Effect of SiO2 on the melting characteristics of reaction between phosphogypsum and calcium sulfide
详细信息 查看全文
- 作者：Ting Shi ; Tianming Wan ; Zhiye Zhang…
- 关键词：Phosphogypsum ; Calcium sulfide ; Melting temperature ; Silicon dioxide
- 刊名：Journal of Thermal Analysis and Calorimetry
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：123
- 期：2
- 页码：1601-1609
- 全文大小：2,194 KB
- 参考文献：1.Ei-Didamony H, Gado HS, Awwad NS, Fawzy MM, Attallah MF. Treatment of phosphogypsum waste produced from phosphate ore processing. J Hazard Mater. 2013;244:596–602.CrossRef
2.Perez-Lopez R, Alvarez-Valero AM, Nieto JM. Changes in mobility of toxic elements during the production of phosphoric acid in the fertilizer industry of Huelva (SW Spain) and environmental impact of phosphogypsum wastes. J Hazard Mater. 2007;148:745–50.CrossRef
3.Hentati O, Abrantes N, Caetano AL, Bouguerra S, Gonçalves F, Römbke J, Pereira R. Phosphogypsum as a soil fertilizer: ecotoxicity of amended soil and elutriates to bacteria, invertebrates, algae and plants. J Hazard Mater. 2015;294:80–9.CrossRef
4.Tayibi H, Choura M, Lopez FA, Alguacil FJ, Lopez-Delgado A. Environmental impact and management of phosphogypsum. J Environ Manage. 2009;90:2377–86.CrossRef
5.Parreira AB, Kobayashi ARK, Silvestre OB. Influence of Portland cement type on unconfined compressive strength and linear expansion of cement-stabilized phosphogypsum. J Environ Eng Asce. 2003;129:956–60.CrossRef
6.Degirmenci N. Utilization of phosphogypsum as raw and calcined material in manufacturing of building products. Constr Build Mater. 2008;22:1857–62.CrossRef
7.Papastefanou C, Stoulos S, Ioannidou A, Manolopoulou A. The application of phosphogypsum in agriculture and the radiological impact. J Environ Radioact. 2006;89:188–98.CrossRef
8.Degirmenci N, Okucu A, Turabi A. Application of phosphogypsum in soil stabilization. Build Environ. 2007;42:3393–8.CrossRef
9.Olszewski G, Boryło A, Skwarzec B. Uranium (234U, 235U and 238U) contamination of the environment surrounding phosphogypsum waste heap in Wiślinka (northern Poland). J Environ Radioact. 2015;146:56–66.CrossRef
10.Zhang DY, Luo HM, Zheng LW, Wang KJ, Li HX, Wang Y, Feng HX. Utilization of waste phosphogypsum to prepare hydroxyapatite nanoparticles and its application towards removal of fluoride from aqueous solution. J Hazard Mater. 2012;241:418–26.CrossRef
11.Aagli A, Tamer N, Atbir A, Boukbir L, El Hadek M. Conversion of phosphogypsum to potassium sulfate. J Therm Anal Calorim. 2005;82:395–9.CrossRef
12.Wang XL, Zhang ZY, Yang XS, Zhong BH. Analysis on new approaches for utilization of phosphogypsum in China. Mod Chem Ind. 2011;31:1–3.
13.Yang XS, Liu JF, Yu JX, Zhang ZY, Zhong BH, Wang XL. Research progress in production of sulfuric acid from phosphogypsum. Mod Chem Ind. 2010;30:8–12.
14.Yang XS, Zhang ZY, Wang XL, Yang L, Zhong BH, Liu JF. Thermodynamic study of phosphogypsum decomposition by sulfur. J Chem Thermodyn. 2013;57:39–45.CrossRef
15.van der Merwe EM, Strydom CA, Potgieter JH. Thermogravimetric analysis of the reaction between carbon and CaSO4 center dot 2H(2)O, gypsum and phosphogypsum in an inert atmosphere. Thermochim Acta. 1999;341:431–7.CrossRef
16.Ma L, Ning P, Zheng S, Niu X, Zhang W, Du Y. Reaction mechanism and kinetic analysis of the decomposition of phosphogypsum via a solid-state reaction. Ind Eng Chem Res. 2010;49:3597–602.CrossRef
17.Yang XS, Zhang ZY, Wang XL, Fang CY, Zhong BH. A method of PG decomposition with sulfur patent CN200910216326.2, 2010-05-19.
18.Ma LP, Du YL, Niu XK, Zheng SC, Zhang W. Thermal and kinetic analysis of the process of thermochemical decomposition of phosphogypsum with CO and additives. Ind Eng Chem Res. 2012;51:6680–5.CrossRef
19.Chen JM, Yang RT. Fluidized-bed combustion of coal with lime additives. Kinetics and mechanism of regeneration of the lime sorbent. Ind Eng Chem Fundam. 1979;18:134–48.CrossRef
20.Kamphuis B, Potma AW, Prins W, Van Swaaij WPM. The reductive decomposition of calcium sulphate—I. Kinetics of the apparent solid—solid reaction. Chem Eng Sci. 1993;48:105–16.CrossRef
21.Davies NH, Hayhurst AN. On the formation of liquid melts of CaS and CaSO4 and their importance in the absorption of SO2 by CaO. Combust Flame. 1996;106:359–62.CrossRef
22.Lindberg D, Chartrand P. Thermodynamic evaluation and optimization of the (Ca plus C plus O plus S) system. J Chem Thermodyn. 2009;41:1111–24.CrossRef
23.Yang RT, Shen MS. Direct evidence for the existence of gaseous intermediates in the calcium sulfide-calcium sulfate reaction. AIChE J. 1979;25:547–8.CrossRef
24.Strydom C, Groenewald E. P. J, Thermogravimetric studies of the synthesis of cas from gypsum, CaSO4·2H2O and phosphogypsum. J Therm Anal Calorim. 1997;49:1501–7.CrossRef
25.Ma LP, Niu XK, Hou J, Zheng SC, Xu WJ. Reaction mechanism and influence factors analysis for calcium sulfide generation in the process of phosphogypsum decomposition. Thermochim Acta. 2011;526:163–8.CrossRef
26.Wan TM, Zhang ZY, Wang XL, Yang XS, Zhong BH. Research on the melting characteristics during the reaction process of phosphogypsum and calcium sulfide. Mod Chem Ind. 2011;31:63–7.
27.Yan B, Ma L, Xie L, Ma J, Zi Z, Yan X. Reaction mechanism for iron catalyst in the process of phosphogypsum decomposition. Ind Eng Chem Res. 2013;52:17383–9.CrossRef - 作者单位：Ting Shi (1)
Tianming Wan (1)
Zhiye Zhang (1)
Xiushan Yang (1)
Lin Yang (1)
Benhe Zhong (1)
Xingjian Kong (1)
Xinlong Wang (1)
1. College of Chemical Engineering, Sichuan University, Chengdu, 610065, China - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Sciences
Polymer Sciences
Physical Chemistry
Inorganic Chemistry
Measurement Science and Instrumentation - 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
- ISSN：1572-8943
文摘
Currently, phosphogypsum (PG) pollution is a global problem. The reductive decomposition of PG to produce sulfuric acid is a good way to utilize this material. However, the solid–solid reaction between PG and calcium sulfide is an unavoidable step during this reaction. Silicon dioxide (SiO2) was the highest content of impurities during this reaction system, and it varies from 8 to 22 %. PG from different sources may differ with respect to the constituents and their amounts. Hence, the influence of the SiO2 on the melting characteristics of solid–solid reaction system was investigated in this paper. The melting phenomenon was clearly observed using scanning electron microscopy. Meanwhile, the melting temperature was decreased with an increased content of SiO2, which was illustrated using an ash fusion point determination meter and differential scanning calorimetry. Through phase diagram analysis, the reason for the changed melting temperature was discussed. The migration process of solid products was also illustrated. The results of the equilibrium analysis and phase diagram were obtained using FactSage6.1 software. Keywords Phosphogypsum Calcium sulfide Melting temperature Silicon dioxide