Effects of Surfactant on Formation Process and Performance of Phosphogypsum

李国忠; 李建权; 张锦峰; 于衍真

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Effects of Surfactant on Formation Process and Performance of Phosphogypsum

更新时间：2026-09-14

- Effects of Surfactant on Formation Process and Performance of Phosphogypsum
- 表面活性剂对磷石膏形成过程及性能的影响研究
- Issue 5, Pages: 448-452(2007)
- 作者机构：
  
  1. 济南大学材料科学与工程学院
  2. 济南大学土建学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007
- 稿件说明：
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李国忠, 李建权, 张锦峰, et al. Effects of Surfactant on Formation Process and Performance of Phosphogypsum[J]. 2007, (5): 448-452.
DOI：

李国忠, 李建权, 张锦峰, et al. Effects of Surfactant on Formation Process and Performance of Phosphogypsum[J]. 2007, (5): 448-452. DOI：

摘要

实验室模拟了湿法磷酸生产过程

实时测定了反应溶液的浊度

研究了磷石膏的形成过程

并以此确定石膏结晶的诱导期和晶核生长率;研究了表面活性剂对磷石膏结晶习性、晶体形貌以及石膏硬化体力学性能的影响.结果表明

表面活性剂木质素磺酸钠(MN)和十二烷基苯磺酸(LAS)都有利于磷酸在石膏介质中的滤过;掺入MN使磷石膏强度增加

掺入LAS使磷石膏强度降低.

Abstract

Gypsum crystallization was experimented under the conditions of the simulated dihydrate process of phosphoric acid production.The turbidity of the reaction mixture was measured at different periods to determine the induction time and the growth efficiency of gypsum crystal formation.Two kinds of surfactants were added to investigate their effect on the crystallization habits and mechanics property of phosphogypsum

and the internal microstructure of gypsum using Scanning Electron Microscope was studied.The results show that the strength of phosphogypsum is improved after surfactant MN is added

while the strength of phosphogypsum is reduced after surfactant LAS is added.

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references

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付兴华,高天广,李国忠.磷石膏转化为建筑石膏可能性研究[J].山东建材学院学报,2000,14(3):199-202.Fu Xinghua,Gao Tianguang,Li Guozhong.The possibility of transformation phosphogypsum into plaster of paris[J].Journal of Shandong Institute of Building Materials,2000,14(3):199-202.(in Chinese)

Becker P.Phosphates and Phosphoric Acid:Raw Materials[M].Technology and Economics of the Wet Processes,Dekker,New York,1989.

Elisabeth Badens.Crystallization of gypsum from hemihydrate in presence of additives[J].Journal of CrystalGrowth,1999:198/199:704-709.

ВУДЕНИЙКОВПП.石膏的研究与应用[M].北京:中国工业出版社,1963:1-15.

Jean Philippe Boisverta.Hydration of calcium sulfate hemihydrate(CaSO4.1/2H2O)into gypsum(CaSO4.2H2O).The influence of the sodium poly(acrylate)/surface interaction and molecular weight[J].Journal of Crystal Growth,2000(220):579-591.

El-Shall H,Moudgil B,Abdel-Aal E A.Cost effective reagents as defoamers and crystal modifiers to enhance thefiltration of phosphogypsum[J].FIPR Publication,1999(1):141-162.

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