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Preparation of Magnesium-Aluminum Hydrotalcite from Fly Ash
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Dingpeng LIU1, Jun QIN1, Qing LV1, Min HE2, 3, Jie YU3, Xing LI1
Journal of the Chinese Ceramic Society | 2020, 48(8) : 1341 - 1347
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Journal of the Chinese Ceramic Society | 2020, 48(8): 1341-1347
• Research Articles •
Preparation of Magnesium-Aluminum Hydrotalcite from Fly Ash
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Dingpeng LIU1, Jun QIN1, Qing LV1, Min HE2, 3, Jie YU3, Xing LI1
Affiliations
  • 1.Key Laboratory of the Ministry of Land and Resources of Karst Environment and Geology Disasters, Guizhou University, Guiyang 550025, China
  • 2.College of Materials Science and Metallugry Engineering, Guizhou University, Guiyang 550025, China
  • 3.National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang 550014, China

    • LIU Dingpeng (1994-), male, Master candidate. E-mail:

About Author:

LIU Dingpeng (1994-), male, Master candidate. E-mail:

Published: 2020-08-20 doi: 10.14062/j.issn.0454-5648.20190736
Outline
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An acid leaching solution containing aluminum ions was obtained by a sulfuric acid leaching process after calcining clinkers using coal fly ash as a raw material. Aluminum hydroxide was precipitated through adjusting the pH value of solution and used as an aluminum source. Magnesium aluminum hydrotalcite was synthesized via hydrothermal reaction with magnesium oxide and sodium carbonate. Based on the results by Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscopy, magnesium-aluminum hydrotalcite with a good crystallinity, a pure phase and a complete lamellar structure can be synthesized under the hydrothermal conditions (i.e., mole ratio n(MgO)∶n(Al(OH)3)∶n(Na2CO3) of 2∶1∶1, at 160 ℃ for 14 h). In addition, the feasibility of adsorbing phosphorus by Mg-Al hydrotalcite was also investigated. The removal rate can reach 97.4% when the concentration of phosphorus solution is 20 mg/L, the dosage of Mg-Al hydrotalcite is 0.7 g and pH value is 4-10.

coal fly ash  /  acid leaching of aluminum  /  hydrothermal method  /  magnesium aluminum hydrotalcite  /  phosphorous adsorption
刘定鹏, 秦军, 吕晴, 何敏, 于杰, 李杏. 以粉煤灰为原料制备镁铝水滑石. 硅酸盐学报, 2020 , 48 (8) : 1341 -1347 . DOI: 10.14062/j.issn.0454-5648.20190736
Dingpeng LIU, Jun QIN, Qing LV, Min HE, Jie YU, Xing LI. Preparation of Magnesium-Aluminum Hydrotalcite from Fly Ash[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (8) : 1341 -1347 . DOI: 10.14062/j.issn.0454-5648.20190736
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Year 2020 volume 48 Issue 8
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Article Info
doi: 10.14062/j.issn.0454-5648.20190736
  • Receive Date：2019-11-08
  • Online Date：2026-10-29
  • Published：2020-08-20
Article Data
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History
  • Received：2019-11-08
  • Revised：2020-01-14
Funding
Affiliations
    1.Key Laboratory of the Ministry of Land and Resources of Karst Environment and Geology Disasters, Guizhou University, Guiyang 550025, China
    2.College of Materials Science and Metallugry Engineering, Guizhou University, Guiyang 550025, China
    3.National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang 550014, China

Corresponding:

QIN Jun (1970-), male, Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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