Effect of Roasting and Quicklime Modification on Soluble Phosphorus Content in Phosphogypsum

GENG Qian; SUN Hongjuan; PENG Tongjiang; DING Wenjin; LUO Dongshan; CHEN Qiuju

doi:10.13779/j.cnki.issn1001-0076.2019.04.002

Conservation and Utilization of Mineral Resources > 2019 > 39(4): 9-13, 82. > DOI: 10.13779/j.cnki.issn1001-0076.2019.04.002

GENG Qian, SUN Hongjuan, PENG Tongjiang, DING Wenjin, LUO Dongshan, CHEN Qiuju. Effect of Roasting and Quicklime Modification on Soluble Phosphorus Content in Phosphogypsum[J]. Conservation and Utilization of Mineral Resources, 2019, 39(4): 9-13, 82. DOI: 10.13779/j.cnki.issn1001-0076.2019.04.002

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Effect of Roasting and Quicklime Modification on Soluble Phosphorus Content in Phosphogypsum

GENG Qian^{1, 2,},
SUN Hongjuan^{1, 2,*, ,},
PENG Tongjiang^{1, 2, 3},
DING Wenjin^{1, 2},
LUO Dongshan^{1, 2},
CHEN Qiuju^{1, 2}

1.
Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang 621010, China
2.
Institute of Mineral and Applicaton, Southwest University of Science and Technology, Mianyang 621010, China
3.
Analytical and Testing Center, Southwest University of Science and Technology, Mianyang 621010, China

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Received Date: April 08, 2019
Publish Date: August 24, 2019
Issue Publish Date: August 24, 2019

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Abstract

Abstract

Phosphogypsum contains soluble phosphorus, which limits the application of phosphogypsum in building materials. Using quicklime as a modifier, the content of soluble phosphorus in phosphogypsum under different mass ratio of quicklime/phosphogypsum and different calcination temperatures were studied. X-ray diffraction, field emission scanning electron microscopy, acidity-basicity analyzer and laser particle size analyzer were used to analyze and compare the phase composition, micro-morphology, acidity-basicity and particle size distribution of phosphogypsum before and after calcination. The results showed that all gypsum in phosphogypsum was converted to bassanite when the calcination temperature was between 100℃ and 200℃. The surface of the phosphogypsum crystal was damaged, which caused the soluble phosphorus content to increase gradually with the calcination temperature. Since quicklime can promote the conversion of soluble phosphorus into insoluble substance, the soluble phosphorus in phosphogypsum can be reduced effectively after adding the modifier of quicklime. The content of soluble phosphorus decreased with quicklime dosage. Phosphogypsum with a slight content of soluble phosphorus can be obtained by modifying and calcining. This will provide new guidance for the resource utilization of phosphogypsum.
- phosphogypsum,
- soluble phosphorus,
- quicklime,
- calcination,
- modification

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References (26)

References

[1]	Tayibi H, Choura M, López F A, et al. Environmental impact and management of phosphogypsum[J]. Journal of environmental management, 2009, 90(8):2377-2386. DOI: 10.1016/j.jenvman.2009.03.007
[2]	王圳, 张均, 陈芳, 等.贵州省磷矿固体废弃物治理现状与建议[J].矿产综合利用, 2019(1):11-15. DOI: 10.3969/j.issn.1000-6532.2019.01.003
[3]	Deǧirmenci N. Utilization of phosphogypsum as raw and calcined material in manufacturing of building products[J]. Construction and building materials, 2008, 22(8):1857-1862. DOI: 10.1016/j.conbuildmat.2007.04.024
[4]	杨冬蕾.我国磷石膏和钛石膏资源化利用进展及展望[J].硫酸工业, 2018(10): 5-10. DOI: 10.3969/j.issn.1002-1507.2018.10.002
[5]	张欢, 彭家惠, 郑云.不同形态可溶磷对石膏性能的影响[J].硅酸盐通报, 2013, 32(12):2455-2459. http://d.old.wanfangdata.com.cn/Periodical/gsytb201312010
[6]	Huang Y, Qian J, Liu C, et al. Influence of phosphorus impurities on the performances of calcium sulfoaluminate cement[J]. Construction & building materials, 2017, 149: 37-44. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=42d9645068b77e2fbed01171536c9830
[7]	杨敏, 钱觉时, 王智, 等.杂质对磷石膏应用性能的影响[J].材料导报, 2007(6):104-106. DOI: 10.3321/j.issn:1005-023X.2007.06.026
[8]	Singh M. Role of phosphogypsum impurities on strength and microstructure of selenite plaster[J].Construction and building materials, 2005, 19(6): 480-486. DOI: 10.1016/j.conbuildmat.2004.07.010
[9]	Moalla R, Gargouri M, Khmiri F, et al. Phosphogypsum purification for plaster production: A process optimization using full factorial design[J]. Environmental engineering research, 2017, 23(1): 36-45. DOI: 10.4491/eer.2017.055
[10]	刘路珍, 陈德玉, 刘宇浩, 等.磷石膏预处理及制备建筑石膏的研究[J].非金属矿, 2014, 37(3):30-32. http://d.old.wanfangdata.com.cn/Periodical/fjsk201403011
[11]	Ma B, Lu W, Ying S, et al. Synthesis of α-hemihydrate gypsum from cleaner phosphogypsum[J]. Journal of cleaner production, 2018, 195: 396-405. DOI: 10.1016/j.jclepro.2018.05.228
[12]	张茹, 李艳军, 刘杰, 等.磷石膏的综合利用及有害元素处理方法[J].矿产保护与利用, 2015(2):50-54. http://kcbh.cbpt.cnki.net/WKD/WebPublication/paperDigest.aspx?paperID=710a92a5-7310-4a01-87a0-0f51ebd144ba
[13]	杨耿, 秦延文, 马迎群, 等.沱江流域磷石膏的磷形态组成及潜在释放特征[J].环境工程技术学报, 2018, 8(6):610-616. DOI: 10.3969/j.issn.1674-991X.2018.06.081
[14]	任婷艳, 杨家宽, 奚蓉.煅烧和蒸养预处理对磷石膏中水溶性杂质去除效果的对比研究[J].广东化工, 2018, 45(10):97-99. DOI: 10.3969/j.issn.1007-1865.2018.10.043
[15]	Yang J, Liu W, Zhang L, et al. Preparation of load-bearing building materials from autoclaved phosphogypsum[J]. Construction and building materials, 2009, 23(2): 687-693. DOI: 10.1016/j.conbuildmat.2008.02.011
[16]	李凤玲, 钱觉时, 倪小琴, 等.快烧对磷石膏脱水相组成及胶凝性能的影响[J].硅酸盐学报, 2015, 43(5):579-584. http://d.old.wanfangdata.com.cn/Periodical/gsyxb201505005
[17]	Rashad A M. Phosphogypsum as a construction material[J].Journal of cleaner production, 2017, 166: 732-743. DOI: 10.1016/j.jclepro.2017.08.049
[18]	姜伟, 范立瑛, 王志.煅烧温度对脱硫石膏性能影响[J].济南大学学报(自然科学版), 2008(3):244-247. DOI: 10.3969/j.issn.1671-3559.2008.03.006
[19]	丁萌, 李建锡, 李兵兵.磷石膏中杂质及预处理对α半水石膏性能的影响[J].环境工程学报, 2014, 8(9):4017-4021. http://d.old.wanfangdata.com.cn/Periodical/hjwrzljsysb201409080
[20]	李永靖, 岳玮琦, 潘铖, 等.预处理工艺影响磷石膏水泥砂浆性能研究[J].非金属矿, 2018, 41(1):15-17. DOI: 10.3969/j.issn.1000-8098.2018.01.005
[21]	Chen X, Gao J, Liu C, et al. Effect of neutralization on the setting and hardening characters of hemihydrate phosphogypsum plaster[J]. Construction and building materials, 2018, 190: 53-64. DOI: 10.1016/j.conbuildmat.2018.09.095
[22]	巴太斌, 徐亚中, 卢文运, 等.石灰中和预处理磷石膏试验研究[J].新型建筑材料, 2018, 45(2):96-99. DOI: 10.3969/j.issn.1001-702X.2018.02.025
[23]	Jiang G, Wu A, Wang Y, et al. Low cost and high efficiency utilization of hemihydrate phosphogypsum: Used as binder to prepare filling material[J]. Construction and building materials, 2018, 167: 263-270. DOI: 10.1016/j.conbuildmat.2018.02.022
[24]	Yu R C, Teh H W, Jaques P A, et al. Quality control of semi-continuous mobility size-fractionated particle number concentration data[J]. Atmospheric environment, 2004, 38(20): 3341-3348. DOI: 10.1016/j.atmosenv.2004.03.009
[25]	庞英, 杨林, 杨敏, 等.磷石膏中杂质的存在形态及其分布情况研究[J].贵州大学学报(自然科学版), 2009, 26(3):95-99. DOI: 10.3969/j.issn.1000-5269.2009.03.026
[26]	孙正.磷石膏中的磷和氟对硅酸盐水泥水化影响的机理研究[D].武汉: 武汉理工大学, 2010.

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