4.Energy Aspects
2.5.Structure, Mixed Compounds, Solubility
3.Occurrence, Raw Materials
3.1.Gypsum and Anhydrite Rock
3.2.Flue Gas Desulfurization (FGD) Gypsum
3.3.Phosphogypsum
3.4.Fluoroanhydrite
3.5.Other Byproduct Gypsums
4.Production
4.1.Natural Gypsum to Calcined Products
4.2.FGD Gypsum to Calcined Products
4.2.1.β-Hemihydrate and Multiphase Plasters from FGD Gypsum
4.2.2.α-Hemihydrate Plaster from FGD Gypsum
4.3.Phosphogypsum to Calcined Products
4.4.Anhydrite Plaster
5.Use and Properties of Gypsum Plasters and Products and Anhydrite Plasters
5.1.Hydration, Setting, Hardening
5.2.Prefabricated Gypsum Building Components
5.3.Gypsum Plaster
5.4.Other Uses
5.5.Properties of Gypsum Building Products Installed in Situ
6.Material Testing and Chemical Analysis
6.1.Standards
6.2.Testing
6.3.Chemical Analysis
6.4.Phase analysis
7.Economic Aspects
8.Recycling and Disposal