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Experimental study of enhanced phosphogypsum carbonation with ammonia under increased CO2 pressure
Zhao, Hongtao1,2; Li, Huiquan1; Bao, Weijun1; Wang, Chenye1; Li, Songgeng2; Lin, Weigang2
2015-09-01
Source PublicationJOURNAL OF CO2 UTILIZATION
ISSN2212-9820
Volume11Issue:SEPPages:10-19
AbstractPhosphogypsum is the byproduct discharged from phosphate industry. A novel process was proposed for converting phosphogypsum into ammonium sulfate via phosphogypsum carbonation with ammonia. The effects of stirring speed, reaction time, initial temperature, CO2 partial pressure, liquid-solid ratio and excess ammonia ratio were evaluated. The main phases presented before and after the carbonation process were identified using X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy with energy dispersive X-ray (SEM-EDX) and carbon-sulfur (CS) analytical techniques. The phosphogypsum was found to have the highest carbonation conversion of approximately 97% in 5 min. The product collected from the reaction was characterized as calcite with the average particle size smaller than the raw phosphogypsum. (C) 2014 Elsevier Ltd. All rights reserved.
KeywordCalcite Phosphogypsum Ammonium Accelerated Carbonation Increased Co2 Pressure
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.jcou.2014.11.004
Indexed BySCI
Language英语
WOS KeywordGAS DESULFURIZATION GYPSUM ; MINERAL CARBONATION ; AQUEOUS CARBONATION ; SEQUESTRATION ; PARAMETERS ; PRODUCTS ; WASTE
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Multidisciplinary ; Engineering, Chemical
WOS IDWOS:000361861600003
Citation statistics
Cited Times:33[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19580
Collection多相复杂系统国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Clean Prod Technol Hydromet, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Hongtao,Li, Huiquan,Bao, Weijun,et al. Experimental study of enhanced phosphogypsum carbonation with ammonia under increased CO2 pressure[J]. JOURNAL OF CO2 UTILIZATION,2015,11(SEP):10-19.
APA Zhao, Hongtao,Li, Huiquan,Bao, Weijun,Wang, Chenye,Li, Songgeng,&Lin, Weigang.(2015).Experimental study of enhanced phosphogypsum carbonation with ammonia under increased CO2 pressure.JOURNAL OF CO2 UTILIZATION,11(SEP),10-19.
MLA Zhao, Hongtao,et al."Experimental study of enhanced phosphogypsum carbonation with ammonia under increased CO2 pressure".JOURNAL OF CO2 UTILIZATION 11.SEP(2015):10-19.
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