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On Pretreatment Experimental Study of Yunnan Phosphorus Building Gypsum

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Abstract:

This paper studied effect of different pretreatment process on Yunnan phosphorus building gypsum strength and crystal morphology such as washing method, lime neutralization method, flotation method and Hans method. A lots experiment result indicated that basic properties of phosphorus building gypsum of different pretreatment methods could satisfy related building materials products technology requirements. While inorganic impurities could be effectively removed by lime neutralization method and washing method, as well as organics could be better removed by flotation method, however, compared with other methods, the Hans method possessed the best effect about removing soluble phosphorus, fluorine and organic compounds in phosphogypsum , and had other benefit such as low cost, easy operated and high strength.

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Periodical:

Advanced Materials Research (Volumes 1025-1026)

Pages:

837-841

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1025-1026.837

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Cite this paper

Online since:

September 2014

Authors:

Song Han*, Zhi Man Zhao, Yao Hua Cheng, Yu Cheng Liu, Si Cheng Quan

Keywords:

Hans Method, Phosphogypsum, Phosphorus Building Gypsum, Pretreatment

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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