Study of the valorization of phosphogypsum in the region of Gafsaas filler in paper

Four different fractions of phosphogypsum were characterized by several analytical techniques. The size and shape of particles were determined by scanning electron microscopy. Analyses of infrared spectroscopy and X-ray diffraction have shown that these particles are mainly composed of calcium sulfa...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2012-02, Vol.28 (1), p.12018-9
Main Authors: Hassen, S, Anna, Z, Elaloui E, E, Belgacem, M N, Mauret, E
Format: Article
Language:English
Subjects:
Calcination
Calcium sulfate
Diffraction
Fillers
Infrared analysis
Infrared spectroscopy
Mathematical analysis
Phosphogypsum
X-rays
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Summary:Four different fractions of phosphogypsum were characterized by several analytical techniques. The size and shape of particles were determined by scanning electron microscopy. Analyses of infrared spectroscopy and X-ray diffraction have shown that these particles are mainly composed of calcium sulfate more or less hydrated. Calcination tests were carried out showed that treatment of these powders at 600°C for one hour increase their initial britghtness to values high enough to be used as a filler in paper.
ISSN:1757-899X
1757-8981
1757-899X
DOI:10.1088/1757-899X/28/1/012018